Author Topic: Who understands computer networking?  (Read 3512 times)

Offline ChallengerHK

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Who understands computer networking?
« on: March 07, 2010 - 10:18:47 AM »
I continue to have electronics failing at a phenomenal rate in my new place. One of the casualties was my router; another was my laptop.

I do a fair amount of work sitting on the couch in the evenings, and I need access to the net to do a lot of that work, so I got a used laptop dirt cheap, cannibalized the hard drive from the old computer, and got a new, cheap (but name brand) router. The old computer had wireless G, the "new" one has wireless B. Finally, I've gone from DSL (infinitely superior, in my so far limited experience) to cable modem.

Here's what I'm running into. With my old setup, about once a week I'd lose the ability to load a web page. The connection was still present, as I had files downloading in the background, but I couldn't load squat in a browser. Unplug the router, wait a few seconds, plug it back in and it would be good to go for about another week.

With the new setup it does the same thing, except it goes out about every two hours.

So...what causes a router to do this? Does it have anything to do with the wireless B v. G distinction? The DSL v. cable modem distinction? And most importantly, is there any way that I can get it to behave better?


"She'll make point five past light speed. She may not look like much, but she's got it where it counts, and I've made a lot of special modifications myself."

- Han Solo, Star Wars

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Offline Bullitt-

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Re: Who understands computer networking?
« Reply #1 on: March 07, 2010 - 10:50:12 AM »
What brand & model router?   Changing the Mac address to cloning seems to be a common resolution. The manufacturers troubleshooting section on the web may be of help.
My son was having connection problems that was resolved by a firmware update to the modem.
Wade  73 Rallye 340..'77 Millennium Falcon...13 R/T Classic   Huntsville, AL
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Offline ChallengerHK

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Re: Who understands computer networking?
« Reply #2 on: March 07, 2010 - 11:24:29 AM »
Thanks for the info, Wade.

Router is a Linksys/Cisco. Don't know the model of the new one off hand; the old one was a WRT54G. I'll see if I can find the MAC settings and look for any updates.


"She'll make point five past light speed. She may not look like much, but she's got it where it counts, and I've made a lot of special modifications myself."

- Han Solo, Star Wars

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Offline Bullitt-

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Re: Who understands computer networking?
« Reply #3 on: March 07, 2010 - 11:56:23 AM »
Another problem I had years ago with our DSL when I added a router. Our DSL modem has a router built in & the second router caused problems that ruined the modem. The tech that came out replaced the modem & suggested I use a switch instead, have gone many years with no issues. I recently added a wireless router & knowing the problems disabled the router function so it is just a switch as well.
Wade  73 Rallye 340..'77 Millennium Falcon...13 R/T Classic   Huntsville, AL
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Offline ChallengerHK

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Re: Who understands computer networking?
« Reply #4 on: March 07, 2010 - 12:38:47 PM »
Okey dokey. The MAC was already set to cloning. I did download and install new firmware, so we'll see what happens there.

What the difference between switching and routing. My main use for this is to get wireless to the laptop; is there such a thing as a wireless switch that's not a router? And if the modem had a router function built in, would it have multiple ethernet ports instead of only one?


"She'll make point five past light speed. She may not look like much, but she's got it where it counts, and I've made a lot of special modifications myself."

- Han Solo, Star Wars

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Offline Bullitt-

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Re: Who understands computer networking?
« Reply #5 on: March 07, 2010 - 01:52:05 PM »
If you really want to know
http://wiki.answers.com/Q/What_is_the_difference_between_router_and_switch

No affordable wireless switch-only but if your router is like mine it can be just a switch if you configure correctly.   
Find the model of your modem & see if it is also a router, if so you may need to reconfigure the router. 
Wade  73 Rallye 340..'77 Millennium Falcon...13 R/T Classic   Huntsville, AL
Screwed by Photobucket!

Offline ChallengerHK

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Re: Who understands computer networking?
« Reply #6 on: March 07, 2010 - 03:44:53 PM »
If you really want to know
http://wiki.answers.com/Q/What_is_the_difference_between_router_and_switch



thanks again. Yep, I really did want to know. In general my attitude on computers is that as long as they're doing what I need them to they can be magic for all I care, but once they stop doing what I need I then need to learn at least enough to fix the problem.

So far it's been running since about noon without a need for a hard restart. I'm keeping my fingers crosses that the firmware upgrade did the trick.

In case it doesn't, my little bit of research said that a disabled DNS relay option could also cause this issue. I couldn't find anything in the router menu system that said DNS relay, but I did find DDNS, apparently dynamic DNS. Can I assume that these are somehow different?


"She'll make point five past light speed. She may not look like much, but she's got it where it counts, and I've made a lot of special modifications myself."

