Pi-hole working, SSH and Ping aren't

[HeeeroYuy]

I need help.
I can't ping my pi-hole (timeout) and ssh (PuTTY or WinSCP) isn't working anymore.
Pi-hole is installed on Proxmox as LXC and pi-hole itself is working fine.
I know, that SSH was working but I haven't changed anything beside the general pi-hole updates.

Oh and nslookup pi.hole is working fine:

C:\Windows\system32>nslookup pi.hole
Server:  pi.hole
Address:  192.168.1.29

Name:    pi.hole
Addresses:  fe80::6463:a5ff:fe27:2fb1
          192.168.1.29


C:\Windows\system32>ping 192.168.1.29

Ping wird ausgeführt für 192.168.1.29 mit 32 Bytes Daten:
Zeitüberschreitung der Anforderung.
Zeitüberschreitung der Anforderung.
Zeitüberschreitung der Anforderung.
Zeitüberschreitung der Anforderung.

Ping-Statistik für 192.168.1.29:
    Pakete: Gesendet = 4, Empfangen = 0, Verloren = 4
    (100% Verlust),

C:\Windows\system32>ping 192.168.1.1

Ping wird ausgeführt für 192.168.1.1 mit 32 Bytes Daten:
Antwort von 192.168.1.1: Bytes=32 Zeit=2ms TTL=64
Antwort von 192.168.1.1: Bytes=32 Zeit=3ms TTL=64
Antwort von 192.168.1.1: Bytes=32 Zeit=2ms TTL=64
Antwort von 192.168.1.1: Bytes=32 Zeit=3ms TTL=64

Ping-Statistik für 192.168.1.1:
    Pakete: Gesendet = 4, Empfangen = 4, Verloren = 0
    (0% Verlust),
Ca. Zeitangaben in Millisek.:
    Minimum = 2ms, Maximum = 3ms, Mittelwert = 2ms

Where 192.168.1.1 is my router as simple ping test.

Here my network config on the pc

And log in on the Proxmox console is also possible.

[HeeeroYuy]

Found the problem and solution for Proxmox:
Check your f***ing firewall
In Proxmox (if you use a firewall — and I recommend that) set the firewall for the Pi-Hole Container like this:

Forget to set the SSH rule active. Damn that's embarrassing.