Get to admin login?

Hello, I am new here.

We had a company come in and setup an inventory system at one of our divisions, with 3 terminals using WYSE S30’s. Each has 2 connections setup (one to their system, and one to our terminal server). One of these recently dropped the connection we had setup to our system. I know that there is some key combination to get to the admin login dialog, but I have tried everyone I could find with no luck. I know the login info, if I could just get to it (so I can setup our connection again). Also, wondering if anyone knows why this thin client would drop one of the connections it was configured with?

I have tried: ALT+Escape, Holding the Shift key while clicking on the shutdown button, Holding G while restarting, ALT+F4, and many other key combinations. I have done this before, but I am having no luck finding my notes about it, or anything else I haven’t already tried on the net. I really don’t want to reset it to factory because I know I’ve gotten to this admin login dialog before.

Any help is greatly appreciated! Thanks in advance 🙂

– Mike