So I lost ED-E when entering Nellis. I just dealt with it, until now. I cannot enter Caesar's tent because the game thinks I have the robot with me. I have tried waiting weeks in game and returning to Primm, didn't work. I have tried the elevator at Vault 22, didn't work. I need a way to find ED-E and get rid of him or be able to communicate with him. Up until now it has been an inconvenience, now it is stopping me from continuing the game. This really svcks!! Any help will be appreciated.

I recommend you go back to Nellis, and find Ed-e, if possible.
My Ed-e got KO'd in the Hoover Dam battle, I had a bit of a search finding him.

If you are willing to not have a creature companion for a while, talk with the robot Victor outside the Lucky 38 and choose ok to making your companions wait.
Then activate your human/mutant/ghoul companion if you have one and tell them to follow.

Waiting companions return to where you found them after a certain amount of time passes.

I went to Lucky 38 and there is no robot outside anymore. I went inside and the robots started attacking me. I also went back to Nellis and looked everywhere, no ED-E. I would like to continue playing the game but can't continue the main story and have done almost all side quests. Any ideas?