firstname.lastname@example.org sounds good, keep us posted, this thread can be very useful given the unwillingness of TAC or anyone else to acknowledge the defect or share any potential remedies..
Regarding CSCvd89994 - it's a dup of CSCvd79745. which is fixed in 8.2MR5esc and 8.2MR6. (Btw 8.2MR6 i.e. 8.2.16x.0 should release to CCO very soon.)
I will note that Cisco development does not support WPA2 + MAC filtering + WebAuth ... so if that's what you're doing ... then it's expected not to work.
Hope this helps,
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