Default [Q] interent sharing OSX

I want to share my ethernet internet connect from my Max with my HTC One as the WiFi calling is giving me a connect error today, even after numerous restarts.
Can't make it go.
Any help or ideas?
"the future is unwritten" - Joe Strummer

Device: HTC One, T-Mobile (US) S-On (not by choice)
ROM: OEM 4.3 w/Apex and Sense 5
Build: 3.24.531.3
Kernel: ElementalX m7 - 5.6
Baseband: 4A.21.3263.03_10.38m.1157.04L
Radio: 11.24A.3504.31_M
Recovery: TWRP

Previous Infestations HTC Sensation
ViperS 1.6.3 w/Apex
ELEGANCIA 4.1 v3.5
ARHD 6.8
Bricked 3 v1.4 lagfree
Faux b11 and 12u
OpenSense (fave, wish dev cont'd)
Hyper Nonsense 3.5