cable modem resets itself

  • Thread starter Thread starter mooky
  • Start date Start date
M

mooky

I am having a problem with my cable modem resetting itself for some
reason while I am on the web...I can browse the web like normal, but
out of the blue the cable light goes off, flashes, and then works like
normal..I get a server not found when browsing when that happens. I
did an ipconfig and it shows up my normal ip address..I assume then
that it has something to do with my PC somehow...anyone have any
suggestions as to what it could be? I called my ISP and they told me
about the ipconfig and what number mean a signal problem. is there
maybe a registry fix for this? is my TCP window size too large and
causing this? I have Goolged until I am cross eyed..hope someone can
help...also I did the usual unplugging the modem, wait 30 secs and
plug it back in.
 
I am having a problem with my cable modem resetting itself for some
reason while I am on the web...I can browse the web like normal, but
out of the blue the cable light goes off, flashes, and then works like
normal..I get a server not found when browsing when that happens. I
did an ipconfig and it shows up my normal ip address..I assume then
that it has something to do with my PC somehow...anyone have any
suggestions as to what it could be? I called my ISP and they told me
about the ipconfig and what number mean a signal problem. is there
maybe a registry fix for this? is my TCP window size too large and
causing this? I have Goolged until I am cross eyed..hope someone can
help...also I did the usual unplugging the modem, wait 30 secs and
plug it back in.
Click to expand...

also did the TCP alalyzer on SpeedGuide.net
« SpeedGuide.net TCP Analyzer Results »
Tested on: 07.02.2007 22:34
IP address: 74.195.xx.xx

TCP options string: 020405b401010402
MSS: 1460
MTU: 1500
TCP Window: 17520 (multiple of MSS)
RWIN Scaling: 0
Unscaled RWIN : 17520
Reccomended RWINs: 64240, 128480, 256960, 513920
BDP limit (200ms): 701kbps (88KBytes/s)
BDP limit (500ms): 280kbps (35KBytes/s)
MTU Discovery: ON
TTL: 114
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

hope someone can tell me what all this means and the best settings
 
'mooky' wrote, in part:
I am having a problem with my cable modem resetting itself for some
reason while I am on the web...I can browse the web like normal, but
out of the blue the cable light goes off, flashes, and then works like
normal..I get a server not found when browsing when that happens. I
did an ipconfig and it shows up my normal ip address..I assume then
that it has something to do with my PC somehow...anyone have any
suggestions as to what it could be? I called my ISP and they told me
about the ipconfig and what number mean a signal problem. is there
maybe a registry fix for this?
Click to expand...

Your ISP is the proper place to raise this question. Your ISP customer
support is responsible for a 'signal problem', not your computer or
operating system. Call back and escalate the complaint until you get
someone who understands the difference between a misconfiguration and a line
problem. No one here can really help you because we don't know any of the
details nor have any access to testing your signal where it enters your home
and where it enters your modem. Keeping contacting your ISP until you get
the problem fixed.

IT IS THE PROBLEM OF THE ISP to coordinate the solution to your problem. It
is NOT something you can do yourself, no matter WHAT information you gather.

Phil Weldon

I am having a problem with my cable modem resetting itself for some
reason while I am on the web...I can browse the web like normal, but
out of the blue the cable light goes off, flashes, and then works like
normal..I get a server not found when browsing when that happens. I
did an ipconfig and it shows up my normal ip address..I assume then
that it has something to do with my PC somehow...anyone have any
suggestions as to what it could be? I called my ISP and they told me
about the ipconfig and what number mean a signal problem. is there
maybe a registry fix for this? is my TCP window size too large and
causing this? I have Goolged until I am cross eyed..hope someone can
help...also I did the usual unplugging the modem, wait 30 secs and
plug it back in.
Click to expand...

also did the TCP alalyzer on SpeedGuide.net
« SpeedGuide.net TCP Analyzer Results »
Tested on: 07.02.2007 22:34
IP address: 74.195.xx.xx

TCP options string: 020405b401010402
MSS: 1460
MTU: 1500
TCP Window: 17520 (multiple of MSS)
RWIN Scaling: 0
Unscaled RWIN : 17520
Reccomended RWINs: 64240, 128480, 256960, 513920
BDP limit (200ms): 701kbps (88KBytes/s)
BDP limit (500ms): 280kbps (35KBytes/s)
MTU Discovery: ON
TTL: 114
Timestamps: OFF
SACKs: ON
IP ToS: 00000000 (0)

hope someone can tell me what all this means and the best settings
 
need to have the modem replaced.
how warm is the environment.
is it sitting in front of a window or near another heat source.



