intermittent firewall connection

Hi,

We recently deployed a brand new Sophos XG115W with the latest firmware SFOS 18.0.3 MR-3 but for some reason everyday the customer has to reboot the firewall and connection will be restored. I checked the events and nothing shows up except the attached screen capture

Sophos support really slow in responding and not a good impact for a new sophos admin like me. This is the first time our team decides to use Sophos for Customers.

Thanks

Jeff