In which region are you ?
#error code 0xC0F5214B
lyric steeple
woeful ermine
Google the error code and also check out this site.
https://nvidia.custhelp.com/app/answers/detail/a_id/4263/~/gamestream-error-codes
If both give no results, contact NVCC support.
https://www.nvidia.com/en-us/support/consumer/
Scroll the page down, and you will find the Live Chat and Ask us a Question links.
