MX95 WAN 2 not working

[Willrockhopper]

Hi, I've got an MX95 which is refusing to acknowledge an active connection on port 4, which is serving as a secondary WAN link, the primary WAN is an SFP on port 1. 

I've tried disabling WAN 2 on the dashboard and re-enabling it with no success. 

On the ports diagram port 4 is lit up green and shown as operating at full duplex, etc, but no WAN 2 link is recognised or active.

The 'enable backup WAN on port 4' function is disabled. I did try it but it looks as though it makes port 4 into a 'WAN 3' and assumes you already have links on ports 1 and 2.

Any ideas?

[alemabrahao]

On the MX95, WAN 2 is on port 2 by default.
Port 4 cannot act as WAN 2 unless you explicitly configure it to do so using the “Backup WAN on port 4” option in the dashboard. If you enable "Backup WAN on port 4", port 4 becomes WAN 3, not WAN 2.

[Ryan_Miles]

That is not accurate. Port 3 and 4 don't need to be specifically configured to be used. You do however need to ensure there is not a SFP in port 2. Presence of a SFP will place the port as active and make the respective paired port unusable.

https://documentation.meraki.com/MX/MX_Overviews_and_Specifications/WAN_Behavior_on_MX75%2F%2F85%2F%...

The feature you're speaking about is using port 4 as a backup third WAN. https://documentation.meraki.com/MX/MultiWAN_Backup_Uplink

[Willrockhopper]

In that case, since I only have an SFP on port 1 and nothing on port 2, there should be no reason port 4 doesn't work?

I'll try a reboot out of hours and see if that changes anything. 

Thanks for clarifying the port 3/4 functionality. 

[ww]

Could you try to reboot the device. The behavior is a bit consfusion if for example before there was a sfp inserted 

https://documentation.meraki.com/MX/MX_Overviews_and_Specifications/WAN_Behavior_on_MX75%2F%2F85%2F%...

Did you also verify the wan4 provider works. For example connecting a laptop to that (new) wan provider router

[Willrockhopper]

I was hoping to avoid a reboot as they seem to take a long time to come up, but I may give this a go.

That truth table seems to indicate that if you have an SFP on port 1, then the only RJ45 WAN port you can use is 4 which is what I'm using, so a bit odd. Unless they've changed this logic in newer firmware (it is running 18.211.2)

[nicdc01]

Shouldn't take long if this is not the first boot. 
Anecdotally would say its no longer than 5 minutes.

[Willrockhopper]

Just a follow up to put this one to bed (a bit late I know). I needed to manually enter the connection details for the WAN2 link to come online. This is interesting as in my experience the automatic mode generally works for our other connections like this.