Couldn't update Think or Swim this morning. Screen was stuck on installing updates. I removed/uninstalled Bitdefender (turning off the firewall didn't help) and then Think or Swim (tos) connected and updated per usual.
I haven't reinstalled Bitdefender just yet. But the Windows firewall (run on Win 11 by default if no other protection installed) said Chromium would like to connect to the internet and asked me to allow, which I did. No problems with Think or Swim after allowing.
My laptop also has the same issue. So I'll have to uninstall Bitdefender to get that to update too.
Think or Swim offers a place to enter a Proxy, but I haven't tried that and don't know much about it.
Hopefully this can be solved with a Bitdefender update?