Re: Cable modem issues in Windows XP??
From: purplehaz (software_at_for.me)
Date: 03/21/04
- Next message: purplehaz: "Re: can't open exe files"
- Previous message: wojo: "Re: Return of purchase"
- In reply to: Rfdjr1_at_optonline.net: "Re: Cable modem issues in Windows XP??"
- Next in thread: Jim Macklin: "Re: Cable modem issues in Windows XP??"
- Messages sorted by: [ date ] [ thread ]
Date: Sun, 21 Mar 2004 09:18:12 -0500
I think all cable modems are external, but if something was physically wrong
with it it can heat up and then shut itself down to prevent burning out. I
seen this happen enough to mention it. If its the cable co modem, then see
if they will swap it out for a newer one.
The dhcp server is on the cables end. It is the server that issues IP
addresses. Without and ip address you don't get online. When you boot up the
computer the modem goes out and connects to the dhcp server and the server
inturn issues you an ip address(on cable modems it 90% of the time the same
ip over and over). It uses your mac address of the modem(or nic sometimes)
to verify who you are then looks up in a "table" what ip you should get and
gives it to you. Again I'm not a expert so this is in simple terms. I'vee
seen where the server thinks everyone is the same person and keeps giving
the same ip to many people. This in turn knocks off the last person that had
that ip address, cause two people can't have the same address.
Try the mtu tweak. If you can't get pcpitstop to work just search google for
MTU tweaks or cable modem speed tweaks. Could be your just experienceing
high packet lose and a tweak of the mtu may help.
Rfdjr1@optonline.net wrote:
> Okay, another reply several posters. I ran SpyBot and Adaware and the
> system is clean. Also, it's an external cable modem, so I don;t think
> heat is an issue. It's well ventilated where it is.
>
> Someone did suggest I look at the event log. I'm new to Wijndows XP,
> but I found the log and gave it a look and see nothing that I would
> consider relevant. But again, I'm not up on this. What exactly would I
> be looking for?
>
> What is the dhcp server you mention? That's at the cable company's
> end, right? I don;t think it's the network card because I've tried two
> PCI cards as well as the RJ45 connector on the motherboard. Same
> problem with each one. Also, trying two PCI cards, and the RJ45 jack
> which uses the PCI bus according to the motherboard techie, if ti was
> a PCI bus issue, then my other PCI cards would be causing me problems,
> which they're not. I'll check the tweak at PCPitstop, but the last
> time I went there, I couldn't do anything. The tests kept freezing on
> me for some reason. Thanks again for all the help and suggestions.
>
>> Ok, now I'm leaning with you, to a prob on your end. Could be a
>> coincidence, but unlikely. Also if your lights are good, then it
>> probably isn't a node. Maybe the dhcp issue I mentioned is worth
>> looking into. In a six month period working for comcast I saw their
>> dhcp server issue same ip's five different times. Almost once a
>> month, so its not impossible.
>> When the connection drops do you still have an ip address that's
>> valid? If not maybe when your computer tries to renew it lease its
>> timing out. That could be a network card prob or dhcp server.
>> Have you tried the usually things, like virus scans and spyware
>> removal? Try the mtu setting tweak:
>> http://www.pcpitstop.com/pcpitstop/autofix.asp?file=IntSpeed.hta
>> Update drivers on network card.
>> Update modem firmware if available.
>>
>> I'm no expert, I only did cable support for 6 months, post back if
>> you try anything, I'll post if I come up with more.
>>
>> Rfdjr1@optonline.net wrote:
>>> Thanks. I'm answering a couple of replies here.