(e-mail address removed)



I am having a problem with my cable modem resetting itself for some
reason while I am on the web...I can browse the web like normal, but
out of the blue the cable light goes off, flashes, and then works like
normal..I get a server not found when browsing when that happens. I
did an ipconfig and it shows up my normal ip address..I assume then
that it has something to do with my PC somehow...anyone have any
suggestions as to what it could be? I called my ISP and they told me
about the ipconfig and what number mean a signal problem. is there
maybe a registry fix for this? is my TCP window size too large and
causing this? I have Goolged until I am cross eyed..hope someone can
help...also I did the usual unplugging the modem, wait 30 secs and
plug it back in.
 
need to have the modem replaced.
how warm is the environment.
is it sitting in front of a window or near another heat source.

(e-mail address removed)

I am having a problem with my cable modem resetting itself for some
reason while I am on the web...I can browse the web like normal, but
out of the blue the cable light goes off, flashes, and then works like
normal..I get a server not found when browsing when that happens. I
did an ipconfig and it shows up my normal ip address..I assume then
that it has something to do with my PC somehow...anyone have any
suggestions as to what it could be? I called my ISP and they told me
about the ipconfig and what number mean a signal problem. is there
maybe a registry fix for this? is my TCP window size too large and
causing this? I have Goolged until I am cross eyed..hope someone can
help...also I did the usual unplugging the modem, wait 30 secs and
plug it back in.
Click to expand...

ok...I said before I already talked to the ISP....I know it is not a
signal problem due to my ipconfig starting with 74.....also they said
I have to contact Toshiba, who makes the modem about it...so much for
being able to go get a modem replaced free from the local office I
guess...I did a speed tweak that optimized the TCP receive size..I
read about it causing problems if it is to high or if it is too
low...that's the ? I had asked about if anyone knows what size I
should set it to from reading my speed test results...
 
.I can browse the web like normal, but
out of the blue the cable light goes off, flashes, and then works like
normal..I get a server not found when browsing when that happens. I
did an ipconfig and it shows up my normal ip address..
Click to expand...

Not sure what you're trying to do with ipconfig. Even without a router or
modem attached it will report a number for your PC. Look into "ping" or
"traceroute." Use well known websites for this.

I think the problem is the modem resetting itself now and then. I had one
PC where I had to set network hardware not to go to sleep. Do this in
Device Manager for network things like the NIC card. If your modem is
connected via USB, turn off power management for that as well. Restart the
system to freshly apply any changes to power management.

NOTE: As a test, you could just set *everything* to not go to sleep using
the "always on" power plan. If that helps, then go back and tweak Device
Manager items that are related to your internet connection.

If no luck, look into a firmware update for the modem.

Aside: Some may argue but as far as the TCP packet change you did, I've
never found it to be very effective for cable connections. More useful for
dialup or DSL. If you can remember what the default settings were, change
it back. If not sure (I don't have XP handy to check), check another XP
system that still has default values for this.
 
I am having a problem with my cable modem resetting itself for some
reason while I am on the web...I can browse the web like normal, but
out of the blue the cable light goes off, flashes, and then works like
normal..I get a server not found when browsing when that happens. I
did an ipconfig and it shows up my normal ip address..I assume then
that it has something to do with my PC somehow...anyone have any
suggestions as to what it could be? I called my ISP and they told me
about the ipconfig and what number mean a signal problem. is there
maybe a registry fix for this? is my TCP window size too large and
causing this? I have Goolged until I am cross eyed..hope someone can
help...also I did the usual unplugging the modem, wait 30 secs and
plug it back in.
Click to expand...

PS: If the modem is not disconnecting/resetting due to power management
settings - check other things. Some things that come to mind: connections.
The ends on NIC cables can fit sloppy and can get worn to the point that
they are not as tight as they were when new. Try a different cable then the
one currently being used.

NIC cards can be very flakey too. These are relatively inexpensive for
desktops. Worthwhile to try a replacement when there is sporadic connection
and all else checks out okay.

And finally, you've already checked with the ISP. May need to check with
them again though. You may have hit a lazy tech who didn't really work
through the issue with you as well as they should have.
 
mooky said:
ok...I said before I already talked to the ISP....I know it is not a
signal problem due to my ipconfig starting with 74.....also they said
I have to contact Toshiba, who makes the modem about it...so much for
being able to go get a modem replaced free from the local office I
guess...I did a speed tweak that optimized the TCP receive size..I
read about it causing problems if it is to high or if it is too
low...that's the ? I had asked about if anyone knows what size I
should set it to from reading my speed test results...
Click to expand...

