Windows 7 Pro network issue after joined to AD

Dear experts,

I have a dell OptiPlex 790 running Windows 7 Pro. It is experiencing network issue recently. The computer is joined to an AD network, everything works fine until I did shut down and restart. The network is disconnected, it cannot access network driver, nor any website.

So, I take the computer out of AD, then restart. Internet comes back on, and everything is fine. But, once I rejoin it to the AD, then the network goes down again.

Please help,

Thanks,

Spiderpig
SpiderPigAsked:
Who is Participating?
 
JohnConnect With a Mentor Business Consultant (Owner)Commented:
If Wireless, it may be joining AD (or thinks it does) before it makes a connection.

If Wired, are you using vanilla DHCP so that the computer gets the correct IP, DNS and Gateway?

... Thinkpads_User
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SpiderPigAuthor Commented:
Yes, all DHCP and DNS are being served by w Windows 2008 R2 AD. We tried both static and dynamic but with no luck. We found couple of articles relating to this issue and will implement on target PC tomorrow while on clients site. Will update ticket soon. Thanks.
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JohnBusiness Consultant (Owner)Commented:
@SpiderPig - Thanks and I was happy help.  

... Thinkpads_User
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