[Zeke]

Red88Carrera has had this nailed all along. In his panel it's the center lug with the 3 large wires coming down. The service cables are almost always AL and get loose. Now, Todd, I know you're not going to grab your 3/8ths Allen wrench and bear down on that sucker, but that's all it takes. Make sure when your guy shows up that you video him putting a turn on that. Give his bill to the landlord, don't deduct. He can collect if he has to, but the video should take care of it.

Do the feeds in the sub panel too.

BTW, a power company guy told me (in another state where I was working) to tighten down the lugs after 30 days on a new service.

Yeah, right, Bubba. There is no disconnect in front of the meter and you have to pull the meter to disconnect the load side. Not me.