Sounds like a bad nic in one of the servers, if I had to guess. Drop a new NIC into them, and try from there... Glenn Sullivan, MCSE+I MCDBA David Clark Company Inc. ________________________________ From: windows2000-bounce@xxxxxxxxxxxxx [mailto:windows2000-bounce@xxxxxxxxxxxxx] On Behalf Of joe haines Posted At: Tuesday, August 24, 2004 11:36 AM Posted To: Windows 2000 Conversation: windows 03 dc's drop connections to other dc Subject: [windows2000] windows 03 dc's drop connections to other dc hello, We have a 2k03 network that consists of: one domain with one site we have 2 physical locations connected via 3 mb wan connection. A dc at each location that functions as a global catalog , dns and dhcp. We are currently experiencing sporadic dropped connections between the dc's in each location. (cant ping other dc ..let alone replicate). We can ping other member servers and client machines from the dc's. It just seems that dcs stop communicating. A reboot of each dc seems to resolve each issue temporarily. Any ideas would be appreciated. thanks, Joe