can't connect from outside network with SPICE

[vigilian]

Hi,

So I have a strange problem, this proxmox server si inside a LAN.
1/ I can connect from inside the network. I even not have to configure the firewall of the datacenter to accept the spice connection but maybe that's a logical behaviour but in opposite, I had to open the new ssh port in the firewall of the datacenter.
2/ I can't connect from outside the network. It's very strange because I have an edgemax router so I can see in real time the stat of accessing each port number, and there is no incrementation of this stat, so no request on this port is made.... Is there another port where the request is made? or virt-viewer isn't working in windows or am I missing a point somewhere?(tested on windows 7 and 10)
anyway the error message is :
Error sending data: Une requête d’envoi ou de réception de données n’a pas été autorisée car le socket n’est pas connecté et (lors de l’envoi sur un socket datagramme en utilisant un appel sendto) aucune adresse n’a été fournie.
so in substance, no address has been supplied,socket not connected etc
sometimes the error message change and give my that has been a socket I/O error to the adresse IP .... (which is the external adress ip of my server)

 

[JNL]

I have the exact same problem, can conect using a VPN and a local ip, but when loging to pmve using the public ip adress of the server Spice gives me those 2 errors. i tryed forwarding port 3128 to the local ip of the pmve server and to the local ip of the VM.

Help would be appreciated.