Connecting a Bi-Quad antenna

SOURCE: compatibility between linksys WRT54G Router and Intel PRO/Wireless 3945ABG Network Driver

from what you say, it sounds as if you have your wired and wireless card connected at the same time. This will confuse the router as it is trying to give two different ip addresses to the one pc, which it cannot do. If you are using the wireless adapter, make sure you dissable the wired adapter as the router will continually look for the wired ip address while allocating your wireless adapter causing instability. Next ensure you have a good clear signal from router to notebook as this can obviously cause problems. Lastly ensure that the wireless cards TCP/IP properties are set to obtain ip address automatically, especially if your router is DHCP enabled to allocate ip addresses automatically.

SOURCE: wireless network broken, access to WRT54G & Motorola 2210-02 via http.. denied

I have att yahoo dsl which I installed about a year ago. The process required bridging the ADSL Modem (in my case a speedstream 4100) and accepting dynamic IP addresses and configuring PPPoE on the WAN side of my Linksys router. The ATT support person walked me through the entire process over the phone even though I was comfortable with making the Linksys configuration changes as I had to do the same in China without technical support. The modem configuration was no more difficult than the router configuration as it was performed from a web browser too. The biggest warning was that to reverse the modem change (if desired) required use of a reset button because the web interface was disabled as a result of the configuration change. My advice to you especially if you are willing to attach the Linksys router to the telco modem is to contact the ATT highspeed DSL support line and see if they will walk you through it like they walked me through it. Reviewing your Linksys User's Guide and understanding the configuration of that device would probably be appreciated by the ATT Support person as well as assuring you can access the Linksys router to configure it during the call.

SOURCE: 360 mtu test keeps failing

Access the routers setup page by typing 192.168.1.1 (ip address of the router) on the address bar on IE.

then on basic setup page at the bottom part of the page you will see MTU normally its on auto,
to change the value set it to manual. ask your isp what is their prefferred value for the mtu you can go as high as 1300 to 1500.

SOURCE: Cannot connect xbox 360 to wireless router

If you use DSL I would also check to make sure you are not being port blocked by your ISP. Some will block you if you exceed bandwidth on a particular port rather than throttling you or shutting you down entirely.

SOURCE: Cannot connect wirelessly to my Linksys WRT160n, but wired works

Get Network Magic ... download for evaluation.

This is a tremendous network management tool well worth the $. If you dont pay, you can still use most features.

Get it and use it to get your connection going at least.

Let me know what happens

a