I can systematically crash a wireless session between my WAG54G and my IBM T41 Thinkpad with a DLINK DWL-G650+ 54Mbps 802.11g card installed. If I transfer a large file from a desktop (hard wired) client to my laptop over the wireless, this seems to work okay, thoi I haven't tested exhaustively, so this could be a red herring. In the opposite direction, sending from the Wireless laptop to the wired desktop, I can always kill the link (lose association, can't see the WAG54G anymore. Have to reset the WAG54G to get it back) I'm running with 128 bit static WEP, Shared Key, Mixed mode, wireless broadcast disabled, Channel 11, MAC filtering off or on (makes no difference), Control TX Rate Auto, Beacon Interval 3, DTIM 100, Frag thresh 2346, RTS Thresh 2347, AP Isolation off, Management by Wireless i'face on (temp). Anyone else getting the same issues? I've logged this with Linksys.