I have a room with 5 duplex outlets (including 1 GFCI) and 2 single pole switches on a 20 amp circuit.
One outlet isn't working and measures 0V from hot-neutral, 1V from hot to ground and 1V from neutral to ground (and measures the same voltages when directly touching the wires, rather than just inserting into the receptacle).
The other 4 (including the GFCI) measure the expected ~120V from hot-neutral and ~0V from neutral-ground, but only ~11V from hot-ground (which I take to mean these are not grounded properly?).
Both single pole switches are working just fine, but I did not bother taking voltage readings (though I certainly can if this would help diagnoses).
I have no idea what steps to take in order to address the 0V from hot-neutral outlet -- does anyone have a suggestion?