Internet Access on small LAN

  • Thread starter Thread starter Kevin
  • Start date Start date
K

Kevin

Dear NG:
Windows XP Pro Version 5.1 (Build 2600.xpsp_sp3_gdr.080814-1236 : Service
Pack 3)
Internet Explorer Version: 8.0.6001.18702
No Spybot, No Ad-Aware
AVG free 8.5.323
D-Link DI-704

I have a small Ethernet LAN - 3 Win XP Pro machines - connected through
D-Link.

Computers A and B will connect successfully to the internet, however C will
not.

I can successfully connect to Computer C via Remote Desktop from either A or
B. This leads me to assume, that the problem is NOT a mechanical one.
However I admit that my knowledge of networking is limited.

If I Ping the Default Gateway from Computer C, all the packets time out.
100% loss.
However, I can successfully Ping Computers A or B from C.
If I Ping Computer C from either A or B, again all packets time out. 100%
loss.

DHCP is enabled on the D-Link and all computers. Computers A, B and C all
successfully retrieve IP addresses.

I'm stumped.

-Kevin
 
Dear NG:
Windows XP Pro Version 5.1 (Build 2600.xpsp_sp3_gdr.080814-1236 : Service
Pack 3)
Internet Explorer Version: 8.0.6001.18702
No Spybot, No Ad-Aware
AVG free 8.5.323
D-Link DI-704

I have a small Ethernet LAN - 3 Win XP Pro machines - connected through
D-Link.

Computers A and B will connect successfully to the internet, however C will
not.

I can successfully connect to Computer C via Remote Desktop from either Aor
B.  This leads me to assume,  that the problem is NOT a mechanical one.
However I admit that my knowledge of networking is limited.

If I Ping the Default Gateway from Computer C, all the packets time out.
100% loss.
However, I can successfully Ping Computers A or B from C.
If I Ping Computer C from either A or B, again all packets time out.  100%
loss.

DHCP is enabled on the D-Link and all computers.  Computers A, B and C all
successfully retrieve IP addresses.

I'm stumped.

-Kevin
Click to expand...

What are the DNS "server" IP addresses on each?
 
Dear NG:
Windows XP Pro Version 5.1 (Build 2600.xpsp_sp3_gdr.080814-1236 : Service
Pack 3)
Internet Explorer Version: 8.0.6001.18702
No Spybot, No Ad-Aware
AVG free 8.5.323
D-Link DI-704

I have a small Ethernet LAN - 3 Win XP Pro machines - connected through
D-Link.

Computers A and B will connect successfully to the internet, however C
will
not.

I can successfully connect to Computer C via Remote Desktop from either A
or
B. This leads me to assume, that the problem is NOT a mechanical one.
However I admit that my knowledge of networking is limited.

If I Ping the Default Gateway from Computer C, all the packets time out.
100% loss.
However, I can successfully Ping Computers A or B from C.
If I Ping Computer C from either A or B, again all packets time out. 100%
loss.

DHCP is enabled on the D-Link and all computers. Computers A, B and C all
successfully retrieve IP addresses.

I'm stumped.

-Kevin
Click to expand...

What are the DNS "server" IP addresses on each?

smlunatick,
Thanks for your reply.
ipconfig /all
DNS Servers 24.29.103.15 and 24.29.103.16 on all 3 machines.
-Kevin
 
What are the DNS "server" IP addresses on each?

smlunatick,
Thanks for your reply.
ipconfig /all
DNS Servers 24.29.103.15 and 24.29.103.16 on all 3 machines.
-Kevin
Click to expand...

Good! Then, in Control Panel, check the Firewall "status." Turn it
off on the "C" PC and test again. If it works, then the firewall is
set too "strictly."
 
Thanks everyone for your suggestions.
It turned out that the D-Link router was the problem. I switched it out
with a new router and I was operational in minutes.
I got quite an education in the past two days on troubleshooting a small
LAN. So all was not lost.
Thanks again,
Kevin
 
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