Error (User Center: unknown user name or password)

[Sangeeth_N]

One of the gateways [running with Gaia R77.30] in cluster is in problem state because of showing the error - "Error (User Center: unknown user name or password)" in Smart Dashboard. 

I had came across the sk140712 which is for R80.10, R80.20. Is there anything related to R77.30 related to this issue.

[PhoneBoy]

Since the fix requires a hotfix to resolve, I would check with the TAC.
It's possible the issue also exists in R77.30 as well.