Windows 10: tcp connect to port 443 failed

I have checked the port 443 by powershell in win 10 by the following command:"tnc hostname –port 443" mention hostname of the computerbut I got the “Fail” result how can I solve the problem that get the “True” result?I was created Inbound rule for tcp&udp 443 and also Outbound rule for tcp&udp 443 in windows firewallWhen the other person checked my system from remote she let me know that the port 443 is not open.

:)

 

TCP - Remote ports 80 and 443?

Under resource monitor > TCP connections, I've noticed quite a bit of activity on remote ports 80 and 443.

I decided to track several of these IP addresses and whilst some are expected (Microsoft, Amazon (Firefox)), there were a few which went to other mainly web hosting services. Is this normal and expected?

Is it just routing through?

 

whitelisting url on port 443

Normally when you open an URL started with https:// that use the TCP 443 port for SSL connections, it's used for a safe transfer.

 

Can only connect to VPN on TCP Ports 80, 443

Hi,

The following applies to the platform:

- Windows 10 Pro, Version 1909 (OS Build 18363.720)

- HP Probook 455 G3 (16 GB ddr3 RAM)

I am absolutely befuddled by the following problem and please note: I am not an expert, but not a novice either. Please note also that I have contacted Microsoft tech support, that of my IP provider and the VPN provider (NordVPN and now SurfShark) and none
could figure this problem out.

So recently I decided to subscribe to a VPN service. I can connect under the following circumstances:

- openvpn-gui v11.14.0.0 from OpenVPN technologies (I don't think the maker is relevant)

- any provider VPN server that accepts a TCP connection over PORTS 80 -or- 443

Anything else seems to be blocked; on the Microsoft Network Monitor I can see the Sync message going out from my computer - multiple times - and absolutely nothing comes back. This is for ports that include 1194, 1443, 7070, 7777, 8008, and 8080.

I have tried the "usual suspects", all to no avail:

- completely removing McAfee security;

- poking holes in Windows Firewall (ports, programs), as well as Windows antivirus

- trying (in Windows Firewall) to see what is so special about Ports 80 and 443; I do realize that these ports are the nominal ports for http and https respectively - I doubt this is a co-incidence.

- establishing a Windows manual VPN connection: it accepts the input, but then the device shows up as "Unavailable - device missing" in Network Connections in Ctrl Panel.

- ALL THE STEPS in Can’t Connect to VPN in Windows 10? Here’s How to Unblock it

Does anyone have any ideas ? I would at least like to know if it is even possible to do what I'm trying to do in Windows 10 !!

Thanks

Bob