TCL TV codes will not work with Xfinity Remote - Cable Box XG2v2-P

New TCL TV - Model 50S525.   The Xfinity Cable box XG2v2-P shows only three codes for TCL to pair the Xfinity XR15-UQ  to control the volume and power.  Those codes are 12434, 11447, and 11454.    Using these codes I receive the following onscreen information "Unfortunately, your TV couldn't be paired with your remote. You won't be able to use your remote to control your TV power or volume for now. Please try again later."

TCL has provided me with additional codes that may work and suggest I contact you to see if these codes can be added to the available TCL codes of the Xfinity Cable Box.

These codes are 11756 , 12019, 12290, and 12292.

Mike.