TP-Link AD7200 User Manual page 118

Q8. What can I do if I am still required to enter the password for USB
access even though I have selected Remember my credentials in my
Windows computer?
Because of Windows special credential mechanism, if the USB access username you set
is the same as the Windows account name, Windows will be unable to remember the
password you set for the USB.
To solve this problem, you can set a different USB access username or make the USB
access password the same as your Windows account. After you modify the access
account, remember to log off (sigh out) from the Windows.
Q9. Why am I never required to enter the account information for USB
access even though I have enabled the Authentication feature?
This situation probably happens to your Windows computer due to its special credential
mechanism. If your USB access username and password are both the same as your
Windows account, the Windows will automatically use its account information to access
the USB disk. Therefore, you will have no need to enter the username and password.
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