Last week I added a DHCP server to our network and switched to dynamic IP addressing instead of static addressing (for both Macs and PCs). Everything seems to have been working OK until yesterday when several of the Macs and PCs had 519 errors (network communication failed) and some of the PCs also had -3155 errors (TCP/IP was interrupted). The backup started at 6:15 p.m., but the errors did not start until after 1:00 a.m. so I know this was not a result of someone busily working on their computer. The only thing that I can think of is that the DHCP lease time on the DHCP server is set to the default of 1 hour; could this be the cause of these errors? Also, I can find NO information on the -3155 errors. There does not seem to be anything in the manual or on the Dantz web site and every time I try to access the archives (http://list.working-dogs.com/lists/retro-talk/) I get an error saying that the file does not exist on the server. Any help would be greatly appreciated. <>< Stiles Watson Director of Information Services The Church Initiative, Inc. www.churchinitiative.org www.divorcecare.org www.griefshare.org _____________________________________________ NetZero - Defenders of the Free World Click here for FREE Internet Access and Email http://www.netzero.net/download/index.html -- ---------------------------------------------------------- To subscribe: [EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives: <http://list.working-dogs.com/lists/retro-talk/> Problems?: [EMAIL PROTECTED]