Wireless connectivity is down since firmware upgrade to 10.11.01.
End-user connection issues after an upgrade to 10.11.01.
ExtremeWireless appliances and Access Points.
Firmware 10.01.04, 10.11.01-GA.
The tech support review did not show any individual configuration failure during the upgrade. Post firmware review for 10.11.01 showed some areas where possible configuration writes could produce this issue (but may not happen in all upgrade cases).