assoc failed - Avaya 3641

[robertw1984]

hi all,

i have an avaya 3641 wireless IP phone and when i configure it via putting in the details in "network config" -

phone IP - enter ip here
default gateway - enter ip here
subnet - enter ip here
call server IP - enter ip here
AVPP IP - enter ip here

SSID - enter SSID name

Security - WPA2-PSK - enter in passphrase

Reg Domain - select 02

when i enter in these settings for all the 3641 phones we have they all work, they connect to the network and i can send/recieve calls

but one phone has an added extra line "file servers > TFTP server IP", i enter in the IP address of our file server (which is our CM server) but when i restart the phone for all the settings to kick in, it gives me an ASSOC failed and a bunch of letters/numbers

any help please

cheers,

rob