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The sign-in method you're trying to use isn't allowed. For more info, contact your network administrator

Above problem occur when you have not added a group (of which User try to login)  in your local policy login. To resolve the issue, follow the steps,

Log in as the administrator on the server, then start the Group Policy Management Editor by running the  gpmc.msc command from PowerShell or the Command Line window.
1. In the Group Policy Management window on the left hand side, select Group Policy Management.
Pic1
2. Click to expand the  Forest tree node.
3. Click Domains.
4. Select your domain name.
5. Click Group Policy Objects.
Pic2
6. In the right-hand window, double-click Default Domain Controllers Policy.
7. Right-click Default Domain Controllers Policy and Select Edit.
8. In the Group Policy Management Editor window, click Default Domain Controllers Policy.
9. Click Computer Configuration, and then click Policies.
10. Click Windows Settings, and then click Security Settings.
Pic3
11. Click Local Policies and then click User Rights Assignments.
12. In the right pane, click Allow log on locally.
Pic4
12. Click the Add User or Group button.
13. In the Add User or Group dialog,  enter the name to be added or click Browse.. to search for a name.
Pic5
14. Click OK .
15. Repeat steps 12-14 if you want to add more users.
16. Click OK to Close the Allow log on locally Properties dialog, and then click Close several times to Close the remaining open Windows.
17. Run the following command in the Command Window to activate the policy changes:
gpupdate /force.
Kindly note that above content is originally copied from http://www.sharepointviking.com/the-signin-method-youre-trying-to-use-isnt-allowed-windows-server-2012/

In case if above solution resolve your problem then please comment on it to increase its credibility.

Comments

den Danny said…
Worked for me. Thanks
Tony Lodder said…
tried this method but didn't work for me. My problem is with one particular user where she can login to some network machine but not others. I found a work-around by adding the user to the AD group
Domain Admins. Not ideal but at least she can work. Still investigating why this works
Claudia Herrera said…
It Worked ! Thanks Zeeshan Ahmed Memon Blog :)
muhammad ahmed said…
its work man thanks a lot
Anonymous said…
worked for me, thank you
Anonymous said…
thank you its work

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