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troubleshooting Question

IP address conflicts Windows server 2003

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crdixon asked on
DHCPMicrosoft Legacy OSNetwork Management
4 Comments1 Solution965 ViewsLast Modified:
Hello, I'm running into an issue when staff outside the office connect via a PPTP VPN or through the SonicWall Global VPN client. They are able to establish the VPN but once connected they are not able to access any network resources. I'm pretty sure it is some type of IP conflict. If I make a static lease reservations in the Windows 2003 server's DHCP service the problem will go away for that client. There is only one DHCP server on this small network. The part that is driving me crazy is that I've got SolarWinds IP address tracker running on my PC. I will consistently see entries in that for the netbios names of machines that were taken out of service long ago. From my very same computer, I will ping the IP address that SolarWinds is referencing and there will be no response for those odd line items. There are often half a dozen of these "phantom" entries. When i force solarwinds to refresh the subnet i'm looking at,  I believe it uses a ping so i don't know why Solarwinds is different than when i do this manually. My DHCP lease duration is set to 8 days. I also scavenged the stale records and cleared the cache in the DHCP service but that didn't seem to help. Thanks experts.
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