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Dennis Miller
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VPN your machine is not a valid computer on the domain

I have had this a few times where a user has been using VPN then all of a sudden he gets this error, Your machine in not a valid computer on the domain? How does it lose touch with the domain and how can I correct this without having the user bring the laptop back in to sync up with the domain. He is a remote user and this would require a long ride to the company.
Microsoft Legacy OSVPNTCP/IP

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Dennis Miller

8/22/2022 - Mon
Ernie Beek

You could check if the machine is able to connect to a DC through the VPN to keep in synch (if you haven't done so already).
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Dennis Miller

ASKER
I was told that if the laptop has not been on the domain for over 30 days it loses sync? This guy never or very seldom comes in to the office. I myself have my laptop at home so when I am on call I do not have to bring my laptop home. This sometimes happens to me as well. I bring it back in and it syncs fine?
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Ernie Beek

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Dennis Miller

ASKER
erniebeek, you are on to what I am looking for. That is the exact problem.
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Dennis Miller

ASKER
I was told there was a reg hack that fixes this, but no one knows what hack. Lot of good that does me. Thanks.
Ernie Beek

Still thinking...............
Are you (they) using the cisco secure vpn client?
Dennis Miller

ASKER
yes we are. Seems were getting close.
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Martin Kühn

you could try to use lmhosts to point to your dc and your domain.
Dennis Miller

ASKER
I found the reason here. It seems Trend Micro needed to be updated. This apparently allows the VPN client to run. It works. I updated TrendMicro and the VPN now works. Thanks all.
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Dennis Miller

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Dennis Miller

ASKER
I found my own answer and this is the answer that works with this specific question. Trend Micro needed to be updated when off site. This causes a resync of the domain and the computer then once updated it will then connect fine.
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Ernie Beek

Good catch! That's one to remember :)
Thx for the points.
Dennis Miller

ASKER
Thanks for the help. This is what got me to the point of finding out that I needed to update this.