TCP/IP Corrupt?

I was using a Mac G3 with OS 8.6. For some unknown reason I can no longer access the internet - nothing was changed from the previous working date. Are files corrupt? The only way to resolve this is a clean install of the system - any simpler ways of resolving. I use another G3 on the same network and its fine.
tmischukAsked:
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rbrCommented:
Who did you connect to ethernet. Via a router, via ppp. Which ppp? Use the Apple System Profiler to check your network settings.
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tmischukAuthor Commented:
Edited text of question.
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tmischukAuthor Commented:
I connect to the internet via a @home cabel modem (really a router) networked through a 4 port 10BT hub. TCP/IP has been set correctly and the same setting work fine on another computer (the only change being the IP address). I can see that computer on the network.
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rbrCommented:
Are the settings displayed in the System Profiler. What are your IP-Addresses. (check carefully your umask and gateway entries even I think you have done this already). Can you access the interent via ip-numbers? Change the position of the RJ-45 cable in the hub.

If all of them won^t work I think you must do a clean install of your system.
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adtxCommented:
Throw away these 2;
1. MACTCP DNR
2. TCP/IP Preferences

Restart..manualy input your settings. This should work. If not let me know.

ADXT
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tmischukAuthor Commented:
Sorry, I really thought throwing the files out would work, but it did not. I have confirmed the cables work. I took another Mac and installed with the same configuration and it worked. Here are current set-ups:

AppleTalk
Installed:      Yes
Active:      Yes
Version:      60
File sharing:      is off
Default AppleTalk zone:      Not available
Active network port(s):      Ethernet built-in
This network:      65280
This node:      93
Hardware Address:      08.00.07.B6.C9.C0
Router:      <not available>

TCP/IP
Installed:      Yes
Active:      Yes
Version:      2.0.3
Personal Web Sharing:      is off
Multihoming:      is off
Netmask:      255.255.252.0
IP address:      24.112.237.156
Default gateway address:      24.112.236.1
Domain:      wlfdle1.on.wave.home.com
Name server address:      24.2.9.33

Help if you can
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asdukCommented:
Did the cable company issue you with a set of IP addresses?  What is the set-up on the mac that works?  I can't work out quite how the cable company are dividing that ubnet up...
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tmischukAuthor Commented:
Here are the specifications, for the working Mac.  By the way since this case was opended I have re-installed the system and all works fine...

AppleTalk
Installed:      Yes
Active:      Yes
Version:      60
File sharing:      is on
Default AppleTalk zone:      Not available
Active network port(s):      Ethernet built-in
This network:      65461
This node:      49
Hardware Address:      00.50.E4.46.F5.6E
Router:      <not available>

TCP/IP
Installed:      Yes
Active:      Yes
Version:      2.5.2
Personal Web Sharing:      is off
Multihoming:      is off
Netmask:      255.255.252.0
IP address:      24.112.237.216
Default gateway address:      24.112.236.1
Domain:      wlfde1.on.wave.home.com
Name server address:      206.186.135.3
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asdukCommented:
Must have been a corrupt networking extension then...

If everythings okay, why not either delete this question, or accept one of the answers.

Ta.
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tmischukAuthor Commented:
Thanks for all your help on this one...
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