There must be 10,000 of us tearing out our hair right now. Has anyone else been able to onboard? Reports have it that the string of 124 characters to enter in the browser window is creating havoc. By sleight of mouse I succeeded at that after four hours but still cannot "sign and submit" about 1/2 of my documents because the grey bar does not work.
I finished today fairly quickly, no problem with the link in the email, didn't try to paste the link. I noticed it implied to use internet explorer so I did switch to that rather than my normal Chrome. Maybe that would help if you are using a different browser.