I have remote users setup with WPA on linksys wireless routers who use the vpn client to connect to an asa5510. When they connect to the asa via a wireless connection (with excellent signal strengh), the results are unstable meaning some can connect and have no issues and others have slowness. When I have the affected users connect to the router with an Eth cable, it's all good. I know the WPA adds some overhead but is there some other explanation?
I have this problem too.