Yo, I had this exact problem a while back. The SmartData login kept spinning forever, and it drove me nuts. What fixed it for me was updating my browser. Sounds simple, but I was using an older version of Chrome, and once I updated, it worked like a charm.
Also, if you’re using a VPN, try turning it off. VPNs can sometimes mess with login pages. Hope this helps!
Also, if you’re using a VPN, try turning it off. VPNs can sometimes mess with login pages. Hope this helps!