IPCONFIG really has nothing to do with your cable modem. The only thing
IPCONFIG will tell you is what IP address is assigned to your computer by
the cable modem, and this is only true if you have the cable modem connected
DIRECTLY to your computer. If it's not directly connected, then IPCONFIG
won't tell you anything about the cable modem.

I'm not sure how Toshiba cable modems work, but with my Motorola, I can
access the modem directly buy going to the IP address of 192.168.100.1 .
From here, I can examine a lot of details about the modem, and the signal
strength and quality it is getting from the cable provider. I used to have
the same issue as you, where the modem would sporadically reset for no good
reason, and through the help of the menu's and the log file within the
modem, it was determined that the signal strength to the modem was low, and
the SNR (Signal to Noise) Ratio was too high. Once the cable company came
and fixed whatever it was up on the connection at the pole (Guessing a new
connector) the modem has worked fine ever since...

Sporadic resets will NOT be caused by your computer. They are either signal
or hardware related. Either the signal is too weak compared to the noise
level, or the modem itself is on the way out... I'd give you a 98%
probability that the signal level is the problem. Modems generally aren't
sporadic; they either work or they don't...

I guess the easiest way to determine what the issue is, is to check the
modem's log file just after one of the resets. If you look through it, your
should see some type of error listed. It may not be clear by looking at it
what the problem is. IF it's not clear, take the error code or whatever and
Google it. You should be able to get more information that way. This will
certainly tell you where the problem lies...
 
Cox cable in my area has been changing network settings and generally
causing subscriber modems to go offline about once or twice a Day.
 
I am having a problem with my cable modem resetting itself for some
reason while I am on the web...I can browse the web like normal, but
out of the blue the cable light goes off, flashes, and then works like
normal..I get a server not found when browsing when that happens. I
did an ipconfig and it shows up my normal ip address..I assume then
that it has something to do with my PC somehow...anyone have any
suggestions as to what it could be? I called my ISP and they told me
about the ipconfig and what number mean a signal problem. is there
maybe a registry fix for this? is my TCP window size too large and
causing this? I have Goolged until I am cross eyed..hope someone can
help...also I did the usual unplugging the modem, wait 30 secs and
plug it back in.
Click to expand...

Assuming that your NNTP Posting IP address is correct (from your message
headers: NNTP-Posting-Host: 74.195.36.55), you might want to check out the
forums here:

http://www.dslreports.com/forum/cebridge

Should be able to find plenty of help from fellow user posting there.
Sign-up is free, and allows access to a number of extra features at the
site.
 
request to escalate the problem.
you need to have the modem replaced.
are you renting it or getting it free from the cable company.
it is their responsibility to take care of it for you;.

been there done that./



(e-mail address removed)



need to have the modem replaced.
how warm is the environment.
is it sitting in front of a window or near another heat source.

(e-mail address removed)

I am having a problem with my cable modem resetting itself for some
reason while I am on the web...I can browse the web like normal, but
out of the blue the cable light goes off, flashes, and then works like
normal..I get a server not found when browsing when that happens. I
did an ipconfig and it shows up my normal ip address..I assume then
that it has something to do with my PC somehow...anyone have any
suggestions as to what it could be? I called my ISP and they told me
about the ipconfig and what number mean a signal problem. is there
maybe a registry fix for this? is my TCP window size too large and
causing this? I have Goolged until I am cross eyed..hope someone can
help...also I did the usual unplugging the modem, wait 30 secs and
plug it back in.
Click to expand...

ok...I said before I already talked to the ISP....I know it is not a
signal problem due to my ipconfig starting with 74.....also they said
I have to contact Toshiba, who makes the modem about it...so much for
being able to go get a modem replaced free from the local office I
guess...I did a speed tweak that optimized the TCP receive size..I
read about it causing problems if it is to high or if it is too
low...that's the ? I had asked about if anyone knows what size I
should set it to from reading my speed test results...
 
request to escalate the problem.
you need to have the modem replaced.
are you renting it or getting it free from the cable company.
it is their responsibility to take care of it for you;.

been there done that./

(e-mail address removed)



ok...I said before I already talked to the ISP....I know it is not a
signal problem due to my ipconfig starting with 74.....also they said
I have to contact Toshiba, who makes the modem about it...so much for
being able to go get a modem replaced free from the local office I
guess...I did a speed tweak that optimized the TCP receive size..I
read about it causing problems if it is to high or if it is too
low...that's the ? I had asked about if anyone knows what size I
should set it to from reading my speed test results...
Click to expand...

