Modern Remote Desktop connections attempt to use both TCP and UDP protocols to improve speed. However, if your router, firewall, or VPN drops the UDP packets, the connection collapses into an extended 0x7 error. Forcing RDP to use TCP only frequently resolves this. Press Windows Key + R , type gpedit.msc , and press Enter .
If you need immediate access and cannot troubleshoot right now, try using the instead of the desktop app. Modern Remote Desktop connections attempt to use both
Keeping these root causes in mind will help you understand why many of the solutions below go beyond simple network checks. Press Windows Key + R , type gpedit
If the client cannot handle the encryption level requested by the server, disabling NLA temporarily can restore access. On the host PC, go to . Click Advanced settings . If the client cannot handle the encryption level