Losing Internet Connection A Few Times Each Day

  • Thread starter Thread starter husky86
  • Start date Start date
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husky86

About 3-4 times each and every day I'm losing my Internet connection. This
situation only lasts for about 1-2 minutes at a time, then everything is back
up and running. (This is a cable Internet connection in a home office, by the
way.)

I was actually on the phone with my ISP during one of these instances. The
tech support rep on the other end of the line was actually able to check
whether or not I was losing my actual cable signal during this outage. I was
informed that everything was working perfectly; the technician was able to
send and receive information to my cable Internet modem. I was informed that
all signals were strong and that everything was perfectly fine with regard to
the signal. But at the same time I had no ability to access the Internet on
my end.

I was informed by this same technician that it was most probably one or a
combination of the following: (1) a piece of spyware operating in the
background, (2) my anti-spyware and/or antivirus program operating in the
background (especially checking for updates), or (3) some other piece of
software that was checking for updates, which can cause signal interference.

The technical specs of my desktop system are: Windows Vista Ultimate
(Service Pack 1), Intel Core2 Extreme Q6850 3.00GHz, 4 GB RAM, 10,000 RPM
Western Digital Raptor, 1 TB Hitachi internal, NVIDIA nForce 680i SLI, NVIDIA
GeForce 8800 Ultra.

Here's what I've done to address the problem:

1. Ran a complete virus check. No problems found.
2. Ran a complete root kit test. No problems found.
3. Ran test for spyware. None found.
4. Turned off automatic updating for virus and spyware (suggested by the
manufacturer -- PC Tools). I'm running ThreatFire. No difference when
automatic updating was turned off.
5. Made sure I have the latest network driver, latest video card driver
(just in case), latest updates from Microsoft, etc.

I have been told by my ISP technicians that various programs checking for
automatic updates can often cause serious latency issues; not exactly sure if
this is true.....? If so, I have a number of programs that would be checking
for automatic updates. Does this mean that I need to go into the Preferences
section of each and every one of these programs and turn off automatic
updating? Or am I heading down the wrong road here (have I received bad
advice)?

Any info/suggestions would be most appreciated. Thanks in advance!
 
what brand and model cable modem?
what brand and model router?

About 3-4 times each and every day I'm losing my Internet connection. This
situation only lasts for about 1-2 minutes at a time, then everything is back
up and running. (This is a cable Internet connection in a home office, by the
way.)

I was actually on the phone with my ISP during one of these instances. The
tech support rep on the other end of the line was actually able to check
whether or not I was losing my actual cable signal during this outage. I was
informed that everything was working perfectly; the technician was able to
send and receive information to my cable Internet modem. I was informed that
all signals were strong and that everything was perfectly fine with regard to
the signal. But at the same time I had no ability to access the Internet on
my end.

I was informed by this same technician that it was most probably one or a
combination of the following: (1) a piece of spyware operating in the
background, (2) my anti-spyware and/or antivirus program operating in the
background (especially checking for updates), or (3) some other piece of
software that was checking for updates, which can cause signal interference.

The technical specs of my desktop system are: Windows Vista Ultimate
(Service Pack 1), Intel Core2 Extreme Q6850 3.00GHz, 4 GB RAM, 10,000 RPM
Western Digital Raptor, 1 TB Hitachi internal, NVIDIA nForce 680i SLI, NVIDIA
GeForce 8800 Ultra.

Here's what I've done to address the problem:

1. Ran a complete virus check. No problems found.
2. Ran a complete root kit test. No problems found.
3. Ran test for spyware. None found.
4. Turned off automatic updating for virus and spyware (suggested by the
manufacturer -- PC Tools). I'm running ThreatFire. No difference when
automatic updating was turned off.
5. Made sure I have the latest network driver, latest video card driver
(just in case), latest updates from Microsoft, etc.

I have been told by my ISP technicians that various programs checking for
automatic updates can often cause serious latency issues; not exactly sure if
this is true.....? If so, I have a number of programs that would be checking
for automatic updates. Does this mean that I need to go into the Preferences
section of each and every one of these programs and turn off automatic
updating? Or am I heading down the wrong road here (have I received bad
advice)?

Any info/suggestions would be most appreciated. Thanks in advance!
--

Barb Bowman
MS-MVP
http://www.microsoft.com/windowsxp/expertzone/meetexperts/bowman.mspx
http://blogs.digitalmediaphile.com/barb/
http://digitalmediaphile.wordpress.com
 
Very sorry that I did not include the model number on both of those pieces of
equipment. I went ahead and backed away from the computer for a few minutes
after starting my reply, came back and hit return like I was all finished and
then forgot about putting in the model number.

So here you go: D-Link 701P for the router, the Toshiba modem is model PCX2600

Thanks!
 
