HTML5 RDP bookmark fails with error: Connection Closed! Error(TypeError: a.readCertHex is not a function
03/26/2020 8 People found this article helpful 398,463 Views
Description
HTML5 RDP bookmark fails with error: Connection Closed! Error(TypeError: a.readCertHex is not a function)
Resolution
HTML5 RDP bookmark is configured to access a terminal server. It fails to connect with error "Connection Closed! Error(TypeError: a.readCertHex is not a function)"
The same bookmark works with Java or ActiveX.
Resolution: It is an issue with the encryption setting on the Server which needs to be changed.
Go to RDP-TCP properties:
Check if the setting is set to low encryption
Negotiate and encryption level to Client Compatible security
Save the changes and the bookmark should work.
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