Hi array, Thanks for posting here. Have we recently modified any system setting before this issue ? perhaps we may first try to clean the DNS cache by running the command “DNScmd /clearcache ” and see how is going. An old thread just discussed such similar issue and delivered the solution : http://social.technet.microsoft.com/Forums/en-US/winserverNIS/thread/c592faa2-80f3-4fc4-b1f8-3d1ab974706b/ Regards, Tiger Li TechNet Subscriber Support in forum If you have any feedback on our support, please contact tnmff@microsoft.com.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

I have 3 servers AD 2008r2 with DNS servers and last days there is a high node memory on all of them. I disabled EdnsProbes and set socketpoolsize =1200 instead of default 2500. But nothing change.The node memory stay high. What I have to do to decrease memory usage?

Hi array, Thanks for posting here. Have we recently modified any system setting before this issue ? perhaps we may first try to clean the DNS cache by running the command “DNScmd /clearcache ” and see how is going. An old thread just discussed such similar issue and delivered the solution : http://social.technet.microsoft.com/Forums/en-US/winserverNIS/thread/c592faa2-80f3-4fc4-b1f8-3d1ab974706b/ Regards, Tiger Li TechNet Subscriber Support in forum If you have any feedback on our support, please contact tnmff@microsoft.com.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Hi array, If there is any update on this issue, please feel free to let us know. Regards, Tiger Li TechNet Subscriber Support in forum If you have any feedback on our support, please contact tnmff@microsoft.com.Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.