Logon Delay After Entering Password

Guys, I believe most of you already heard and familiar with this issue.

1. A user in my company is using a brand new PC and everytime she login with
her username and password, the screen will just delay at the "Applying
Computer Settings" box for almost 5-10 minutes. This only happens if she
login straight away as soon as the PC reaches the login screen.

2. If she waits for at least 2-3 minutes at the login screen and then login,
there will be no delay.

3. I know this is related to network and yes my company is using a login
script. Tried unplugging the network cable during startup, and there will be
no delay.

4. The thing is, this issue didn't happen on almost all PCs, not even the
oldest PCs there are here. So I'm wondering if there is any configuration I
missed.

If you have any suggestion on what else I could try to solve this, please do
help.
I'd be greatly appreciated it. Thanks in advance.