ServiceDesk Plus giving browser login prompt

ServiceDesk Plus giving browser login prompt

Running ServiceDesk Plus 8.0.0 8002, the latest.  Been having a problem for a while where everyone is prompted with a login popup prompt when they go to the ServiceDesk login page.  It's a basic browser prompt, looking for a username and password, and it will not accept anything thats entered.  However if you click cancel on it, it goes away and loads the ServiceDesk login page where you can then log in successfully.

Spoke with ManageEngine support about this, who had me add the ServiceDesk URL to the trusted sites list in the server's IE settings, and this worked for a few minutes on other machines before continuing to prompt again, so I don't think it actually did anything.

Anyone know how I can prevent this prompt from happening? 

                  New to ADSelfService Plus?