I am seeing a significant degrdation of applications using X11 forwarding when I connect over the wireless versus the wired lan on the back of the unit.
The ICMP latency is average 0ms, max 9ms, on the lan, as opposed to average 10ms, max 70ms, on the wireless.
This doesn't seem like enough of a difference to affect performance, yet something is. The client is using Cisco VPN through the 881w to a remote cisco router, and then ssh -X to a workstation on the remote network. Performance is bad when local client is on 881w wireless, but acceptable when local client plugs in 881w lan.