- Han Solo, Star Wars

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Offline ChallengerHK

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Re: Who understands computer networking?
« Reply #7 on: March 07, 2010 - 03:46:50 PM »
New router, BTW, is a WRT54G2. I'm amused by this because it looks completely different than the last one, yet apparently the guts are just an upgrade to the same model.


"She'll make point five past light speed. She may not look like much, but she's got it where it counts, and I've made a lot of special modifications myself."

- Han Solo, Star Wars

Advice Thread - Taking Pictures Of Cars

Offline Bullitt-

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Re: Who understands computer networking?
« Reply #8 on: March 07, 2010 - 03:59:06 PM »
Dynamic DNS is a bit different than DNS, that setting may only be accesable through the menu.
  Found this to access your menu
"if this is a new router then connect it to your system through ethernet cable and go to internet explorer and type 192.168.1.1 at the add. bar it will prompt for the password. leave the user blank and type admin in the password linksys setup page should open."
Wade  73 Rallye 340..'77 Millennium Falcon...13 R/T Classic   Huntsville, AL
Screwed by Photobucket!

Offline ChallengerHK

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Re: Who understands computer networking?
« Reply #9 on: March 07, 2010 - 04:01:17 PM »
Yeah, that's the access I've been using, not the setup software, which tends to just set settings without asking me what I want.


"She'll make point five past light speed. She may not look like much, but she's got it where it counts, and I've made a lot of special modifications myself."

- Han Solo, Star Wars

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Offline ChallengerHK

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Re: Who understands computer networking?
« Reply #10 on: March 12, 2010 - 09:24:04 PM »
OK Wade (or anybody who wants to chime in), I've updated the firmware, and I've switched broadcast channels. The MAC was already set to clone. Still having the same thing; about every two hours it locks.

My web research has yielded the following possibilities:
- the router might be overheating. I am running a torrent downloader in the background. I'll probably turn it off tonight, leave everything else running, and see what happens in the morning. FWIW, the box does not seem hot. Slight warm at most.
- the router has a memory that stores the results of the last several DNS lookups. Enabling DNS relay is supposed to fix this. I don't have a DNS relay enable, but I do have a DDNS enable, which apparently requires me to sign up for some service (don't know if it's free or not). Is the DDNS relay an equivalent for DNS relay? Know anything about the service I have to sign up for?

Anything else I can check?


"She'll make point five past light speed. She may not look like much, but she's got it where it counts, and I've made a lot of special modifications myself."

- Han Solo, Star Wars

Advice Thread - Taking Pictures Of Cars

Offline 1ownr

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Re: Who understands computer networking?
« Reply #11 on: March 12, 2010 - 10:08:10 PM »
what OS are you using? I had trouble with one of my older MACS when it when to the sleep mode and would not "wake up" Had to disable "sleep" mode. Not sure if this is any help.   :dunno:

judy

Offline PlumCrazyRTSE

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Re: Who understands computer networking?
« Reply #12 on: March 12, 2010 - 10:57:21 PM »
What brand of laptop are you using?

If it's a dell, then the frequent disconnect issue is common but there is also an easy fix.
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Offline ChallengerHK

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Re: Who understands computer networking?
« Reply #13 on: March 12, 2010 - 11:18:20 PM »
what OS are you using? I had trouble with one of my older MACS when it when to the sleep mode and would not "wake up" Had to disable "sleep" mode. Not sure if this is any help.   :dunno:

judy

Thanks Judy. I'm using XP on both computers, and my work computer when I use it at home. Don't think it's the computers themselves, as all three experience the loss of web abiliy at the same time, and as soon as the router is rebooted it's all good for another two hours.

What brand of laptop are you using?

If it's a dell, then the frequent disconnect issue is common but there is also an easy fix.

Both laptops (mine and work) are Dell, but my desktop (VPR Matrix) does the same thing at the same time.


"She'll make point five past light speed. She may not look like much, but she's got it where it counts, and I've made a lot of special modifications myself."

- Han Solo, Star Wars

Advice Thread - Taking Pictures Of Cars

Offline PlumCrazyRTSE

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Re: Who understands computer networking?
« Reply #14 on: March 13, 2010 - 12:34:42 AM »
Both laptops (mine and work) are Dell, but my desktop (VPR Matrix) does the same thing at the same time.

I was going to say that with dell laptops there are compatibility issues between dell's wireless connection utility and many routers and disabling the utility and instead using the windows wireless connection feature will typically cure it.  However, if all three of your computers have the same problem at the same time then that's probably not the issue.
1970 Challenger R/T SE, 440 Six Pack, Super Track Pak, FC7 Plum Crazy Purple
1970 Challenger R/T SE, 440 Six Pack, Super Track Pak, FE5 Bright Red