Wan-Link Manager shows wan down, but in reality its up

So you have an ISP router in front of your XG on this interface. Has the ISP performed a firmware/reset upgrade on the router which is blocking the ICMP traffic from your firewall?

Ian

No, no update to the ISP router. If i directly connect to the Router via my mobile/other laptop via lan to check the connection the internet is working fine.

Also, i would mainly want to know why its not allowing me tk change the IP in the WAN link manager. Is there some config inconsistency at the backend?

Log a support case.

Ian

Could this be some sort of  ARP problem? Maybe you could try to add a static entry:

1) go to the cli, ping your gw an get the MAC address:

ping 192.168.0.1

arp 192.168.0.1

? (192.168.0.1) at 33:44:55:66:77:88 [ether]  on Port2

2) Add a static entry via WebUI:

https://docs.sophos.com/nsg/sophos-firewall/19.0/Help/en-us/webhelp/onlinehelp/AdministratorHelp/Network/Neighbors/ARPNDP/NetworkStaticNeighborAdd/index.html

I feel like I had a similar issue where the gateway appeared to always be down when it obviously wasn't. (Didn't have any indication of loss of packets dropped, though.) I can't remember the exact solution but it was something like changing a setting on the gateway, changing it back, then saving and suddenly it was up. Like a corruption in a setting somewhere. Sorry I can't remember the details.

Hello Advait,

For the issue related to "Gateway failover rule couldn't be updated" you might be affected by NC-109120

As Rfcat mentioned, create a case and mention the NC above.

Regards,

I've had the same, it was a backend database problem - the solution offered was to delete and recreate the interface but as the site only has the one link and is remote it's not going to happen for a while (and doesn't cause any problems in this instance).

My Solution was to hit SAVE again under Interface configuration.

Yes, i was avoiding it since it would also delete all the rules associated with it, but ultimately i have deleted it and created the WAN interface again. Now the issue is resolved.

hitting the save button also worked for me to get the interface green again