Unifi UDM failover

[nicholab]

On a Unifi UDM I am trying to:

 

I am trying to get the failover WAN working correctly for office A..
Office A needs to contact a DNS server at office B on the 192.168.40.0/24 range
I have set up two seperate IPSEC Site-Site VPN tunnels
tunnel on WAN1 has distance of 30
tunnel on WAN2 has distance of 40

Both have a static route to 192.168.40/24 however when i tested the failover this morning, it didnt seem to realise that WAN1 was down and continued trying to use tunnel on WAN1 for that subnet instead of the tunnel on WAN2

Static route is in place for both VPN tunnels to 192.168.40.0/24

 

Further tests showed that disabling the tunnel using WAN1 and trying to just use the tunnel on WAN2 did not route the traffic whatsover.

 

Had anyone done this on a Unifi UDM?

 

[ZeroHour]

What firmware are you using and Network version?

 

I have not done that but Network 9.1 in RC fixed a lot of weird issues (especially with Apple server downloads strangely) and I am expecting OS 4.2 to go RC soonish.

[nicholab]

Router version 4.1.22

[ZeroHour]

Yeah thats the latest stable.

If you open network it should say on the left side of the overview. 9.1.120 has gone general release now it appears over RC.

If I recall there were some failover WAN1/2 change with 9.1.X but I dont know if that will fix it.

There are so many quirks with Unifi tbh.