Multiple old SG firewalls - Too many failed logins from same IP

Hi there, How many chances to see all my customers SG firewwall with "Too many failed logins from" same IP ? I have only 4 customers left on SG models and all of them have the same problem, starting...
[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...
Modify sub domain, port and path of URL

First let me explain the reason for my question. I am runnin an internet radio station country-radi eu and want to use ports 80 and 443 for streaming the audio, because in public networks ports like 8000...
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...