I have a wireless network of 2 Macs (PB and iMac G5), WinME PC, and a Linksys WRT54G router. Until recently I always ran an open network, but decided to try encryption. Ever since I changed configurations to WPA Pre-Shared Key TKIP, I have been having issues (I never had any kind of problems before). Both of the Macs will seem to drop the connection every one in a while, and not reconnect without manual connection. Power-cycling the router will also bring back the connection. I expect that there is a much newer version of router fw available (currently v3.03.1), but I really hate to update it in case anything goes wrong. The disconnects get much worse if I am actively transferring large files (about 15 minutes), but normally it may run OK for several hours up to a day or more. Has anybody else experienced something similar? Any help would be appreciated.