0x204
Moderate
Microsoft · Windows
Remote Desktop client could not establish a session to target host.
Quick Answer
Error code 0x204 on your Microsoft Windows means: Remote Desktop client could not establish a session to target host.. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Confirm target host is online and RDP enabled.
2
Allow TCP 3389 through host/network firewalls.
3
Verify DNS resolution and test by IP.
4
Check Network Level Authentication compatibility.
5
Review RD Gateway and certificate trust if used.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Related Error Codes