One follow-up question:

In looking on different manufacturer's websites -- Linksys, for example --
I'm noticing that some wired routers' data sheets state that they work with
platforms including Windows 2000 and Windows XP (but not Vista) while other
routers data sheets state nothing of the sort (no information with regard to
OS specifications). Why is this?

By the way, we are thinking about going with wired versus wireless because
of the cost difference and simply because our home is already wired. Also, we
don't want to take the chance of our neighbors potentially picking up on our
signal (our neighbors are fairly close). (But then again, maybe the current
technology makes such security concerns hopelessly outdated.) If you think we
are making a mistake by going with wired versus wireless, please let me know
your thoughts.

I'm assuming that I need to make sure that I purchase a router that states
clearly that it will work with Windows Vista?

Thanks again.
 
Barb,

Go ahead and ignore that previous post with respect to the question about
platform compatibility. I already contacted the company directly to get
information -- thanks.

But if you would like to weigh in on the wired versus wireless question,
that would be great. =)
 
Barb,

Go ahead and ignore that previous post with respect to the question about
platform compatibility. I already contacted the company directly to get
information -- thanks.

Unfortunately MS chose to make the default that Vista takes advantage
of some late changes to the protocols and to not make Vista as
backwards compatible as it could be. So, XP has better connectivity
(and they call Vista an "improvement". LOL).
But if you would like to weigh in on the wired versus wireless question,
that would be great. =)

Wireless connections are secure as long as you set the router to use
WPA security with a reasonably difficult key (password). If you are
already wired, or have systems that are hard wired, you can continue
to use those - but wireless is a nice convenience.

As for a "vista compatible" router, good luck. The half dozen that are
on the Vista list are not sold in retail stores and/or not used by
ISP's. Buy something popular and there will be plenty of support for
it out in the real world.



You could look for a
 
Thanks for the info, Bob.

Here's an additional follow-up question -- one that will tell you just how
long it's been since the last time we even thought about purchasing a router:

I'm assuming that with a wireless router you need computers that are hooked
up with WiFi cards? One of our computers does have a WiFi card, the other
doesn't.

Thanks!
 
I completely bypassed the router today, yet the problem has occurred on 2
separate occasions. Most recently it occurred for about 3 minutes (this was
within just the last 30 minutes).

So it's got to be something besides the router. But what is strange is that
ever since I have bypassed the router, the problem has decreased
significantly -- again, occurring only 2 times today.

Looking forward to any ideas. Thanks!
 
can you post the text output of ipconfig /all?
http://digitalmediaphile.wordpress.com/ipconfig-all-how-to-get-text-output/

also, please check event viewer around the time you lost
connectivity.

as for your question on the other reply, for wireless, use WPA2 for
the best security, or at minimum WPA with a strong random
passphrase.

I completely bypassed the router today, yet the problem has occurred on 2
separate occasions. Most recently it occurred for about 3 minutes (this was
within just the last 30 minutes).

So it's got to be something besides the router. But what is strange is that
ever since I have bypassed the router, the problem has decreased
significantly -- again, occurring only 2 times today.

Looking forward to any ideas. Thanks!
--

Barb Bowman
MS-MVP
http://www.microsoft.com/windowsxp/expertzone/meetexperts/bowman.mspx
http://blogs.digitalmediaphile.com/barb/
http://digitalmediaphile.wordpress.com
 
WPA2 is the best wireless security available. If your equipment does
not support WPA2, then WPA with a strong random passphrase. Change
the SSID from the default and don't use anything personally
identifiable.

But if you would like to weigh in on the wired versus wireless question,
that would be great. =)
--

Barb Bowman
MS-MVP
http://www.microsoft.com/windowsxp/expertzone/meetexperts/bowman.mspx
http://blogs.digitalmediaphile.com/barb/
http://digitalmediaphile.wordpress.com
 
Windows IP Configuration

Host Name . . . . . . . . . . . . : Voodoo
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : gci.net

Ethernet adapter Local Area Connection 4:

Connection-specific DNS Suffix . : gci.net
Description . . . . . . . . . . . : NVIDIA nForce Networking Controller
Virtu
al #2
Physical Address. . . . . . . . . : 00-04-4B-05-A1-5C
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::fc7b:9fa:d0b:960d%28(Preferred)
IPv4 Address. . . . . . . . . . . : 24.237.248.237(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.248.0
Lease Obtained. . . . . . . . . . : Monday, September 08, 2008 12:36:53 PM
Lease Expires . . . . . . . . . . : Monday, September 15, 2008 8:17:45 PM
Default Gateway . . . . . . . . . : 24.237.248.1
DHCP Server . . . . . . . . . . . : 209.165.131.45
DNS Servers . . . . . . . . . . . : 209.165.131.12
209.165.131.13
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Local Area Connection* 6:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.gci.net
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 7:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 9:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.gci.net
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 10:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 6TO4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 13:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 6TO4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 16:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.gci.net
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 22:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.gci.net
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 23:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.gci.net
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 25:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : gci.net
Description . . . . . . . . . . . : isatap.gci.net
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 26:

