Search for . Click Inbound Rules .
Navigate to: . Find Turn Off UDP On Client and set it to Enabled . Restart the Remote Desktop app. 6. Registry Fix (Last Resort)
This lowers security slightly, so only do this to test if it resolves the error. 3. Clear the DNS Cache and Reset Sockets Sometimes the network "map" on your computer is stale. Open Command Prompt as Administrator. Search for
Indicates a failure to initiate the connection.
Ensure all rules for and Remote Desktop (UDP-In) are enabled (look for the green checkmark). 5. Disable UDP for RDP (Group Policy) Find Turn Off UDP On Client and set it to Enabled
Even if RDP is "Allowed," the specific port (3389) might be blocked by a specific rule.
Ensure no typos and that the remote PC is actually turned on and connected to the internet. Registry Fix (Last Resort) This lowers security slightly,
Before diving into registry edits, try these baseline steps:
Mac + Safari
iPhone + iPad
Google Chrome
Mozilla Firefox
Opera
Microsoft Edge