OPNsense Forum

English Forums => High availability => Topic started by: andrema2 on August 19, 2022, 08:12:46 pm

Title: [SOLVED] The backup firewall is not accessible or not configured
Post by: andrema2 on August 19, 2022, 08:12:46 pm
Hi all

I have a HA setup working for more than an year. Today I realized that the HA Status is giving this message "The backup firewall is not accessible or not configured." It was not like that before.

I can ping each FW from each other using the SYNC interface. There is a direct cable between the two FW.

I rebooted both FW and the issue still happens. Not sure what else can I do.
Title: Re: The backup firewall is not accessible or not configured, but I can ping both
Post by: andrema2 on August 21, 2022, 06:18:16 pm
Adding more information.

I changed the IP address from both SYNC interfaces. Then when I tried to change the IP address of the slave on the High Availability Settings page it doesn't stick. I push save it refreshes and the old IP comes back. I can change the synchronize interface and it does stick. I tried with 3 different browsers to make sure it's not the cache with the same results.

I also tried to clean the field and leave it blank but the old IP comes back.

On the slave FW everything works as it should. I was able to change and save the configuration.

I reseted to the defaults and restore the config but the issue remained
Title: Re: The backup firewall is not accessible or not configured, but I can ping both
Post by: Patrick M. Hausen on August 21, 2022, 08:10:24 pm
What are your firewall rules on that sync interface?
Title: Re: The backup firewall is not accessible or not configured, but I can ping both
Post by: andrema2 on August 22, 2022, 07:36:01 pm
I saw your other post and realized that I had the same issue. Once I allowed the SYNC interface everything was ok