Resolved Login interface cannot be accessed from Plesk

[dicker]

Server operating system version

Ubuntu 22.04.3LTS

Plesk version and microupdate number

Plesk Obisdian 18.055 Update 2

Hello,
As of today, I can no longer access the Plesk login interface with my laptop.
With a cell phone it only works without wifi. As soon as I turn on wifi, the Plesk login interface is no longer accessible.
I was able to enter the IP of the laptop as a trusted IP. But it still doesn't work.
Turning off fail2ban didn't work either.
Error message
The website is unavailable Hostname's response took too long.

 

[dicker]

SSH access works normally.

 

[dicker]

It's been dealt with. For whatever reason I needed a new INternet IP. Restarting the router solved the problem.

 

[Peter Debik]

Fail2Ban on your server has probably banned your IP address. This happens when frequent wrong login attempts are done.

 

[dicker]

It wasn't blocked. I also turned off fail2ban. That didn't work either.

 

[Peter Debik]

How do you know it wasn't blocked? When you restarted your router it got a new ip, and that new ip is not banned. Do you know the previous ip and have you searched /var/log/fail2ban.log for that old ip?

 

[dicker]

I figured it out with my cell phone without wifi. Then I checked whether the IP was blocked. But it wasn't and there was nothing in the log file. Even when I turned off fail2ban it didn't work.