Scheduled backups of NSX manager might fails due to authentication failure on SFTP fileserver

Products

• VMware NSX

Issue/Introduction

Scheduled or manual backup of NSXT managers might fail due to authentication failure on SFTP fileserver as shown below

It also fails to load the previous backups taken from NSX manager 

Environment

4.2.0

Cause

"ssh_config" file present in /etc/ssh folder of NSX manager might have got changed or corrupted

Resolution

To resolve this issue, copy "ssh_config" file from /etc/ssh folder of working NSX manager in the same cluster to the NSX manager where backup is failing and check if the backup is showing correctly on NSX GUI