9300L-48p-4x

[00us9ygj1WbEEwD7K5d6]

I get this error when trying to install switch using our DNA center 

PnP Discovery stopped (config text)

I Can Ping our server - so i Think the problem is on the switch

[balaji.bandi]

what is the version of DNAC and what is the version of Cat9300?

Look at the compatible matrix :

https://www.cisco.com/c/en/us/support/cloud-systems-management/dna-center/products-device-support-tables-list.html

[usaf_27]

With very limited info I am suspecting you have a Config present on the switch.  Trying clearing the Config.