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Ngdial Command Fails if Appliance is configured with a Self-Signed Certificate
03/26/2020 
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Description
Ngdial Command Fails if Appliance is configured with a Self-Signed Certificate
Resolution
Overview
The following ngdial command will fail if the appliance you are connecting to an appliance that is setup with self-signed SSL certificate:
ngdial "Aventail VPN Connection" -server=<ADDR> -login="<REALM>" <USERNAME> <PASSWORD> -icon -status=enable
When this error occurs, the logging messages from ngutil look like this:
09:50:35.704 D Connection closed. 09:50:35.704 D IoClose completed, status 0x5023 09:51:19.633 D LPRPCTransportSSPI::Connect() FAILED 09:51:19.633 I No logon server was detected on the appliance. [67.42.40.117] 09:51:20.367 E RasCustomDial completed with errors. Error 0x000004D0: The network location cannot be reached. For information about network troubleshooting, see Windows Help.
Resolution
For appliances setup with self-signed certificate, we need to use the following command to ignore certificate warnings:
ngdial "Aventail VPN Connection" -server=<ADDR> -login="<REALM>" <USERNAME> <PASSWORD> -icon -status=enable -nocerterrors
For more details, please contact SonicWall Support.
Tracking
Bug ID: 142551
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