Unable to connect to webgui

Hi @Lvt , welcome to the forum.

Here is a standard list of questions the forum members would want to know from someone in your situation:
What is the IP of the PVE server?
What is the IP of your workstation?
What is the IP of your gateway?
Can you ping the PVE server?
Can you ssh into PVE server?
What is the output of "ip a" on PVE?
What is the corresponding output from your workstation? (ipconfig /all ; ip a)
What is the output of "curl -k https://127.0.0.1:8006" when run directly from PVE (over SSH or physical console?)
What is the output of "curl -k https://<CHANGE_THIS_TO_YOUR_PVE_IP>:8006" when run directly from PVE (over SSH or physical console?)

Good luck


Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
 
Check if the web GUI is running:
Bash:
#Connect to the host via ssh
ssh root@192.168.1.190

#install netstat
apt install net-tools

#Check for listening services
netstat -tulpen | grep LISTEN | grep 8006

#Should display something like this if the GUI is listening for connections:
tcp6       0      0 :::8006                 :::*                    LISTEN      33         11735      4525/pveproxy
 
@wowo - it is very likely that the GUI is running just fine. It is also likely that Op did not use appropriate IP address for their LAN, probably following one of the generic tutorials.
There are also a few more likely possibilities, all deal with Op's home network.

@Lvt - there are more than a few youtube tutorials that may be helpful.



Blockbridge : Ultra low latency all-NVME shared storage for Proxmox - https://www.blockbridge.com/proxmox
 
I would ping the IP, if no response I would check your router to see if some IP appeared there, in case you gave it a dynamic IP