I just purchased a Compaq laptop with built-in 802.11g wireless. I also installed a Linksys Wireless G four port router/access point.
I have three PCs in the network - the wireless, running Win XP; another laptop, wired, running Win 98; and a desktop, also wired, running Win 98.
Each machine - including the wireless - can access the Internet with no problems. And the two hardwired PCs can see each other with no problem. But those two machines can't see the wireless Compaq, and vice versa. The problem seems to persist even when I plug an ethernet cable into the wireless machine, but I didn't actually "disable" the wireless part, so maybe it was not actually using the hardwired connection.
By the way, the Compaq accesses my wired office network (using an ethernet connection) just fine.
Bill - thanks for the response. The problem turned out to be Zone Alarm, which had also caused some other network problems that I couldn't understand. I have been running ZA for years, but apparently some recent upgrade changed the way it handles network connections. No Zone Alarm - instant network connectivity.