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[WARN-603] Let's Encrypt certificate renewal failed accessing Let's Encrypt service

I am getting this after doing some updates. It seems to be timing out. It is on Sophos UTM 9.720-5. It is a SG210. Any help or suggestions would be great or if you need some addition info let me know...
Automate VPN

HI all, I'm trying to configure my Sophos UTM9 firewall to automatically switch the VPN to the secondary line if the primary line goes down. I currently have two internet connections, with WAN1 (5...
Sophos SSL VPN

Can someone please tell me how i download a configuration page of my Sophos set up? Many thanks Daniel
Softphone (RTP) aus SSL VPN ohne Funktion

Hallo Zusammen, ich habe das Problem, dass bei hergestellter SSL VPN - Verbindung das Softphone unserer CTI-Software nicht funktioniert. Der Ruf wir am Empfänger signalisiert und der Empfänger kann auch...