I have a Linksys WRK54G wireless router. I spent probably 500 hrs on the phone with support, and finally got it working using tips from a friend. Use the info if it helps...
Our network has only 2 computers, an HP desktop hardwired to the router, and the Emachines laptop is either hardwired or wireless if I'm in another room. Here's what worked for us:1) Set up all your connections with static IP's. "Obtain IP automatically" never seemed to keep us connected. The only fix was to UNPLUG the router to reset it several times a day. Don't know what the reset button is supposed to do!
2) Going to the linksys configuration website 192.168.1.1, in the wireless security tab, enable MAC addressing. We then programmed in all the MAC addresses of the router, both LAN connections, and the wireless card (we got these "physical addresses" by going to each computer's DOS prompt and typing "ipconfig/all" according to my notes).3) For some reason, in the "wireless network connection properties" screen, if I click the "Use Windows to configure my connection" option, connectivity seems to go down hill. If I unclick it and allow the Linksys Wireless G software to handle everything, I have fewer problems.
So that keeps our connectivity going. But now I have a new problem.
I brought my work laptop home (a Compaq NC6000). It's got built in wireless card that works just fine at work. And at home, "view wireless networks" shows ours, and two of our neighbors' networks. I can connect to anyone else's, but not my own. I didn't even need to type a WEP key to access my neighbors networks, though they are showing as WEP encryted.
I keep our encryption at 64 bit WEP, and tried both typing in the WEP key and clicking the "it's provided for me" box, but no dice. Even when I disabled WEP temporarily, I couldn't get connected. I thought for sure that would work.
I also tried every combo of either Linksys or Windows configuring the router, in case that makes a difference. Nothing works. I tell it to connect, the dialog box closes like something's happening, and then a pop-up tells me I'm not connected, but that there are "wireless networks available!" I guess I just can't have the one I want...