Good questions, here are some answers: 1)yes, I did try to join the domain using the Netbios name, it failed and said the domain could not be contacted. 2)i did not test WINS and DNS lookups. how would I do this specifically? 3)I am able to ping all servers by name before dis/rejoining the domain without problem. 4)Yes, the computer accounts are there before I dis/rejoin. I delete them after I disjoin, so that they get recreated when I rejoin. Does this tell us something? -----Original Message----- From: Roger Riggins [mailto:roger.riggins@xxxxxxxxxx] Sent: Thursday, December 16, 2004 11:08 AM To: thin@xxxxxxxxxxxxx Subject: [THIN] Re: OT: weirdest thing I've ever seen I read it as: "to AD 2k3 native mode with only 2 DCs" "from AD 2000 in mixed mode with 3 NT 4 BDCs and 2 AD 2000 DCs" Did you try joining the domain using the NetBIOS name instead of the FQDN? How's name resolution working? Did you test WINS and DNS lookups? Did you try pinging a server with both methods from the laptop before you dis/rejoined the domain? Were you able to find computer accounts in AD for the laptops before you dis/rejoined? Good luck, R -----Original Message----- From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Ron Oglesby Sent: Thursday, December 16, 2004 9:29 AM To: thin@xxxxxxxxxxxxx Subject: [THIN] Re: OT: weirdest thing I've ever seen Uh: this confuses me "We just recently upgraded our domain to AD 2k3 native mode with only 2 DCs from AD 2000 in mixed mode with 3 NT 4 BDCs and 2 AD 2000 DCs" Does this mean you changed the mode to native 2003 AND you still have NT 4 BDCs and 2000 DCs running? Not good. Ron Oglesby Senior Technical Architect Microsoft MVP, Windows Server RapidApp, Chicago Office 312.372.7188 Mobile 815.325.7618 email roglesby@xxxxxxxxxxxx -----Original Message----- From: Luchette, Jon [mailto:JLuchette@xxxxxxxxxxxxxxx] Sent: Thursday, December 16, 2004 9:14 AM To: 'thin@xxxxxxxxxxxxx' Subject: [THIN] OT: weirdest thing I've ever seen Here is a good one. We just recently upgraded our domain to AD 2k3 native mode with only 2 DCs from AD 2000 in mixed mode with 3 NT 4 BDCs and 2 AD 2000 DCs. We have about 1200 client machines running mostly XP and 2k some 9.x machines but not many, Dell and HP mostly. I don't know if it is related to the domain upgrade but since then we have had 3 Dell Laptops running win 2k have this very strange problem. One at a time we'll get calls where they say that their network drives aren't mapping during logon, and when we go to look at their machine we try to logon and we get "The domain is not available." It seems that in the network configuration it'll have the Netbios name of the domain listed on these machines so what we do to fix it is, remove the machine from the domain, and then readd it using the FQDN of the domain. This seems to allow us to atleast logon to the domain successfully. Anyone ever seen anything like this happen before, or have any ideas if this might be related to the domain upgrade we just did? Maybe it is due to the fact that we used to have 5 DCs and now we only have 2? But 2 should be good for 1200 clients don't you think? Thanks! /jL ******************************************************** This Weeks Sponsor SeamlessPlanet.com Domain Names Register your .com domain name for as low as $7.85 One of the lowest prices on the web! 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