You may perform the below steps in the given order to troubleshoot it:
- Uninstall Nvidia Grid driver from Add/Remove Programs and reboot the master image
- Uninstall Horizon Agent and reboot the master image
- Uninstall VMware Tools and reboot the master image
- Install the latest VMware Tools downloaded from VMware Downloads page. Reboot
- Install Horizon Agent and reboot the master image
- Install Horizon Agent Direct Connection plugin
- Install the supported Nvidia Grid driver for your Tesla card. Reboot the image.
- Try to connect to the master image using the hostname/IP Address directly from Horizon client. Validate the Nvidia driver
- Recompose the pool