So what you want to first do is to disable Windows Firewall or any other antivirus software you might be using. Provide permission for Port 3389 on FirewallĪs mentioned, when this port is blocked you cannot establish connections.
When this is option is turned off, which is under “Network Sharing”, you can’t establish a connection to your target systems, and the error code 0x104 will be displayed on the Remote desktop. The Remote Desktop is utilizing port 3389 when using the RDP connection and if this port is blocked by a Firewall or any Antivirus software, you cannot connect to the systems you’re trying to. Removing custom DNS or any settings that are causing the problem will help you establish the connection successfully. This is the case especially if you’re using custom DNS servers, or you’ve altered DNS settings in a way they’re not favoring Windows Remote Desktop.
In this post, we’ll outline how to fix the Microsoft remote desktop 0x104 including the causes and solutions, plus also some tips that will help you avoid the error. Even firewalls can block the connection to compromise your privacy settings and block the system that’s on the network. This could be because of wrong network discovery options or DNS settings.
