
I'm not familiar with Firewall Whitelisting etc. What I think is happening, is the old IT Guy/Company wanted to block any using Teamviewer, so I think we need to unblock in Windows Firewall, does this sound plausable? I read this Thread here that sounded like the closest thing to what I was seeing. Along the way some weird stuff was happening, and seemed as though TV was installed before, so when I deleted TV I said to remove all the old settings also. I even reinstalled it, and checked all the Settings. What was happening is, every time opening TV there was no password visible, and we even tried hovering our cursor in the Password Box as one site suggested. I tried to get rid of the possibly offending programs but they did not exist in Programs and Features, and ran out of time to use other methods. There was also Citrix, along with the popular LogMe-In that accompanies it. There was another Remote Program on the desktop that had a Business Name (that I won't mention) and did not recognise it.

We started by installing a new Teamviewer 12 to a machine that we were not familar with, and believe that they were previously hacked or something, the customer is not quite sure, they are Seniors. We tried to get on a clients machine and could not. We’ve brought two-factor authentication to TeamViewer at the connection level as another way to make certain your remote access and control solution is as secure as possible.Hey guys, need to fix a teamviewer login problem. The chances of a hacker having one of the other components is substantially smaller than relying on just a password alone. TFA requires not only something the user knows, like a password, but also something the user has, like their phone or a key fob, or something they are, such as a fingerprint or retinal scan. After all, according to a 2020 Verizon study 1, password theft is the leading tactic hackers use to gain access online. This process is two-factor authentication and while it may be annoying if you aren’t expecting it, TFA enhances the security of your online accounts.

That task may be an SMS message containing a time-sensitive code, a push notification on the website’s phone app, or even a phone call.

Most people have had the experience of trying to log in somewhere online and when, after providing your password, the website has you complete one further task to gain access.
