Media for cable modem issue

cable modem issue

Was wondering if anyone came across a similar issue. I have a cable modem hooked up to a wireless router, and serve the connection out to multiple machines. This has worked great for about 3 months.

Recently, I noticed that it would drop the connection about once a day. I would reset the modem (physically unplug/replug back in) and all would be fine. It started happening about 3-4 times a day, now it is happening all the time.

I have WEP security on the wireless, and can access my LAN just fine, just can't connect on any computer out to the internet until I reset my modem.

Both machines are using wireless NICs, any ideas in how to troubleshoot/fix the problem? It is kinda frustrating to have to reset about every half hour.

Could it be a problem with Time Warner? My wireless Linksys router? I don't think it has to do with the computers, because both are experiencing the same problem.

Thanks for any help you can provide, JJ