Glad to hear things are working out, pbGuy.
In this case, it seems to me that the Combo (re)install was not a player, but rather, the rebooting/resetting of your modem(s) was the probable fix.
Years, ago, I had a similar issue and joemike's fix was the solution. But why your first 10.10.4 broke things & why the reset puts things to right, I can only guess. Clearly some setting or corrupted file got resolved, but beyond that, I'm in the dark.
Let's hope Joe can shed some light.
