Detach or disconnect user from domain

I have a patriot gauntlet node. Nice bit of kit, allows you to share your 2.5 inch HDD via g wifi using its own ssid, with pass through to your traditional wifi. It was not working on my win7 work laptop even though it had the right security authentication (see end). I then ran win7 virtual image with VMplayer and that worked fine.

I decided the only difference was the domain membership. So I deleted it. That was a mistake.

I could still log on through the sophos safeguard with my domain password, even though it was not connected to the Internet. However on the win login screen I then hit the problem that I could not use domain login (I had assumed it would have cached the credentials and profile).

I am assuming to fix we just need to connect it back to the domain (will be an interesting and relaxing first day of my vacation going back to work to fix that). I am really hoping that it realises I have logged on before and does not trash my local files. I will report back.

Meantime that fix for samba authentication on win7:
Control Panel – Administrative Tools – Local Security Policy

Local Policies – Security Options

Network security: LAN Manager authentication level
Send LM & NTLM responses

Minimum session security for NTLM SSP
Disable Require 128-bit encryption