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Discussion Starter · #1 ·
I truly hope I can explain this problem and get it resolved. I want to use this as a web server for when I am away from home.

I have a:

  • Dell Optiplex running win xp pro, sp 3.
  • intel P4 processor with
  • 1 GB RAM
  • it's connected with ethernet
  • to a motorola SB 900 cable modem for
  • Brighthouse Networks ISP.
  • I am running DYNDNS updater too, to resolve my dynamic ip to a url.

The problem is that every so often I need to manually obtain an ip address by using the repair button in the Local Area Connection Status window. However, I am able to do the repair remotely, so the nic is working. There doesn't seem to be any event that causes the connection to drop either so I am at a loss.

I sure hope someone knows what is going on and how I can fix this. A web server is kind of worthless if it drops connection. I'm not sure I'll be able to remotely connect if I'm not on the LAN.

Thanks a lot in advance :)
 

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Discussion Starter · #3 ·
yes, it is a wired (cat 5 ethernet) connection and I reformatted the hard drive and installed all the latest drivers for all hardware. it has the same problem now as before the format.

I can't find any log entries to explain why (don't really know where to look either) and there are no obvious errors.

I turned off the DHCP Protocol in the motorola sb900 so I can receive an ip address directly from the isp. the Dell optiplex is connected through a switch then the modem. My other computers in the LAN are all routed through a netgear router and they never lose connection.

I hope this is enough information. This issue is outside the limits of my knowledge.

Thanks in advance for any ideas you may have.
 

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ok hold on a sec.

You have this problematic computer connected from the modem to a switch then to the problem computer. You have other computers connected from the modem to the router then to the computers?

Does the problem computer go thru a router or not?
 

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Discussion Starter · #5 ·
no, the problem computer doesn't go through the router. I can't connect it to the router because then I won't be able to pull an ip address from the isp.
 

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Thats odd. Seems to me you should be able to get an IP address for all of your computers going through the router. Do you have your TCP/IP setttings set to use DCHP and automatically get a domain name?
 

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Discussion Starter · #7 ·
yes, when I boot up I am connected with no problem at all. it's only when it's been on for a while.

I also use the "problem computer" for streaming radio. so it is constantly receiving data. Also, it's random, anywhere from a couple of hours to a couple days (this length of up time is rare).

oh, and I do have DHCP enabled.
 

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Discussion Starter · #9 ·
I used LSPFIX.exe and it found no problems. there are only 3 apps that are using the LSP: mswsock.dll, winmr.dll, and rsvpsp.dll. when I googled LSPFIX.exe I found that these are the three default users of the LSP.
lol any other ideas?

Thanks for your help thus far, I really appreciate it.
 

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Discussion Starter · #10 ·
Are there any logs that will record events like this? I am kinda just shooting in the dark here.

Thanks again for all :)
 

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Dumb question, but have you tried testing your physical ethernet cable with a known good one? I had intermittent problems like your talking bout with a bad cable connected to my computer.
 

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Discussion Starter · #12 ·
hehe ;) it's not a dumb question at all. I actually did check the ethernet cable, but not intentionally. I needed a longer cable because I moved my computer and switched cables at that time. I have the same issue with both cables. (both work fine otherwise)
In fact, the Motorola sb900 also uses USB and I tried that with the same problem of just disconnecting from the 'net. No other comp that I connect directly to the modem loses connection either. Do you think I should try a different NIC?
 

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That might not be a bad idea, its just very odd that the three computers work flawlessly and this one always drops connection. I could understand it if it was wireless, but this is a wired connection, which doesn't make sense to me.
 

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Discussion Starter · #14 ·
Thanks Parttime, that's exactly what I was thinking. with my other computers, if there is a disconnect from 'net, it happens because of the router or the modem.
Right now I'm not relying on this system, but I will want a server up and running soon so I will try another NIC. If that doesn't fix this d/c issue then this comp will become a hand me down and I'll build a better system for serving pages.
Thank you so much for your time with this issue. I'm so happy I found this forum.
 
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