Broken LAN communication after MultiWAN implementation.

[bobbythomas]

Hi All,

I am facing all sort of issues after implementing MultiWAN. I have opened another post regarding Freeradous recently and the issue might be related to this. After MultiWAN implementation everything works for a while and then communication from LAN to the Firewall breaks. I am only able to access the services mentioned in the antilock out rule, all other communications fail and I believe that was the reason I was having problem with Freeradius(still having the issue). If I reboot, after bootup it works for a while and then all communications fail, cannot access internet from LAN, cannot communicate with the firewall (other than ssh,http,https), then after a while the internet connection restores and MultiWAN works but not as I have configured (MultiWAN with loadbalancing and failover), only loadbalancing works.

I am running the firewall in the proxmox vm. The WAN and LAN come through a single link(trunk port) and proxmox assigns corresponding WAN vlans to virtual interfaces for firewall. Everything was fine before MultiWAN implementation, but now my LAN to firewall communication breaks. I have configured the LAN rules exactly as mentioned in the documentation guide. Tried rolling back to a previous snapshot and tried configuring MultiWAN,but same result. Thinking of doing a clean install but I need more information regarding config backup. Will it backup all the configs including passwords, rules and interfaces?

Thanks in advance,
Regards,
Bobby Thomas

[bobbythomas]

Update...

Once the issue starts, I am able to ping the devices in the local LAN but not vice versa.

[bobbythomas]

Update 2

I created a new rule under the LAN DNS rule to allow all traffic to firewall and it worked. Need to figure out why failover/loadbalancing not working as intended.

I believe you will need to add this rule with the MultiWAN rules or else the traffic to firewall might get dropped due to the implicit deny.