I've problem with a WLC 2504. Some Clients like phones and Thin Clients get an IP 0.0.0.0.
Software Version is 22.214.171.124. Test with a Laptop seams to be OK. Some printers also got an 0.0.0.0.
Around 30% are not OK.
I also had the log:
Impersonation of AP with Base Radio MAC 00:yy:yy:yy:yy:yyusing source address of 00:xx:xx:xx:xx:xx has been detected by the AP with MAC Address: 00:yy:yy:yy:yy:yy on its 802.11b/g radio whose slot ID is 0
The problem is, I cannot go to 7.2 version because I have 2 x AP 1231 and 2 x 1242 AP's.
1231 AP's are not anymore supported in 7.2 Version.
Somebody an idea?