Cisco Bug: CSCvh77308 - Sometimes 11r roam fails with iphone 10
Nov 15, 2018
- Cisco 5500 Series Wireless Controllers
Known Affected Releases
Symptom: Sometimes 11r roam fails with iphone 10 Conditions: 1) Have a wlan with FT enable, with over the ds disabled and PMF set to optional . 2) Now connected iphone 10 client and seen client got connected fine in FT mode . 3) Have 2 AP3800s configured in local Mode . 4) Now Roam the client to target AP and seen client fails to roam and seen the following messages : *apfMsConnTask_6: Jan 30 16:53:54.461: [PA] 54:33:cb:b2:c0:ae MIC mismatch *apfMsConnTask_6: Jan 30 16:53:54.461: [PA] 54:33:cb:b2:c0:ae Setting client ReasonCode from (122) to (236) *apfMsConnTask_6: Jan 30 16:53:54.461: [PA] 54:33:cb:b2:c0:ae Dropping (Re) Association Request frame as FTIE MIC validation failed for the client. *apfMsConnTask_6: Jan 30 16:53:54.461: [PA] 54:33:cb:b2:c0:ae 11r FT MDIE verification failed on WLAN Also sometime roaming fails without this reason ,Please see the attached capture case1 (above is case1) and case2 . Seen in both the cases when roaming fails we see directly messages : Updating 11r vendor IE ,though in success case we get mostly : Doing preauth for this client over the Air .
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