@Aadil786 

Hi, 

Aadil786 wrote

Failover not working primary wan up but failover use backup link

How to manage this issue?

Firstly, please ensure you configure the Link Backup function correctly.

Enable Load Balance must be enabled if you want to configure Link Backup. Otherwise Link Backup won’t work normally.

Secondly, the Link Backup function is based on the testing result of online detection.

To get an accurate testing result, we suggest you choose the manual mode and configure the destination IP address by yourself.

If you still have trouble, you can post some pictures of your configuration so that we can check it together.