Pfsense client failover

Hi, Does anyone please help me to how to config failover from a pfsense OpenVPN Client with dual wan.
On Server has single WAN and Client site has Dual WAN. How to setup failover from clients site with dual WAN to single WAN Server site?

Set the client to auto reconnect if the connection fails.

Hi Tom,
Where do I set the client to auto reconnect?

Depends on the client, is it another pfsense or a Windows workstation?

Thank you for respond but I figure out the issue. Thank you