I talked to them about having it replaced. The tech guy talked to a
manager and said that I need to contact Toshiba who makes the modem
about it. Not sure why since I bought it from Suddenlink around
Christmas...I was renting it when it was Cox, but when they switched
to Seldomlink, I bought it. Too bad you just can't call the local
office like you could when it was Cox

here's my results using speedtest.net

http://www.speedtest.net/result/
149416493.png
 
request to escalate the problem.
you need to have the modem replaced.
are you renting it or getting it free from the cable company.
it is their responsibility to take care of it for you;.
Click to expand...
been there done that./
Click to expand...
ok...I said before I already talked to the ISP....I know it is not a
signal problem due to my ipconfig starting with 74.....also they said
I have to contact Toshiba, who makes the modem about it...so much for
being able to go get a modem replaced free from the local office I
guess...I did a speed tweak that optimized the TCP receive size..I
read about it causing problems if it is to high or if it is too
low...that's the ? I had asked about if anyone knows what size I
should set it to from reading my speed test results...
Click to expand...

I talked to them about having it replaced. The tech guy talked to a
manager and said that I need to contact Toshiba who makes the modem
about it. Not sure why since I bought it from Suddenlink around
Christmas...I was renting it when it was Cox, but when they switched
to Seldomlink, I bought it. Too bad you just can't call the local
office like you could when it was Cox

here's my results using speedtest.net

http://www.speedtest.net/result/
149416493.png
Click to expand...

the above link didn't show an image so here's the direct link to my
test results

http://www.speedtest.net/result/149416493.png
 
Cox cable in my area has been changing network settings and generally
causing subscriber modems to go offline about once or twice a Day.
Click to expand...

Thanks for the insight, Chuck. Network problems on the ISP end would
certainly cause mooky's problem too.
 
that's why they refer you to Toshiba, you bought it.
looks like that is your best bet.



(e-mail address removed)



request to escalate the problem.
you need to have the modem replaced.
are you renting it or getting it free from the cable company.
it is their responsibility to take care of it for you;.

been there done that./

(e-mail address removed)



ok...I said before I already talked to the ISP....I know it is not a
signal problem due to my ipconfig starting with 74.....also they said
I have to contact Toshiba, who makes the modem about it...so much for
being able to go get a modem replaced free from the local office I
guess...I did a speed tweak that optimized the TCP receive size..I
read about it causing problems if it is to high or if it is too
low...that's the ? I had asked about if anyone knows what size I
should set it to from reading my speed test results...
Click to expand...

I talked to them about having it replaced. The tech guy talked to a
manager and said that I need to contact Toshiba who makes the modem
about it. Not sure why since I bought it from Suddenlink around
Christmas...I was renting it when it was Cox, but when they switched
to Seldomlink, I bought it. Too bad you just can't call the local
office like you could when it was Cox

here's my results using speedtest.net

http://www.speedtest.net/result/
149416493.png
 
that's why they refer you to Toshiba, you bought it.
looks like that is your best bet.

(e-mail address removed)

request to escalate the problem.
you need to have the modem replaced.
are you renting it or getting it free from the cable company.
it is their responsibility to take care of it for you;.

been there done that./

(e-mail address removed)



ok...I said before I already talked to the ISP....I know it is not a
signal problem due to my ipconfig starting with 74.....also they said
I have to contact Toshiba, who makes the modem about it...so much for
being able to go get a modem replaced free from the local office I
guess...I did a speed tweak that optimized the TCP receive size..I
read about it causing problems if it is to high or if it is too
low...that's the ? I had asked about if anyone knows what size I
should set it to from reading my speed test results...
Click to expand...

I talked to them about having it replaced. The tech guy talked to a
manager and said that I need to contact Toshiba who makes the modem
about it. Not sure why since I bought it from Suddenlink around
Christmas...I was renting it when it was Cox, but when they switched
to Seldomlink, I bought it. Too bad you just can't call the local
office like you could when it was Cox

here's my results using speedtest.net

http://www.speedtest.net/result/
149416493.png
http://www.speedtest.net][IMG]http://www.speedtest.net/result/
149416493.png[/QUOTE]
Click to expand...
 
