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The original was posted on /r/ubiquiti by /u/mjt5282 on 2023-08-20 20:20:52+00:00.
I have a dual WAN ER12 (both ethernet fiber ONTs from different ISPs). I am running 50/50 active/active, with a wireguard UDP listening on standard port, 51820. Firewalls all setup. wireguard only works (UDP) on eth9 , when the ISP on eth9 stops working, I can't initiate a connection on the "secondary" eth8 ISP port.
I did a little googling and I found maybe there is a UDP routing bug on the edgerouter. I tried a one line change and my other wireguard site-to-site failed (as well as my WG self-hosted VPN).
Any suggestions?
I'd like to be able to wireguard into the "secondary" ISP's wireguard server when the primary goes down, mostly to trouble shoot and look at the LAN servers when I am away.
thanks