This is getting old. Twice in the past month, I have been denied online check-in with the following message:

"We are unable to complete the checkin process at this time. Please proceed to the airport for assistance."

I have a 5:30 AM flight out of RSW tomorrow for which I was denied online check-in. I tried many different times today using 4 different devices. United Premier MP agent confirmed that everything in my file was "in order." Didn't have a clue why online check-in didn't work for me. Switched me to "Carla" at tech support who blamed me! Said United had "randomly-selected" me for denial of online check-in. When I asked why, "Carla" said it was my fault.

Called back to Premier MP desk - a different CSA claimed TSA "randomly-selected" me for this dubious honor, not United.

So, I spoke to three different United employees who gave me three different stories.

Anyone know what's going on here?