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Hi Support,
I just arrived in a new company and I found the router TL-ER6020 with two wan in use.

Probably the former technician had decided to use this router for backup link, but what I can see is that if the primary link go down then only a manual intervention can wake up it.

My question is:

Is this a suitable router for backup link? And should be configured in a particular way? Eventually there is a specific documentation about this?

Many thanks