Hey there rdavison39,
Judging by your post, I am under the impression that you are being blocked by some sort of a company network. This being said, I believe I have an article that may help with your problem if you are behind some sort of a proxy server. You may need to contact your network administrator to assist you with this process, but if you show them the article below things may go a bit more smoothly. The article that we located for you is as follows :
Thank you for contacting us with this problem, and I hope this solves it for you.
Best of luck,
The Sling Moderation Team