Fixing packet loss and disconnections on Unifi Gateway device Version 4.1.1.0

If after you complete your upgrade on your Unifi Gateway device to Version 4.1.1.0 you see ISP Packet Loss and Internet Disconnected messages, this may be being caused by an issue relating to the non-completion of the upgrade from traditional to Zone based firewall rules.

To resolve this issue visit the site settings Security then Firewall tabs, and complete the Firewall Rules upgrade, this should resolve your issues. No need to reboot the device!  

There are also issues relating to the Wireguard server service. You may just need to pause and restart your server from within the configuration menus for VPN Server.

If this doesn’t work, you may need to do a firmware downgrade to version 4.0.20 to resolve your issues.