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Internet access Problem possibly gateway

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5 replies

by jr_oneputt

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I have a small network, peer to peer, a Gnet Internet gateway attached to the main switch for the network. All desktops are fine with the internet access except 1 which is a Windows ME Hp 7920. It will access Internet for browsing, but cannot get out to update Virus scan nor will it connect to Isp for e-mail. Yet all others on the network have no problem with either of these events. Looking for any ideas.

5 replies

by john k winiger

This is not a problem with the gateway, if it was you would not be able to browse the web. The first thing to try is to ping both of the addresses you are trying to get to from a does prompt using the same name or ip that is failing. If the fail to ping this way then the problem is there side is down. If they do ping then check to see if there is an access problem. I know that some ISPs have different mail servers based on if you connect over the internet or dail-up. As for the virus scan, which one is it?

by elomis

Hhmmmm, the answer isn't really in whether you can ping resources on their side or not, but more in what is getting through the gateway and how.
As you may or may not be aware of (either at all, or considering relevant to this problem) all information across tcp/ip runs on ports, the web runs at port 80 (normally)and you have no problem here.
"Phone-home" or "live-update" style programs may well use ports that your configuration doesn't support, so here's what you do:

1) Use the "netstat" command to see what sort of connections on what ports are active.

2) Determine what method you are using to connect through your gateway, if it is something like ICS through the Home Networking Wizard in ME consider using a program like Proxy Plus instead that allows you to route ALL traffic, not just port 80.

3) Make sure any firewalls (including ones on your side) are configured to allow traffic through properly., not just on ports 80, 23, 110 and 25.

Hope this helps.

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