No access to chatroom

Hello, after we got a new firewall-system for our department, we have not been able to access our chatroom anymore. It simply doesn't open up. Therefore, it must be blocked somewhere. What can I do? All of us are part of the same network. Thanks for your help in advance

Re: No access to chatroom

Corinna Preuß wrote: after we got a new firewall-system for our department, we have not been able to access our chatroom anymore. It simply doesn't open up. Therefore, it must be blocked somewhere. What can I do? All of us are part of the same network. Thanks for your help in advance