GPI and Tally Interface Update

Hi All,
We've recently updated from a Production Studio to a Production Studio 4K. Our previous switcher was running the tally box perfectly. The new one doesn't work with the tally.
I've downloaded the latest atem software and am trying to update the GPI box. It recognises that it needs to update but all I get is "update failed - check your connection". I''ve tried connecting USB and ethernet and each individually. I also can't get to the IP address screen as the atem connection software crashes each time I click on that box.
Any ideas what the issue might be and how I can get it up to date. I'm guessing out of date software may be why it's stopped working but if I can't update it - I'm stuck!
Thanks
Richard
We've recently updated from a Production Studio to a Production Studio 4K. Our previous switcher was running the tally box perfectly. The new one doesn't work with the tally.
I've downloaded the latest atem software and am trying to update the GPI box. It recognises that it needs to update but all I get is "update failed - check your connection". I''ve tried connecting USB and ethernet and each individually. I also can't get to the IP address screen as the atem connection software crashes each time I click on that box.
Any ideas what the issue might be and how I can get it up to date. I'm guessing out of date software may be why it's stopped working but if I can't update it - I'm stuck!
Thanks
Richard