On Thu, May 15, 2025 at 10:45 AM <[email protected]> wrote: > Forgot to mention that I am using Nginx Proxy Manager on my local network > where guacamole server is running. > > On 2025/05/15 14:41:08 [email protected] wrote: > > Installed guacamole 1.5.5 on Proxmox, fresh install. > > > > I get the following message when trying to connect from my work PC: "An > > error has occuted and this action cannot be completed. If the problem > > persists, please notify your system administrator or check your system > > logs." > > > > I`m tryeing to coennect for hours and sometimes I am able to get the > login > > screen, but as soon as I discoennect I am back to getting the error page. > > > > > > > > The problem occurs when I try to connect from my work PC (which belongs > to a > > large corporation). When connecting remotely from my own pc, from > anywhere > > else, there is no problem. > > > > What may be the problem? > > > This sounds to me like your corporate network team may be doing something that is interfering with the traffic. This could be any number of things - I believe some people in the past have reported that certain firewalls have settings to shut down long-running connections (such as a HTTP or Websocket tunnel, like Guacamole uses), or they could be trying to filter traffic and block items that they believe constitute a risk for data loss or malware infections (since Guacamole can do file transfers, I'm not shocked that it would fall into that category in some places).
Outside of network-level things, it also could be items like virus scanners or malware prevention that could be recognizing the traffic as something of a threat, again, depending on what types of rules your company is enforcing. If the environment at that corporation is relaxed enough that you feel comfortable, you could ask a friendly network admin if they know of any reason that traffic would be blocked, filtered, etc., otherwise you might just have to try what you can and see if you can get it working :-). -Nick
