A router hanging high on a wall should distribute signal throughout the house better than sitting low on a table.
This open design allows for the back of the router to be mounted against a cool surface to help cool the router - this router gets hot when used by 5 or 6 devices at once, so dissipating heat was important.
This wall mount clip should work for most similar wireless routers. It was built for Alcatel but should work for similar HTC router.
This Alcatel router is 90 mm long x 14 mm thick
There's a mark on the printed wall mount object showing the center line for guiding for pre-drill. After print, drill hole with countersink drill bit before mounting to wall.
Download Fusion 360 file shared here:
Print resolution of .2 should be fine.