Remote Desktop Connection Error Code 0x904 Extended Error Code 0x7 File

(if you cannot disable NLA) If the host is patched with CVE-2018-0886 in “Force updated clients” mode, you can downgrade temporarily:

Ensure mstsc.exe (the Remote Desktop app) is allowed through the Windows Firewall on both your computer and the target machine. (if you cannot disable NLA) If the host

If the services are stuck, the host will not accept new connections, resulting in extended error 0x7. (if you cannot disable NLA) If the host

If there is an encryption cipher mismatch, lowering the security requirement can restore the connection. Open gpedit.msc on the host. (if you cannot disable NLA) If the host

Type netsh interface ipv4 show subinterfaces to see your current MTU (usually 1500).