Mobility ping and SSH errors after upgrade to 188.8.131.52
My memory may be incorrect, but I think the SSH rule error was a cosmetic bug and not related to the main problem, which I do remember well. Namely, the mobility connectivity problems. Those problems began after shifting a number of APs onto a lightly loaded controller. The mobility issues baffled everyone, and I finally just moved the APs back off the affected controller and the mobility issues went away. Moved them back again and the mobility problems did not return. It must have been some bizarre fluke.