>>>
>>> The modem is about four years old and never been upgraded. When the
>>> drop out occurs the lights on the modem indicate connectivity, same
>>> with the ethernet card. I have had the cable outdoors go bad a
>>> couple of times. Once a squirrel apparently ate through the
>>> insulation. Another time water got into the splitter, froze, and
>>> broke the splitter apart. After they were fixed, everything worked
>>> fine. The thing this time is the timing. One night, on my old
>>> system, all was fine. The next day, I built the new system, hooked
>>> up, and the problem started. That's why I figured it was with the
>>> new system somehow. Hardware, software, whatever. Maybe it was just
>>> coincidence, as much as I don't believe in coincidence. Also,
>>> here's a post I just made to a cable related group. Maybe it's
>>> pertinent:
>>>
>>> ------------------------------------------------------------------------
-- >> --------------------------------- >>> I've been having problems since building a new system last month: >>> >>> ASUS P4C800 Deluxe board >>> 1Gb RAM >>> Windows XP Pro >>> Intel 3.2Ghz processor >>> >>> I use Optimum Online cable modem service. >>> >>> Since building the new system, my connection drops out several >>> times a day. Never while I'm actually doing something, but if I go >>> from one program to another, i.e. Agent to Netscape or AOL, >>> suddenly the connection is gone and I have to reboot to get it back >>> (release/renew doesn't work). >>> >>> While checking the modem, I noticed two attenuators hooked up in >>> line. I then remembered the cable tech putting them there about two >>> years ago for a problem I had back then on a different system. I >>> don't even remember what the problem was. The attenuators say 6dB >>> and 3dB. I took them off to see what would happen. So far my speeds >>> seem good. I haven;t lost the connection yet, but then it's >>> sporadic at best, and I could lose it after posting this note. >>> >>> My question is what are these attenuators, and what do they do? And >>> do I need them? Thanks for any help. >>> >>>> No, there are no known or common issues like this is xp. When this >>>> happens are you losing sync on the modem an out or flashing cable >>>> light? Does the pc light ever go out? Usually line drops and >>>> disconnects on a cable modem are on the isp side. Possible that the >>>> modem is overheating, but most likely they have a server or node or >>>> line going bad. Sure the isp says no problems on there end, that >>>> what they're trained to say. I worked support for comcast cable >>>> before and even when we knew there was a problem, we were not >>>> allowed to say so. I have road runner cable now and about two years >>>> ago I had a similar problem. Everyday the modem would lose sync and >>>> would not reconnect for hours or days sometimes. The isp said >>>> there's no prob, but I knew better. I demanded that they come out >>>> to my house and check the line, modem, and nodes in the area. Sure >>>> enough they found a cable that needed replacing. A day or so later >>>> it was fixed and all was well. Call your isp again and have them >>>> come to your house and check it out. If you get a lazy tech and he >>>> doesn't find anything, call again and have another come out. Make >>>> sure they check your setup, your modem, do a line test inside and >>>> outside the house, and check the nodes in the area. >>>> I also say a problem once where the dhcp server was giving out the >>>> same ip address to many different people. If the dhcp gives you an >>>> ip and then someone comes online and the dhcp gives them the same >>>> ip, then you get knocked off. Ask the techs about the dhcp server >>>> status as well. >>>> You could try tweaking the MTU setting, but that's usually used to >>>> help with slow connections, not no connection. >>>> >>>> Rfdjr1@optonline.net wrote: >>>>> Since I built this new system last month, and started using >>>>> Windows XP Pro, my cable modem connection drops out periodically. >>>>> I've been in touch with the cable company who can find no >>>>> problems, and also with the motherboard manufacturer who couldn't >>>>> find a problem. The drop out occurs both with the onboard cable >>>>> connection as well as a PCI fast ethernet card. Is this a known >>>>> issue with Windows XP Pro? Are there tweaks or adjustments that >>>>> need to be made? I never experienced this problem before the new >>>>> system and XP Pro. For the record, I have an Asus P4C800 Deluxe >>>>> board, Intel 3.2Ghz processor and 1Gb RAM. Thanks.
- Next message: purplehaz: "Re: can't open exe files"
- Previous message: wojo: "Re: Return of purchase"
- In reply to: Rfdjr1_at_optonline.net: "Re: Cable modem issues in Windows XP??"
- Next in thread: Jim Macklin: "Re: Cable modem issues in Windows XP??"
- Messages sorted by: [ date ] [ thread ]
Relevant Pages
|
