laptop issues with authiticating to domain over wireless

I just ran into this yesterday, customer has a desktop and a laptop. the laptop doesn't get started up very often as it is used for board room presentations. she had changed her password last week on her desktop. all good. she fired up the laptop, let it connect to the wireless and tried to log in. she couldn't. she then typed in her old password and was able to get connected to the network though she didn't have her mapped drives and desktop. She did have access to internet but when I manually mapped a drive (install folder for example), it asked me to type in a username and password so I knew there was still an issue with authentication. I logged in as the administrator and manually mapped drives without any issues.

I took the laptop and connected it with a network cable, logged in as the user with the new password and all was good. disconnected it, took it back into the board room and logged her back in again with her credentials and all is good.

The environment is Windows 2008 domain server, laptop is running Windows 8 Pro.

So what might be the issue here?
johnny181Asked:
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albatros99Commented:
If she didn't have mapped drives and desktop she wasn't actually connected to the network but was using 'cached credentials. That also explains the old password.

The problem is that the wireless connection only comes up later so you don't have a network connection when you login.

When you connect a LAN cable and power up the system and logon you have a full network connection and you can use the new password. A successfull logon also means that the latest password is cached.

Talk to your network guys and ask them about the wireless setup.
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Raymond PengSystems EngineerCommented:
definitely sounds like a cached credential. I would recommend deleting all network mappings and stored credentials.

Go to Start > start typing 'credential manager' and you'll see all the Windows credentials being stored. I recommend deleting them all so she gets prompted again for login. I also recommend removing the network wireless profile so she's also prompted when connecting to the wireless network.
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Windows Server 2008

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