I have spent a day playing with the above and found the following\nproblems:\n\nThe IPAQ will talk to the WPC PCMCIA card (fitted in a Sony laptop)\nbut only of both are configured in ad-hoc mode.\n\nThe WPC will talk to the WRT router but only if the WPC is configured\nto infrastructure mode. The router itself has no config for ad-hoc\nmode.\n\nThe IPAQ will not talk to the WRT at all. (**)\n\nWe have tried it straight out of the box, with no encryption, with\n64-bit WEP, 128-bit WEP and nothing makes much difference.\n\nWe can get the laptop entering the WRT config (IE6 opening\n192.168.1.1) via the wifi port (the laptop has no ethernet port)\n\nThe best I managed was connecting another PC to one of the WRT's\nethernet ports (via a Linksys SD216 ethernet switch), opening IE6 on\n192.168.1.1, and opening the WRT config on that PC, and also this PC\nand the Sony laptop seeing each other via network neighbourhood.\n\nBut no luck with the IPAQ.\n\n(**)Just once or twice in the whole day we got all 3 (WRT, WPC, IPAQ)\nto appear together in the Linksys WPC config/diagnostic software but\nthat was it. It happened with the channel set to 10.\n\nThe whole wifi connection, even between the Linksys products, seems to\nbe pretty unreliable at the best of times.\n\nI also tried a different approach which I have used at both home and\noffice with Cisco 803 routers for years: set the router's ethernet IP\nto a fixed value, set each PC's IP to a fixed value, and on each PC\nset the router's IP as the gateway IP. DHCP disabled on all devices.\nThis is a perfectly reasonable setup for an office where a number of\nPCs access the internet via a router, and with the fixed IPs you\nalways know where you are. Has the WRT/WPC ever been tested with fixed\nIPs ("use the following IP address" under TCP/IP Properties under\nNetworking in Control Panel)?\n\nBut it didn't help, though I did find something odd: if one changes\nthe WRT's IP to e.g. 10.105.100.254 one can access its config on that\nIP OK (instead of on 192.168.1.1) but ONLY if DHCP is enabled on the\nWRT. If you disable DHCP on the WRT you cannot enter its config at\nall. (if DHCP is enabled on the router then the PC used for\nconfiguring it cannot have a fixed IP)\n\nI wonder if somebody has hard-coded the 192.168 ... IP in a few\nplaces, and I wonder if the WRT router has ever been tested with DHCP\ndisabled.\n\nThese items have been recently bought but perhaps everything needs a\nfirmware upgrade???\n\nCan anyone suggest anything?