01-29-2015 07:57 AM
That means errors on the channel reached the ARM Error Threshold, so the access points changed channel. In the short term, you can prevent this by raising the ARM Error Threshold from 50 to 90%:
You might also want to open a TAC case to determine if the errors are real and if the threshold numbers should be adjusted further.
*Answers and views expressed by me on this forum are my own and not necessarily the position of Aruba Networks or Hewlett Packard Enterprise.*
ArubaOS 8.3 User Guide
InstantOS 8.3 User Guide