I know you said you tried everything... does that include making sure the speed/duplex setting match on both ends?
________________________________ From: Paul Everett [mailto:[EMAIL PROTECTED] Sent: Thursday, May 29, 2008 8:37 AM To: MS-Exchange Admin Issues Subject: Dell laptop losing connectivity on network I have a Latitude D620 that started having connectivity issues. It will work just after it's turned on for about 5 minutes and then no network anything (local or Internet). Sometimes it will spontaneously start working again, but usually not. Sometimes if I "repair the local area connection" it will work, but usually that fails also. If I "disable"/"re-enable" the adapter it will always work, but only for a short period of time. When it is happening, I can ping the machine and get a mixture of "replys" and "timeouts". The only error in the error logs is when the "repair the local area connection" fails. I get event id 1003 from dhcp saying, "....unable to renew address from the network..... The following error occurred: The semaphore timeout period has expired. Your computer will try to continue to try and obtain an address............" The Dell tech thought it sounds like a software issue and we tried everything. Reinstalling the nic driver, stopping unnecessary services, ruling out cabling issues, etc. Finally he suggested, for no specific reason, to try the laptop outside of our network. So, I took it home last night and low and behold it worked fine without having any connectivity issues. I was using the same Domain user account. I would love to have some ideas on what may be going on or how to fix this. I have other laptops just like this and they are not having any issues,... yet. Thank you, Paul Everett IS Dept. Lee Mental Health Center 239-791-1551 "Lee Mental Health Center, Inc. providing services through Ruth Cooper Center for Behavioral Health Care and VISTA Behavioral Crisis Services. Visit our website at www.leementalhealth.org <blocked::http://www.leementalhealth.org/> to learn more." Confidentiality Notice: This e-mail message, including any 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, including attachments. ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~