We are facing an issue on our DEV Primary hub, and we are seeing communication issues on a frequent basis.
ihubrequest: nimSessionRequest 'hubup' failed: communication error (10.27.136.10/48002)-/TotalDevDxim/HCGSPA-PRDXIM01_TotalDevDxim/HCGSPA-PRDXIM01/hub (2)
Feb 2 07:10:23:103  0 hub: hubinfo forward: failed for /TotalDevDxim/HCGSPA-PRDXIM01_TotalDevDxim (communication error)
- hub v9.31
Release : 20.3
Component : UIM - HUB
Downgraded robot to robot_update_9.20_HF21.zip