that's why they refer you to Toshiba, you bought it.
looks like that is your best bet.
Click to expand...
I talked to them about having it replaced. The tech guy talked to a
manager and said that I need to contact Toshiba who makes the modem
about it. Not sure why since I bought it from Suddenlink around
Christmas...I was renting it when it was Cox, but when they switched
to Seldomlink, I bought it. Too bad you just can't call the local
office like you could when it was Cox
Click to expand...
here's my results using speedtest.net
Click to expand...
http://www.speedtest.net/result/
149416493.png[/QUOTE]
[/QUOTE]

http://www.speedtest.net][IMG]http://www.speedtest.net/result/149416493.png
Click to expand...
Click to expand...
 
that's why they refer you to Toshiba, you bought it.
looks like that is your best bet.
(e-mail address removed)
request to escalate the problem.
you need to have the modem replaced.
are you renting it or getting it free from the cable company.
it is their responsibility to take care of it for you;.
been there done that./
(e-mail address removed)
need to have the modem replaced.
how warm is the environment.
is it sitting in front of a window or near another heat source.
(e-mail address removed)
I am having a problem with my cable modem resetting itself for some
reason while I am on the web...I can browse the web like normal, but
out of the blue the cable light goes off, flashes, and then works like
normal..I get a server not found when browsing when that happens. I
did an ipconfig and it shows up my normal ip address..I assume then
that it has something to do with my PC somehow...anyone have any
suggestions as to what it could be? I called my ISP and they told me
about the ipconfig and what number mean a signal problem. is there
maybe a registry fix for this? is my TCP window size too large and
causing this? I have Goolged until I am cross eyed..hope someone can
help...also I did the usual unplugging the modem, wait 30 secs and
plug it back in.
ok...I said before I already talked to the ISP....I know it is not a
signal problem due to my ipconfig starting with 74.....also they said
I have to contact Toshiba, who makes the modem about it...so much for
being able to go get a modem replaced free from the local office I
guess...I did a speed tweak that optimized the TCP receive size..I
read about it causing problems if it is to high or if it is too
low...that's the ? I had asked about if anyone knows what size I
should set it to from reading my speed test results...
I talked to them about having it replaced. The tech guy talked to a
manager and said that I need to contact Toshiba who makes the modem
about it. Not sure why since I bought it from Suddenlink around
Christmas...I was renting it when it was Cox, but when they switched
to Seldomlink, I bought it. Too bad you just can't call the local
office like you could when it was Cox
here's my results using speedtest.net
http://www.speedtest.net/result/
149416493.png[/QUOTE][/QUOTE]

http://www.speedtest.net][IMG][/QUOTE]

http://www.speedtest.net/result/149416493.png is my results..hope the
link works...anyway, called Suddenlink tech support back lasty night.
He said it's more of a modem problem due to whatever stream errors he
mentiond...can't remember exactly what he said. He said that I could
go to the local office and have them test it and then if it is a modem
problem, to see if I could exchange it for a newer one since I bought
the modem in Dec. I don't know bout the warranty policy or
anything...the modem is kind of old...I had it when it was Cox and
then Cox became Suddenlink and they told me I should by it instead of
renting it like I have been. Sucks they are closed on the 4th since I
am off work...
Click to expand...
Click to expand...
Click to expand...
 
http://www.speedtest.net/result/149416493.png is my results..hope the
link works...anyway, called Suddenlink tech support back lasty night.
He said it's more of a modem problem due to whatever stream errors he
mentiond...can't remember exactly what he said. He said that I could
go to the local office and have them test it and then if it is a modem
problem, to see if I could exchange it for a newer one since I bought
the modem in Dec. I don't know bout the warranty policy or
anything...the modem is kind of old...I had it when it was Cox and
then Cox became Suddenlink and they told me I should by it instead of
renting it like I have been. Sucks they are closed on the 4th since I
am off work...
Click to expand...

I just did a test (DSL) with my system and I think that your numbers for
transmission and receipt should be much higher and the latency should be
much lower. My immediate impression is that the cable itself might be the
problem.

A while back, I was on a cable hook-up and squirrels chewing on the cable
produced endless problems including intermittent complete loss of signal.
The television signal on the same cable was just fine but the internet
connection was the pits.

Good luck
 
I just did a test (DSL) with my system and I think that your numbers for
transmission and receipt should be much higher and the latency should be
much lower. My immediate impression is that the cable itself might be the
problem.

A while back, I was on a cable hook-up and squirrels chewing on the cable
produced endless problems including intermittent complete loss of signal.
The television signal on the same cable was just fine but the internet
connection was the pits.

Good luck
Click to expand...

thanks...I'm gonna go have them test the modem at the local office
probably Fri. since I get off work around noon...if that's not the
problem..they are set to come out here and see Monday afternoon
between 1 and 3.
 
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