Specified port

KianWilliam · 14 Oct 2021

To whom it may concern:
After disconnecting from VPN and internet connection, when I tried to reconnect to internet (not vpn), I received this message:
The specified port is already open
a warm boot (restart) had no effect but a cold boot fixed it.(shutdown and start all again).
I believe there are better ways to fix it
Kian William

Windows version 21H1(OS Build 19043, 1237)

Paul Black · 26 Oct 2021

Hello @KianWilliam,

I noticed that you have NOT had ANY replies, so I thought that I would try and help.

If you want to check the actual Open Ports that Windows is using, type the following Command into a CMD Prompt and press Enter . . .

Code:


netstat -aon

I hope this helps.

Samuria · 26 Oct 2021

Its possible the vpn is holding the port open or not full shutdown some vpn give and option on what port to use