Check on your AD Sites if you have the Subnets setup correctly? Is this a flat layer2 ME or routed/vpn ??
We ran into this on our flat layer-2 where we found hundreds of users getting an AD server over the 1gb ME link for DNS/Logon Server and had to go back and re-do all the subnetting of the server network. Fixing the AD Sites Subnets solved this for us. From: Tom Miller [mailto:[email protected]] Sent: Monday, August 29, 2011 4:34 PM To: NT System Admin Issues Subject: Weird: network slowdown when metro e and Internet unavailable Hi Folks: As a result of hurricane Irene, we lost our metro ethernet links to our sites (7 ME sites) and our Internet circuit went down as well. What was really odd was the internal network here at HQ was impacted by this: I noticed a lag with logons, file system access, print systems, etc. When I attempted to do a simple ping test, all of the Windows 2008 servers (member and DC) were slow to respond and had some missing pings. This was not an issue with our 2003 or non-Windows systems. Same issue wether I used IP address or name to ping. The core switches were not reporting any issues. Thoughts? It went away once our circuits were restored. Only our DNS servers here at HQ have our providers DNS servers as forwarders. I removed them to see if that made a difference. It didn't. Anyone else seen this? Tom Miller Engineer, Information Technology Hampton-Newport News Community Services Board 757-788-0528 Confidentiality Notice: This e-mail message, including attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure, or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to [email protected] with the body: unsubscribe ntsysadmin
