Virtualised domain network communication issues

Hi all,
I have a situation with a virtualised domain network. I have a primary and secondary Domain controllers, and 4 Remote Desktop Servers, all are running Server 2012 R2. Some of the Remote Desktop Servers are
OK, but 2 of them consistently lose connection with the Domain Controller and DNS and can only be accessed via console. A reboot resolves the issue. We have a scheduled reboot in the morning at 5am but approx 10-12 hours later, they drop off, until we reboot
it again.
I have tried hotfixes, I have upgraded from 2008 R2 to 2012 R2, I have added a second 'internal network' connection to hopefully bypass the physical Nic. But this still keeps happening. I have also seen reference
to disabling the 'Large Send Offload' setting on the virtual nic, but that caused the server to become unresponsive and require a restart as well.
I am really hoping someone has come across something similar as no solution I have found online has helped.
Thanks in advance!
Stu

Hi Umesh,
Thanks, I am aware of that, that's one of the reasons I have added the other DC. All servers are now pointing to that one as their primary DNS.
I am not 100% sure yet as there hasn't been enough time pass. But there was a program running on the servers called 'networx' which is a bandwidth monitoring and logging program which basically gave us an easy report of what their internet usage is on a
per program basis. I have disabled that and that *seems* to have given them much more stability as they have had no freezes or quick disconnections since that was done. If it is that that is the problem, can any of you guys suggets a free/low cost program
that logs internet usage by program/site on a TS?
OK, so back to the questions:
1. Domain Controller:
IP: 192.168.200.241/24
DG: 192.168.200.254
DNS1: 192.168.200.241
DNS2: 192.168.200.240
2. Affected VM:
IP: 192.168.200.43/24
DG: 192.168.200.254
DNS1: 192.168.200.241
3. Result is:
nltest /dsgetsite:<cpointfs>
the Syntax of the command is incorrect.
4.
C:\Users\administrator.CPOINTFS>repadmin /showrepl
Repadmin: running command /showrepl against full DC localhost
Default-First-Site-Name\CPOINTAD
DSA Options: IS_GC
Site Options: (none)
DSA object GUID: 53cc5d7f-0624-42d3-8916-60d8f74233b5
DSA invocationID: b2756aae-6442-4964-9773-68f8494c2ad9
==== INBOUND NEIGHBORS ======================================
DC=cpointFS,DC=local
Default-First-Site-Name\CPOINTDC via RPC
DSA object GUID: d01d6df9-288a-45c9-8cbc-f65ab64ec996
Last attempt @ 2015-03-16 11:11:56 was successful.
CN=Configuration,DC=cpointFS,DC=local
Default-First-Site-Name\CPOINTDC via RPC
DSA object GUID: d01d6df9-288a-45c9-8cbc-f65ab64ec996
Last attempt @ 2015-03-16 10:47:26 was successful.
CN=Schema,CN=Configuration,DC=cpointFS,DC=local
Default-First-Site-Name\CPOINTDC via RPC
DSA object GUID: d01d6df9-288a-45c9-8cbc-f65ab64ec996
Last attempt @ 2015-03-16 10:47:26 was successful.
DC=DomainDnsZones,DC=cpointFS,DC=local
Default-First-Site-Name\CPOINTDC via RPC
DSA object GUID: d01d6df9-288a-45c9-8cbc-f65ab64ec996
Last attempt @ 2015-03-16 10:47:26 was successful.
DC=ForestDnsZones,DC=cpointFS,DC=local
Default-First-Site-Name\CPOINTDC via RPC
DSA object GUID: d01d6df9-288a-45c9-8cbc-f65ab64ec996
Last attempt @ 2015-03-16 10:47:27 was successful.

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Hey @Tom801,
Welcome to the HP Support Forums!
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X-23
I work on behalf of HP
Please click "Accept as Solution" if you feel my post solved your issue, it will help others find the solution.
Click the "Kudos, Thumbs Up" on the right to say "Thanks" for helping!

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Thanks

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Sure enough logon now takes about 5 seconds, even on the Windows 7 machines (which were only taking a minute or so anyway).
Loopback is the best place to point these to, Pointing them to a public server didn't work, and pointing them at a non routeable private IP didn't work either.
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ipconfig /displaydns you'll see entries for attempts to resolve internal servers themselves, plus lookups relating to the AD domain such as
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This path, Control Panel > Review your Computer's Status > Maintenance > View Reliability History, helped me understand better. What I can not see in the screen shot is what the error message says.
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Thanks, looking forward to hearing from you again.
Please click the Thumbs up icon below to thank me for responding.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.
Sunshyn2005 - I work on behalf of HP

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http://blogs.technet.com/b/nexthop/archive/2013/02/19/using-iis-arr-as-a-reverse-proxy-for-lync-server-2013.aspx
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http://social.technet.microsoft.com/Forums/en-US/lyncconferencing/thread/e5d8d247-4646-4e2a-b6f0-e0fd8b3a5ace
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http://www.microsoft.com/en-us/download/details.aspx?id=35453
Kent Huang
TechNet Community Support

Setup router to router VPN connecting 2 windows domain networks via 2 RV042 routers

I am using 2 RV042 routers. I have created a point to point VPN with Remote Security Group Type= Subnet, using the default IPSec settings.
Under advanced settings- Aggressive Mode, Keep Alive enabled.
Location A- SBS 2011 standard, Servername=SBSServer, Domainname = Smallbusiness.Local, IP address 10.1.10.50
DHCP range 10.1.10.100 to 10.1.10.175. DNS and Print services. No WINS.
Location B- Server 2008 R2, Sername=SBSServer, Domain name=Smallbusiness.Local, IP address 192.168.10.50
DHCP range 192.168.10.100 to 192.168.10.175, DNS, Print Services and Remote Desktop Services. No WINS
I am wondering 2 things. Can I setup the VPN tunnel to route traffice between the 2 networks without changing the server names. Leaving the servernames the same. I have it setup that way but also had netbios broadcast enable. If I disable netbios broadcast will that be enough for these networks to be independent of each other. I was hoping not to have to rename the domain and there are advantages to having the same user and domain name when mapping drives between networks. I have not needed to authenticate those drives or provide credititals for printing either.
2) Should I change the domain name so that each network has a unique domain name or, if I change the servername of the 2008 R2 server will that essentially solve my network issues, the primary issue being that location b has clients that occasionally can not find the 2008 R2 domain controller. After a restart the usually resolve to the correct domain controller.
Essentially what I am asking is what are the best practices to connect 2 separate Windows domain networks via a VPN and have those networks capable of file sharing to the each others domain server and printing to the network printers at both loations.
Should I have separate domain names-
Should I have separate server and computer names-

"reserved not zero on payload" generally means your pre-shared keys don't match. Try removing the "crypto isakmp key ...." line and retyping it in again on both sides. In particular DON'T cut/paste it from one router config into another, this quite often puts a space character onto the end of the key, which the router interprets as part of the key and they therefore don't match.

Virtualised domain network communication issues

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