Can't Start Duscussion in Linkedin, just repeatedly sign in.

I can sign in to my Linkedin account, but when I want to start a discussion I am prompted to sign in again. I do so once, then I am prompted a second time with no success. I then go to a default message informing me that I have no discussions.

Linkedin suspended access to my account yesterday because, from their viewpoint, I was signing in too often. Actually I was repeating the above attempt to start a discussion. Can you help? I think it may have something to do with a grey bar which shows up on the top of the page, asking me whether I want to change my stored password?