Did you reboot your internet access device? DSL or Cable modems. Just reboot of the pc does not clear all areas or running the cmd line flushdns. Like most things in Windows some work some don't. Quess I was just lucky. I mostly operate in Linux systems. Use Windows when I have to. Have not tried to run turbotax online in Chrome or Edge on my Linux installtions, maybe next year will try it.
Sorry it did not work for your problem
