As a temporary troubleshooting step, try disabling NLA in the Remote Desktop Session Host settings to see if it bypasses the handshake error.
To fix a problem, you must understand it.
TCP handshake on port 3389 completes successfully, but network degradation or severe packet loss drops the session right after.
Enable and set the Security Layer to RDP .
If the connection is unstable, lowering the required security layer can sometimes bypass the error Microsoft Learn Group Policy Editor gpedit.msc ) on the host.
How to Fix Remote Desktop Connection Error Code 0x904 (Extended Error Code 0x7)
qwinsta rwinsta 2
Ensure both and Remote Desktop (WebSocket) are checked for Private and Public networks.
Remote Desktop Connection (RDC) is a cornerstone of modern digital workflows, enabling users to access computers and servers from afar. However, this convenience is occasionally disrupted by network and protocol errors. One of the more specific and frustrating issues users encounter is the combination of and Extended Error Code 0x7 .
This error typically indicates an unstable network connection certificate mismatch between the host and client www.remoteaccesspcdesktop.com
The most common "silent" cause of error 0x7 is the host computer falling asleep. RDP cannot wake a computer that is fully asleep unless "Wake-on-LAN" is configured. On the , go to Settings > System > Power & Sleep . Set "Sleep" to Never while plugged in.
When combined, these errors tell a clear story: Your RDP client and server cannot complete a TLS handshake. The server may support only older, insecure protocols (like RDP Security Layer instead of TLS 1.0/1.1/1.2), or a network device is interfering with the encrypted traffic.
Imagine you're trying to walk through a secure door (the remote server) using a digital key. You reach for the handle, but before you can even turn it, the door vanishes or the lock jams.
Microsoft patched a CredSSP vulnerability in 2018. If the RDP host has the “Force updated clients” or “Mitigated” group policy setting, but the client is not patched or has an older setting, authentication fails with extended code 0x7.
Go to , find your Network Adapter , right-click it, and select Properties .
On the (via console or remote PowerShell if possible):
Remote Desktop Connection Error Code 0x904 Extended Error Code 0x7 -
As a temporary troubleshooting step, try disabling NLA in the Remote Desktop Session Host settings to see if it bypasses the handshake error.
To fix a problem, you must understand it.
TCP handshake on port 3389 completes successfully, but network degradation or severe packet loss drops the session right after.
Enable and set the Security Layer to RDP .
If the connection is unstable, lowering the required security layer can sometimes bypass the error Microsoft Learn Group Policy Editor gpedit.msc ) on the host. As a temporary troubleshooting step, try disabling NLA
How to Fix Remote Desktop Connection Error Code 0x904 (Extended Error Code 0x7)
qwinsta rwinsta 2
Ensure both and Remote Desktop (WebSocket) are checked for Private and Public networks.
Remote Desktop Connection (RDC) is a cornerstone of modern digital workflows, enabling users to access computers and servers from afar. However, this convenience is occasionally disrupted by network and protocol errors. One of the more specific and frustrating issues users encounter is the combination of and Extended Error Code 0x7 . Enable and set the Security Layer to RDP
This error typically indicates an unstable network connection certificate mismatch between the host and client www.remoteaccesspcdesktop.com
The most common "silent" cause of error 0x7 is the host computer falling asleep. RDP cannot wake a computer that is fully asleep unless "Wake-on-LAN" is configured. On the , go to Settings > System > Power & Sleep . Set "Sleep" to Never while plugged in.
When combined, these errors tell a clear story: Your RDP client and server cannot complete a TLS handshake. The server may support only older, insecure protocols (like RDP Security Layer instead of TLS 1.0/1.1/1.2), or a network device is interfering with the encrypted traffic.
Imagine you're trying to walk through a secure door (the remote server) using a digital key. You reach for the handle, but before you can even turn it, the door vanishes or the lock jams. Remote Desktop Connection (RDC) is a cornerstone of
Microsoft patched a CredSSP vulnerability in 2018. If the RDP host has the “Force updated clients” or “Mitigated” group policy setting, but the client is not patched or has an older setting, authentication fails with extended code 0x7.
Go to , find your Network Adapter , right-click it, and select Properties .
On the (via console or remote PowerShell if possible):
