Thanks for coming back to me with the info! I have tried mirroring your setup and still can’t reproduce this. I can however reproduce something similar if I start blocking our cookies.
Could you try logging in to Resin in a Chrome incognito window and try the same thing? Also it would be worth creating and testing with a new profile to rule out any add ons or settings that may be interfering.
If that fails… are you familiar with the use of developer tools in Chrome? If you open the tools and view the Network panel whilst trying to download the OS you’ll be able to see all the requests to our systems. You’ll be able to see a status column, and look for any codes that read 401, or in fact anything beginning with a 4; if there’s anything there take a screenshot.
If this still isn’t working, please enable support access for your application and I’ll try your exact setup here.