I had the same issue - I was pulling my hair out - I even called the new ORACLE Support. The Resolve to this was based on the firewalls of my company's security suite. I found that when I was directly wired to the network - I was unable to use the hyperlink tool - however if I was on the WI-FI network the hyperlink tool was unaffected. I hope this helps with your particular situation as well -let me know.
Thanks
Joel