Settings to check when VNC fails remote connection to Windows 10

I can't connect to Windows 10 with using VNC.

VNC is a famous remote desktop connection software.
A lot of people use VNC for remote access.

But sometimes we faced some issue.
For example, I used to be able to connect remotely, but now I can no longer connect.

The destination server is running and VNC Server is also running.

So what is the reason of connection failure ?

So today I will explain about "Settings to check when VNC fails remote connection to Windows 10".

Settings to check when VNC fails remote connection to Windows 10

If the settings on the client side are correct, the cause of VNC connection failure is on the server side.

And if the server is physically running and connected to the network, remote connections are blocked by software.

Then, there are two settings to check:

Network setting is "private" or not

Network setting is "private" or not.

In order to check it, you can check following steps.

STEP

Open "Network and Internet" settings

First, push Win + I or right click Windows button and click "Setting" to open settings page.

Then choose "Network and Internet".

STEP

Open properties of network

After Opening "Network and Internet", select "Status" from the menu on the left side.
And click the "Properties" button of the network settings.

STEP

Check if network setting is "private" or not

Then, on the network profile screen, make sure the network type is set to "Private."

"Private" means that it's a private internal network, so you can share it and connect remotely.
But "Public" means that it's open to the outside world, so you can't use it for sharing like remote connection.

Firewall is on or off

Another thing to check is whether the firewall is turned off.

A firewall is a setting that strengthens security.
But it also blocks connections that are operated from outside, such as remote connections.
So you need to turn it off.

The confirmation method is as follows.

STEP

Open firewall and network protection settings

First, open Windows Security and open the "Firewall and network protection" settings.

STEP

Open private network firewall settings

Open the Firewall and Network Protection page, then open the private network firewall settings.

STEP

Turn off firewall

If the private network firewall setting is on, turn it off.

Once you turned off firewall, OS requires reboot.
After reboot, you can have remote connection with using VNC.

Conclusion

Today, I introduced about "Settings to check when VNC fails remote connection to Windows 10".

If the settings on the client side are correct and the server side is also running, the cause is the "settings" on the server side.

There are two settings to check:

Sometimes settings are changed by some operation or Windows update.
It causes VNC remote connection failure.

So in such case, you can check the settings and try VNC connection.

I don't want Windows Update to overwrite my network settings