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Mobility Express is officially End of Life so Cisco support are unlikely to offer any help.https://www.cisco.com/c/en_uk/obsolete/enterprise-networks/cisco-mobility-express.htmlME was built on AireOS which is EOL:https://www.cisco.com/c/en/us/product...
There are a whole lot of bugs documenting these issues encountered by Cisco customers and confirmed by TAC.Take a look at this sample for example (including the 8.8 reference Leo mentioned).https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvk59536http...
That info is worthless @aleabrahao - yes it is allowed but it almost never works.
I've covered this on numerous older posts but inevitably the only way to get this done is to backup ME config, convert APs back to CAPWAP mode, upgrade to latest availa...
As the others have highlighted APSP1 (at least) is required.The SMU applies for 9800-L and 9800-CL if using Guest-Anchor mobility.They are both covered in https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9800-series-wireless-controllers/2...
@andrew.butterworth no, but if you're the original buyer of the AP from Cisco or an authorised partner/reseller then you can RMA using the LLHW https://www.cisco.com/c/en/us/products/warranties/warr-ltd-life-hw.html