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Domain Controller loses RDP from Client - Request timeout on the server happens randomly

Hi

We have windows 2008 DC, which is a GC. I normally keep the RDP session of the DC opened on my PC and  randomly i loose the RDP connection particularly with this server.It says you have lost the RDP with the server and it attempts to connect and it dosent connect.Again i need to close the error and open the new RDP

If i ping from my to the DC to the adjacent server and default gateway without packet load it pings. But if i give a packet load of 30000 with continious ping  it  drops the packet and there is request time out happening randomly.  
ping dc -l 30000 -t  

NIC Teaming hads been done on this server. Any ideas how  to trouble shoot this will be useful.

Thanks
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lianne143
Asked:
lianne143
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1 Solution
 
SebastianAbbinantiCommented:
Check the configuration of the NIC teaming. I have seen one NIC go bad, and the server will periodically lose its connection. It specifically stops transmitting on the Virtual MAC address established by the Team. Try breaking the team and see if the issue persists.

You may also want to check the event logs for clues.

Thanks,
S.
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lianne143Author Commented:
I checked the event viewer , and i cant find any error during that instant of request time out.

Thanks
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SebastianAbbinantiCommented:
I would suggest breaking the team and see if the problem persists.

Thanks,
S.
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lianne143Author Commented:
Ok I will do that and post you the results

Thanks
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lianne143Author Commented:
Teaming is done on the secondary DC  and Exchange as well. It is recommeded to remove the teaming on  these servers as well.

Thanks
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lianne143Author Commented:
It is HP DL380 G5. I uninstalled the NIC teaming .The server asked for a reboot and after the rebooted i configured the servers previous static IP address and it says there is ip conflict. I dont know if there virtual network adapter  and i dont know how remove. Please help any tutorials appreciated.Its my DC and the network is down
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SebastianAbbinantiCommented:
Ignore the warning. Its just telling you that the virtual teaming adapter has the same IP address as the IP address you are assigning to a physical NIC. It doesn't matter because the physical NIC has to be part of the Team anyway. The point is moot.

Thanks,
S.
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lianne143Author Commented:
I ignored the warning and i did a ip config it is giving me APIPA address and if if browse any network folders it says path cannot be found.Please help
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lianne143Author Commented:
I kept trying giving Static IP address and it took the ip address and it didnt give any conflict. But in the  network activity on the system tray i can see a yellow exclamation mark. If i double click on it It brings up with a network sharing window

Access  --  Limited connectivity

Connection --Local area connection   - View ststus


If i click view status i get a local area connection status

IPV4 connectivity - Linited
IPV6 Connectivity - Limited
Media state -Enabled
Speed 1.0 Gbps



If i go to the Adapter properties and under advanced the followin  are set to.

Ethernet@wirespeed - Enable
Flow control-        Disable
IPv4 Cheksum- TX/Rx -Enabled
IPv4 Large Send offload- Enable
Priority& Vlan- Priority & Vlan- Enabled
Recaeive side scaling- Enable
Speed and Duplex -  Auto
TCP Connection offload(IPv4)-Enable
TCP Connection offload(IPv6)-Enable
Vlan ID -0


After removing teaming this server pings the adjacent servers sucessfully with higher packet load.
There is no packet drop at all!!

But my only concern is why the LAN activity shows Yellow triangle exclamation mark with limited connectivity message.

Is it because NIC Teaming is done on other DC and most of the servers.

When i had a look at the local area connection status on a similar server where Teaming is done.I saw the speed is 2Gbps
IPV4 connectivity - Internet
IPV6 Connectivity - Local
Media state -Enabled
Speed 2.0 Gbps


Thanks!!
LAN--Device-Manger--show-hidden-.png
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SebastianAbbinantiCommented:
If You disable the unused, unconfigured, NIC on the server, the yellow triangle will go away. As for the other dc, remember if the switch isn't configured properly, you will only get 2Gbit on transmit, not receive.

Thanks,
S.
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