Login delay

In a Windows 2003 native domain, I experience a delay in login ability for about 15 minutes to the domain controller after any type of reboot.  When I gun patches or anything that requires restart of all servers, I have to patch the DC, restart it and as a general rule, I have to wait between 15 and 30 minutes before I patch and restart the remaining domain controllers and member servers.  If I fail to do this, I get TONS of netlogon errors or what appears to be breakdown of the secure channel.  

Has anyone experienced this?

Thanks!

~J~
jwmoodyAsked:
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Netman66Connect With a Mentor Commented:
DNS issues.

If you have 2 DNS servers, then point one to the other for Preferred and the Secondary is itself.

Let us know.
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Jay_Jay70Commented:
netman - if you take this route do you have to enable round robin as well?
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Netman66Commented:
Why would you need to?  I think, by default, it's enabled - but I'm curious why you would ask.

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Jay_Jay70Commented:
you are correct it is enabled by default, i am just trying to understand how reverting to alternate dns servers speeds things up as i only ever see it slow things down...thought myabe round robin may have something to do with it,   was more thinking out loud i guess :) wasnt going against anything you had said was just trying to grasp on "how it works" :)
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Netman66Commented:
Well, the thinking is that 2 DCs host DNS.  During bootup some services lag while others start more quickly.  Since AD requires DNS to be responsive then pointing DCs to each other rather than to themselves may allow them to find a live DNS server during boot more quickly.

It shouldn't be necessary since Windows should self-tune as a DC, however we all know that theory never quite works the way it should in the real world. :o)

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Jay_Jay70Commented:
ha true that - one of the joys we face day to day :)
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jwmoodyAuthor Commented:
So basically, point the primary to the secondary and point the secondary to the primary?  I'll see how this works this upcoming Tuesday on patch day.  

Thanks for the feedback,

John
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