You were correct, the initial message I was getting was "forbidden", but after getting rid of firewalls and clearing my cache I started getting the ERR.021 which indicated my account was locked. The confusing thing was that I could log into the same taxpayers CRA account through represent a client that I was trying to use AFR for and there was no error message. I called the CRA. It took a bit, but the person I talked to was able to locate the part of my account that was causing the issue and correct it. I am now able to use AFR. Thank you for all of your help.