NSX-T UI shows error message
Write operations are temporary blocked (Error code: 401)
The compute manager / virtual center will likely show no issue for registration/connection status with NSX-T UI
VMware NSX
NSX-T appliance restore requires healthy connectivity with the compute manager. The restore of NSX-T appliance without healthy communication with the VC server may cause write operation to fail. The following may cause issue for healthy connectivity between NSX-T and virtual center.
a. Network connectivity from NSX-T appliance to virtual center server
b. Name resolution issue
c. Mismatch of password (The password for the virtual center contained in NSX-T backup and the virtual center server current password are different)
Before the restore of the NSX-T appliance make sure
a. Network connectivity between the NSX-T appliance and virtual center server
b. Matching password for the VC account.