Forum:Dogmeat not showing up at vault 101 (I've waited weeks and I have Puppies! perk)

I have the Pitt DLC and I get to the part where I meet the exslave in the train yard (right after you get slave clothes at the beginning) I talk to him but he says I have to leave dogmeat behind, the problem is I can't find dogmeat. I don't remember where I left dogmeat. I think he died and I didn't bother going to vault 101 to get him. The only other thing I would have done was told him to wait at vault 101. Either way when I look at vault 101 now, I can't find him. I've waited for weeks there and I looked closely at the glitch spot he falls into. So either way I can't find him to make him follow me so I can then tell him to stop. Has anyone else ever had the glitch where he won't let you go to the pitt because of companions when they aren't even following you? And can this be fixed?