Unable to change network authentication method

Question

Hello,

I have a problem where I'm unable to change authentication method and therefore can't connect to the internet through ethernet adapter.

Basically, I want to change my authentication method to SecureW2 TTLS because other methods don't work with my ISP. Screenshot showing the problem:

After clicking OK, I get this error (The changes to Authentication settings could not be saved). I also get the same error if I for example try to uncheck "Enable IEEE 201.1x authentication" or if I try to change anything under Authentication tab.

Reinstalling Windows solved my problem a week ago, but now this error is back and I don't want to reinstall Windows again.

Things I've tried:

Reinstalling adapter

Updating adapter drivers

Restarting TCP/IP via netsh

Reinstalling SecureW2 (I have installation program for this authentication method)

Troubleshooting network

Restarting network

Probably couple more things I already forgot

Any solutions?

Answer 1

I would suggest attempting a repair upgrade, this would reinstall Windows 10 while keeping your apps, files and settings intact.

Check if you can then make the changes again.

http://answers.microsoft.com/en-us/insider/wiki...

Answer 2

Okay this actually fixed my problem.

Thanks for the help.