I've been suffering with the same problem ever since the new firmware release. I reported it on a separate thread. But I do have a very interesting result. If I leave my pronto TSU9600 in the docking cradle I get absolutely no command failed messages. I've even cleared the diagnostic log of all the 450/405 messages and then used it for 24 hours - nothing new in the logs whatsoever. Up to now in trying to resolve the problem I've tried loads of things. Changing wireless security between none (just MAC security), WEP128, WPA; changing wireless channels (I already run the pronto on a standalone LAN connected to only the RFX9400 and a second ethernet port on my NAS for squeezeserver access); and I even tried rolling back the firmware on my devices (the main achievement being that I managed to brick my RFX9400 and had to replace it). None of these things have had any impact on the command failed messages. I haven't been able to run a DHCP server on my standalone pronto LAN, so I haven't been able to confirm/deny that that resolves the problem; but leaving the panel in the docking cradle seems to completely resolve things. I'm therefore left wondering whether this is actually a power management issue in the new wireless stack that came with the latest firmware update?

Can anyone else having the same problem try leaving their panel in the dock?