I am having account lockout issue with a user.

I have narrowed down the problem his Samsung galaxy s5 phone is causing the account lock out

we have removed exchange account , cleaned browser history but as soon as she turns on her phone her windows account gets locked up, cleared cached credentials and passwords from her laptop

she has not changed password on her mobile. what apps can be causing the problem, as soon as her phone is off her windows account never locks up
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You say she did not change her pass on her mobile, but did she change it from the notebook? I mean she changed the domain account password, but her mobile might try to pass the old password.

Did you remove the account from her email account on her phone and then she still locks up? She has any other email app type program on the phone besides the stock one?

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pramod1Author Commented:
she never changed any password on notebook or phone. her account was getting locked when she got migrated to office 365.

we removed exchange account , still getting locked.

is there any apps causing it
Thank you!

There is a free account lockout utility made from netwrix that helped me out a couple times. You could try that.

Also, in credential manager, try to clear out anything you see in there.
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