Bob, Your comment about the IP release/renew rang a bell for me. We had intermittent slowness or inability to send mail or access Internet sites, but never all users. In our case, the release/renew almost always fixed it, as usually our internal DNS server responded first. The problem only occurred when an outside one beat ours to the response. I doubt that this applies to you, since you said all users are slow, but I'll throw it out just in case. Here are my notes on it, with credits to MS PSS:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Problem: Users in a Windows 2000 domain intermittently lose ability to access servers by FQDN. Ipconfig Release/Renew fixes it temporarily. Analysis: DNS server references and relationships were set up wrong. The DHCP server was publishing three DNS servers - primary was an internal DNS server which could resolve local server names, but 2nd & 3rd DNS servers were ISP's, which had no knowledge of hosts in our private domain. Solution: Change the DHCP server to publish only addresses of internal DNS server(s). Change the DNS server(s) to forward DNS queries they can't resolve, to the ISP's DNS server(s). Follow these steps: 1. In the TCP/IP properties /Advanced, of each Windows 2000 server, remove references to external DNS servers. 2. For mixed-mode domains, in TCP/IP properties /Advanced, of each Windows 2000 server that is running a WINS server, change its WINS to refer only to itself. For W2K servers not running WINS, point them to an internal WINS server. 3. In the DNS Administration app on each Win2K DNS server, go into properties of the server, then in the Forwarders tab, check "Enable forwarders" and add the IP addresses of the ISP's DNS servers. 4. Still in the DNS Admin app, go into the properties of the forward lookup zone, in the General tab, and set "Allow dynamic updates?" to "Yes". 5. In the DHCP server, in Server Options, configure options 005 Name Servers, and 006 DNS Servers, to publish only the IP address(es) of the internal DNS server(s). 6. Bounce the DHCP Server service. 7. Ask all users to do "ipconfig /release" then "ipconfig /renew". A script is handy for this. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - HTH Bob Peitzke Information Systems Manager Sander A. Kessler & Associates Santa Monica, CA, USA -----Original Message----- From: Bob Falkenberg [mailto:[EMAIL PROTECTED]] Sent: Thursday, April 11, 2002 11:17 AM To: MS-Exchange Admin Issues Subject: RE: Outlook very slow sending messages with attachments. I ran Optimizer has as the guys suggested and saw no changes. If you believe it and I can't tell you why this is making a difference but releasing an renewing the IP address on the Outlook Client PC fixes the slow down. I have people with 30 second lag in calendar that disappears when they do this. Needless to say its driving me nuts. Bob F. -----Original Message----- From: Cross, Tom [mailto:[EMAIL PROTECTED]] Sent: Thursday, April 11, 2002 11:13 AM To: MS-Exchange Admin Issues Subject: RE: Outlook very slow sending messages with attachments. I disagree, show me where it says anything about database size or mailbox size? I understand the logic if you run optimizer and set it for 26-50 users and you exmerged 60 users. Running it then may give you something. -----Original Message----- From: William Lefkovics [mailto:[EMAIL PROTECTED]] Sent: Thursday, April 11, 2002 1:41 PM To: MS-Exchange Admin Issues Subject: RE: Outlook very slow sending messages with attachments. It does a lot. http://support.microsoft.com/default.aspx?scid=kb;EN-US;q266051 William -----Original Message----- From: Cross, Tom [mailto:[EMAIL PROTECTED]] Sent: Thursday, April 11, 2002 10:35 AM To: MS-Exchange Admin Issues Subject: RE: Outlook very slow sending messages with attachments. Can you explain why the optimizer would make a difference. I thought it only went on number of mailboxes? Is it smart enough to look at current sizes and allocate resources based on that data. Just wondering for future reference. Thanks, Tom -----Original Message----- From: William Lefkovics [mailto:[EMAIL PROTECTED]] Sent: Thursday, April 11, 2002 1:29 PM To: MS-Exchange Admin Issues Subject: RE: Outlook very slow sending messages with attachments. Good call. -----Original Message----- From: Martin Blackstone [mailto:[EMAIL PROTECTED]] Sent: Thursday, April 11, 2002 10:25 AM To: MS-Exchange Admin Issues Subject: RE: Outlook very slow sending messages with attachments. Did you run the Exch optimizer after importing all that mail? -----Original Message----- From: Kevan Dickinson [mailto:[EMAIL PROTECTED]] Sent: Thursday, April 11, 2002 10:18 AM To: MS-Exchange Admin Issues Subject: Outlook very slow sending messages with attachments. Last Weekend I installed a new Exchange 5.5 sp4 Server on a win 2K sp2 Compaq Server. 778mb ram 1.2 Ghz Processor 34GB hard drive. It much more powerful than the old box. I exported all users mail to PST's and then imported them back into the new set up after pointing their Outlook clients at the new Exchange Server. Our domain environment is still NT4 although we now have 3 Win 2k Servers doing various jobs. All the clients are outlook 2000 on win 2k Pro. However all users are experiencing difficulty sending email with attachments both internal and external. It takes 20 seconds to a couple of mins to send a mail with an attachment. What have I missed during my migration?? Kevan Dickinson Network Engineer Oxford Natural Products Plc The Stable Block Cornbury Park Charlbury Oxfordshire OX7 3EH Tel: +44 1608 813300 Dir: +44 1608 813333 Fax: +44 1608 813301 www.oxfordnaturalproducts.com Company No: 3554809 ***************************************************************** This email has been checked by the altohiway e-Sweeper Service ***************************************************************** List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm List Charter and FAQ at: http://www.sunbelt-software.com/exchange_list_charter.htm
