I am able to add device to my community edition CR. But while adding device credential am getting error "Not Found-If the problem persists, please contact your system administrator"

Hi @Manoj Kumar Kewat​ ,

Could you try editing the Credential under Devices in Settings as shown in the screenshot below?

Then hit refresh once and try saving it.

Your hostname will autofill on pressing refresh, and if it doesn't that suggests that there is some issue which prevents your Control Room from connecting with your device.

Kind Regards,

Ashwin A.K