Connection-specific DNS Suffix . : gci.net
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #3
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2002:18ed:f8ed::18ed:f8ed(Preferred)
Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301
DNS Servers . . . . . . . . . . . : 209.165.131.12
209.165.131.13
NetBIOS over Tcpip. . . . . . . . : Disabled
 
you might want to try unbinding IPv6...
http://digitalmediaphile.wordpress.com/ipv6-how-to-unbind-from-a-nic-in-windows-vista/

Windows IP Configuration

Host Name . . . . . . . . . . . . : Voodoo
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : gci.net

Ethernet adapter Local Area Connection 4:

Connection-specific DNS Suffix . : gci.net
Description . . . . . . . . . . . : NVIDIA nForce Networking Controller
Virtu
al #2
Physical Address. . . . . . . . . : 00-04-4B-05-A1-5C
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::fc7b:9fa:d0b:960d%28(Preferred)
IPv4 Address. . . . . . . . . . . : 24.237.248.237(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.248.0
Lease Obtained. . . . . . . . . . : Monday, September 08, 2008 12:36:53 PM
Lease Expires . . . . . . . . . . : Monday, September 15, 2008 8:17:45 PM
Default Gateway . . . . . . . . . : 24.237.248.1
DHCP Server . . . . . . . . . . . : 209.165.131.45
DNS Servers . . . . . . . . . . . : 209.165.131.12
209.165.131.13
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Local Area Connection* 6:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.gci.net
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 7:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 9:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.gci.net
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 10:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 6TO4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 13:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 6TO4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 16:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.gci.net
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 22:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.gci.net
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 23:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.gci.net
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 25:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : gci.net
Description . . . . . . . . . . . : isatap.gci.net
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 26:

Connection-specific DNS Suffix . : gci.net
Description . . . . . . . . . . . : Microsoft 6to4 Adapter #3
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2002:18ed:f8ed::18ed:f8ed(Preferred)
Default Gateway . . . . . . . . . : 2002:c058:6301::c058:6301
DNS Servers . . . . . . . . . . . : 209.165.131.12
209.165.131.13
NetBIOS over Tcpip. . . . . . . . : Disabled
--

Barb Bowman
MS-MVP
http://www.microsoft.com/windowsxp/expertzone/meetexperts/bowman.mspx
http://blogs.digitalmediaphile.com/barb/
http://digitalmediaphile.wordpress.com
 
I completely bypassed the router today, yet the problem has occurred on 2
separate occasions. Most recently it occurred for about 3 minutes (this was
within just the last 30 minutes).

Are you saying that you are plugged directly into your cable modem?

If so, and it is still dropping the connection, the acid test would be
to plug in a different computer and do the same test. If it still
drops, then it's either your cable modem or a problem on their line
(often it's the line from your house to the pole).

So it's got to be something besides the router. But what is strange is that
ever since I have bypassed the router, the problem has decreased
significantly -- again, occurring only 2 times today.
It's sounding like a signal quality problem to me... but try the test
above.
 
Hi Bob,

Yes, we are plugged in directly to the cable modem. In trying this with a
different computer (a laptop) we have no problems whatsoever. It's this
desktop (which is actually fairly new) which is having the signal problems.

Very strange indeed...

Thanks for your time!
 
Hi Barb,

This new question helps to explain what has been going on with the loss of
the Internet for 3-5 minutes at a time. I finally found an ISP technician who
is able to fill me in.

It seems that the ISP has changed their cable Internet operations where they
are now requiring a specific DNS server address. If you allow the computer to
find the address automatically, you run into problems (such as the ones I
have been experiencing for too long now).

I have no idea why the ISP changed their technical specs on their servers,
but they simply said that if you try to access a few too many webpages all at
once, the system will kick you off for 3-5 minutes at a time.

http://www.microsoft.com/communitie...301-9813-2a2497c20996&lang=en&cr=US&sloc=&p=1
 
I see Steve gave you the answers. I am very curious as to who your
ISP is.

It seems that the ISP has changed their cable Internet operations where they
are now requiring a specific DNS server address. If you allow the computer to
find the address automatically, you run into problems (such as the ones I
have been experiencing for too long now).

I have no idea why the ISP changed their technical specs on their servers,
but they simply said that if you try to access a few too many webpages all at
once, the system will kick you off for 3-5 minutes at a time.
--

Barb Bowman
MS-MVP
http://www.microsoft.com/windowsxp/expertzone/meetexperts/bowman.mspx
http://blogs.digitalmediaphile.com/barb/
http://digitalmediaphile.wordpress.com
 
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