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Yes, look at the cable.. layer one problems are very common.

In that case I would first check the dhcp server by plugging a working box or laptop in to the same switch port and see if anything can get an IP.. if that fails then look at your network. if the test box gets a good IP then rip out and reinstall the networking on the 2K suspect box.. make...

Try reducing the MTU on your client machine to 1360 and see if it makes a difference.. Remember that when a tracert dies the problem is at the next hop, not at the last one shown. Look at the logs for that router/firewall.

To really utilize the five IP subnet you will need to be able to assign them on the LAN side of your router. This is possible if you have a real router, like a Cisco SoHo or better. I do not believe the layer three switches like the netgears (that call themselves routers) have that capability...

If you want more detailed help send me the outputs from 'ipconfig /all' and 'netstat -nr' and I'll take a look at it for you.

You still haven't said whether it gave you a valid IP address with a valid reachable gateway. That is the very first step in troubleshooting.

You didn't mention if it obtained a dynamic IP address ok after you removed the static. Use ipconfig to check for a successful dhcp, make sure it got a valid IP address and gateway. Make sure you can ping the gateway. If that doesn't work remove the NIC card, reboot the machine, reinstall...

Of course the best USB security tool is a hot glue gun.. fill em up!

If you are an ISP providing wireless broadband to the public I would suggest you also need to configure your access points to deny peering and force clients to go through the gateway to communicate with each other. If you let your clients see each other bad things happen.

I suggest reducing the MTU setting on your router. Some websites (especially SSL sites) are very sensitive to packet fragmentation. This could be especially true if your problem connection is PPPoE authenticated.

OK, people are going to accuse me of spamming, but really I have no connection with what I am going to recommend. Take a look at the Allot Net Enforcer.. it is made to do exactly what you want to do from a simple GUI. For a 20mb link the box is fairly expensive, but it is really a sweet way...

Can you get email on this box? If so look at virii.. else examine your firewall.

There are many, many ways to do this. If you are using a Cisco Router then route-mapping will solve your problem. The trick is that this will only resolve the issue for outgoing traffic. For management of incoming traffic over multiple interfaces you will need to implement BGP routing...

Older Linksys routers are famous for problems. Before you invest a lot of time in to other solutions, go to Linksys, get the latest firmware and update the router. This fixes more Linksys problems than anything.

When it came to mail I found the best answer was to go to an appliance. Take a look at Mirapoint.. way lower admin cost and it does all the flavors of email, smtp, pop, imap, et.al.

If you haven't already done it I really like IPSentry .. the best bang for the buck out there imho. Easily in your price range.

I think the "expired" Norton Security is the key. Uninstall that and try again. Make sure you are not using proxy and that your firewall is not blocking. Having said that I hear this complaint often from my ISP customers. Eight times out of ten it is a virus that is intercepting DNS...

I like to use the DNS lookup tool at http://www.mob.net/~ted/tools/dns.php3 to check global convergence of DNS data. It is handy to be able to check from a selection of DNS servers. If it is a brand new domain name it should start propogating almost immediately. If you are changing an...

If I am not mistaken you can add your own permitted networks/IP's in to /etc/hosts.allow which is checked *before* hosts.deny. That way your can deny all and allow some.