Windows 10 UDP Port 61905

[horacio_56]

I just bought a pc with Windows 10 and noticed that it opens the UDP port 61905 through Upn, I can't figure out which service or application it corresponds to. It's the first time this has happened, it has never happened to me before that a port opens without my intervention. I could disable Upn; but, I don't know if this port is important for Windows 10.

[cobito]

Do you have Skype, any Torrent client or something like that in the background?

[horacio_56]

@cobito Skype Empresarial 2016, but I have it deactivated, I never use it; and as for the torrent I don't have it through Upnp, it's another port. I have 4 ports always open: 1 qBittorrent, 2 eMule and another one that is from the ISP. And sometimes port 61905 appears, it's not always active.

[horacio_56]

It seems that Windows has nothing to do with it. With qBittorrent running, I access the modem and I find a self-configured UDP port 52038. Then I go to the “Resource Monitor” it is listed as “svchost.exe (netsvcs) pid 624” and with the command netstat -banov -p UDP “[qbittorrent.exe] UDP 10.0.0.1:52038 iphlpsvc pid 624”.

It is qBittorrent apparently, even though I have disabled Upnp from the program.

The same thing does not happen with a netbook (Windows 7 32-bit, qBittorrent 32-bit) nor did it happen to me before, that's why I discovered it now with Windows 10 64-bit, qBittorrent 64-bit.

Thanks for the answer.

Best regards!

[Fassou]

Thanks for the reply.

Thanks to you for stopping by to share the results of the investigation ;D