By Jan Fries 1437847
#534076 Hello,
since I have this problem for some time now and it is really annoying, maybe someone here can help me.

I experience random disconnections of my voice channel in Euroscope (3.2a20 and 19), so noone hears me, I don't hear anyone and voice list doesn't update. When disabling the voice channel and enabling it again, it updates everything and works again.

I've tried so far:
- a lot of googling
- switching voice servers
- forwarding ports (3782 UDP, TCP, 3290-3293 UDP)
- updating Euroscope from 3.2a19 to 3.2a20
- entering a lot of whitelisting in antivir (avast) and windows firewall

It is totally random, so it can be that there is 10 minutes of silence on the frequency and it still works, it can be that I talk to someone and 30 seconds or less later the next one won't reach me. I can't find anything in any log file, so might there be a solution to this or is this a general problem with euroscope? Noone of other controllers that I spoke with can help me, some are experiencing this issue as well, some don't.
By Nestor Perez 1369273
#534105 Hi Jan! Happened to me some time ago and I believe I found it to be a port forwarding issue.

In some cases (from what I saw, cases in which the user's ISP does some IPv4 <-> IPv6 tunneling), it is possible that the port used for your voice communications is none of the ones you mentioned. To find out which one you're using, replace your voice server into the following URL and open it in your browser. Then, search for your callsign to see which port
it is that you're on (and therefore, the one that should be forwarded).

For example, if I am connected to 'uk.voice.vatsim.net' voice server, the URL would be http://uk.voice.vatsim.net:18009/?opts=-R-D
By Jan Fries 1437847
#534142
Nestor Perez 1369273 wrote:Hi Jan! Happened to me some time ago and I believe I found it to be a port forwarding issue.

In some cases (from what I saw, cases in which the user's ISP does some IPv4 <-> IPv6 tunneling), it is possible that the port used for your voice communications is none of the ones you mentioned. To find out which one you're using, replace your voice server into the following URL and open it in your browser. Then, search for your callsign to see which port
it is that you're on (and therefore, the one that should be forwarded).

For example, if I am connected to 'uk.voice.vatsim.net' voice server, the URL would be http://uk.voice.vatsim.net:18009/?opts=-R-D


Hi Nestor,
thank you for your response. I checked that and it uses Port 3292 for me. So it should forward correctly (at least port forwarding works for a lot of other programs and ports too, so I would assume that this is not an issue).