I have a Linksys WRT54G set up at home. I have one wired LAN port going to a D-Link switch, the Internet port going to a Terayon cable modem, and the WLAN is active in B/G mixed mode.
I also have a Dell Latitude D600, equipped with the Centrino chipset, and can connect to the Linksys box via 802.11b; WinXP shows the signal strength is Very Good or Excellent when in the next room from the router. The router has WEP enabled.
At random intervals, the Dell will suddenly lose the signal from the Linksys box, for no apparent reason and with no warning. The interval is completely random, and does not happen during any particular time of the day; sometimes, I can go a day or two without having any problems. It does not appear to be related to weather, either.
I've moved the Dell to sit *right next* to the Linksys, just one foot away, and have the same problem happen.
Sometimes the connection is reestablished within a few seconds, sometimes minutes, and sometimes I have to reboot to get it to reconnect. When the connection is lost, sometimes I can have XP scan for SSIDs and see mine (but usually can't get it to reconnect), sometimes not. I can occasionally see another SSID that is not mine, but can't connect to it. I wondered if perhaps interference from the other SSID was imparing my conenction, but this can also happen when I'm a foot away from the antennas.
I'm stumped. I'm frustrated, because the dropped connection kills my VPN connection, which screws up work in progress.
Can anyone please help? Any suggestions would be appreciated.