Is this an AD environment or peer to peer? You didn't mention local DNS servers so I'm assuming it's peer to peer. "Anyway, what I found was that ipconfig/all showed that it had an appropriate IP address, SNM, DG and DNS servers listed" Comcast DNS servers listed as DNS pri/sec on the LAN clients? Really? Why not a local DNS server on the LAN for resolution?
Cheers. On Thu, Sep 24, 2009 at 3:38 PM, Len Hammond <lenhammo...@gmail.com> wrote: > Good morning folks, > > Recently, at a new customer who just upgraded from dial-up to cable, they > havn't been able to use the cable connection - it just didn't work. > Apparently Comcast wasn't able to help them, so I got the call. Anyway, what > I found was that ipconfig/all showed that it had an appropriate IP address, > SNM, DG and DNS servers listed. IE or FireFox couldn't find any sites on the > web. From the workstation I could ping the DNS servers and any other site I > knew the address of but could not ping anything by name. Suggesting that DNS > wasn't working. > > So, I installed their new firewall/router and after a call to Comcast to > get them to reset the cable modem, (the router refused to accept the > connection from the modem) the router started working. As this modem also > has the voice channel in it, when they reset the modem we lost our phone > call with them. Anyway the modem and the router were functional after that. > My laptop worked fine and could surf without problems. Their PC however was > like before, even after reboots and ipconfig/all showing the DHCP > configuration from the router that worked with my laptop. > > My conclusion is that something is wrong with the IP installation. It was > here that the owner mentioned the possibility of virus infection as their > Kaspersky subscription has expired. I thought about trying to unload and > reload the IP stack, but then realized that I have never done that to an XP > box, just done it with a rebuild. And with an unknown virus condition that > is still my preferred option. They are going to move all data files to an > external hard drive, plus they found all the OEM disks so a rebuild is > likely in the near future > > Bottom line: At this point, I believe there is something wrong with the IP > stack on the PC. But I am curious as to where to go to just refresh the IP > stack, never having done just that. In my XP pro sp3 desk machine here, the > option to uninstall IP from within the Network applet in Control Panel is > greyed out. > > Any thoughts would be appreciated, before I nuke the client machine to > start over. Although that is probably my best option considering the unknown > virus condition; especially since they could not tell my why they think it > is possible to have a virus (or whatever). It's so cluttered that it runs > slow enough to justify a refresh on that point alone. > > > Len Hammond > CSI:Hartland > lenhamm...@gmail.com > > > > > > ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~
