I've had the same problem with TDA. I tried Reinstalling WebView, but Windows wouldn't let me....said it was already installed. They also wouldn't let me uninstall it. Then tried
installing one of the backup files (as discussed above ), but that didn't work either. My issues and responses from TDA are exactly the same as ARG's above. The problem was not present two days ago, but I'm now in a different location several hudred milers from home. I'm using a hot spot from my phone to connect to the internet. I have no problem connecting with TDA and seeing a response to trading activity on the site, The problem seems to be in the communication between TDA and MT. Any further ideas??