I am having the same issue at our location, but, i feel that i have not configured roaming correctly on the access-pomits, how does anyone know if fast roaming is configured correctly on all the access-points. and show command???
We experienced the same problem and here is the answer from cisco. Presently cisco ip phones do not support CCKM which is required for fast roaming. that means that everytime the phone moves from 1 access point to another it is going to be cut off from the wireless network for a second or a 2, many times leading to a call disconnect.
Cisco says that the phone firmware will start supporting cckm from june.
In the mean time I have a question as i can not use Leap ON MY IP Phone, because of disconnect issues.
i wanted to do open authentication for the 7920, but for security reasons only on mac address basis. but, it appears that i can not associate local mac-address authetication with a VLAN. That sucks!
I just want open authetication on voice vlan on my access-point for the 7920 and want only the phones to connect on the vlan, but i can not do local mac-address filter on vlan basis.
i do not want to do server mac-address authentication as it would cause delay just like leap.
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