A good setup should not be dropping or causing any alarm that needs you to "investigate."
I would run the modem in the master 100%. If the setup is good, it should run flawlessly without drops. Just buy a console table or something and stick the router/cordless phone on it.
Use wireless AC and AC boosters as required.
If you want a wired office, run ethernet from the hall to the office, you could stick a second wireless AP into this ethernet if you also want a WiFi boost (again get wireless AC stuff).
Edited by ukhardy07 (Thu 24-Jan-19 02:03:42)