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Subject Topic: my ping problems (Topic Closed Topic Closed) Post ReplyPost New Topic
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greg
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Posted: 08 December 2004 at 5:18am | IP Logged  

Ok hardware will do i guess. As a few people have noticed, my ping recently has been cack. Reet shoddy like all over the place between 60-200ms. (to uk servers). I thought a housemate was always draining bandwidth, but it seems not. The setup is

The cable modem is in my bedroom, there is a length of about 10-15m cat5 upstairs to a 4port router. I then have 30m of cat5 plugged into the router which runs back down to my bedroom. We have a 4port hub plugged into the router and a total of 5 computers plugged in (3 in router and 2 in hub at the moment I think).
However, I tried plugging my PC straight into the modem, and found I had a constant ping of 25ms.
So could the problem be the distance of cable I have connected to the router?
Or is the hub interfering at all? (bearing in mind I'm not connected to the hub)

or anything else? its right pissing me off.

cheers

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ChiefPFF
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Posted: 08 December 2004 at 8:53am | IP Logged  

sorry m8 im a bit confused. You have your modem on your pc, which is plugged into the hub? or yiou have a modem router and a hub? or what? maybe do us a diagram?
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greg
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Posted: 08 December 2004 at 9:20am | IP Logged  

ok hopefully this clears things up!

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TheGouldFish
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Posted: 08 December 2004 at 11:50pm | IP Logged  

yueh it does I spotted the word telewest and ran.

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Richie
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Posted: 09 December 2004 at 3:44am | IP Logged  

stick to stealing your neighbours wirless connection :)

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greg
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Posted: 09 December 2004 at 6:30am | IP Logged  

hehe might have to !

telewest suck assssss.

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Harv
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Posted: 09 December 2004 at 7:00am | IP Logged  

It is the length of the cable dude.

Cat 5 UTP cables have an attenuation of around 100m.
This doesnt mean that they will suddenly stop working after 100m, this means that the signal will gradually degrade to 0 after 100m without a repeater.
Given you have almost 50m between you and the connection, it would appear to me that many packets are being lost during transmission, need to be sent again, and so therefore increase your ping time. Having the UTP cable close to power lines will also affect the signal.
Get a shorter cable, go wireless, or add a repeater every 10 meters or so.
Also check to see if the router has a repeater built in. If so, you will only need to replace the 30m cable.

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Puss
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Posted: 09 December 2004 at 8:12am | IP Logged  

Harvs the man.

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greg
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Posted: 09 December 2004 at 6:18pm | IP Logged  

well ive replaced the 30m with one more like about 10m and it doesnt seem to have made a difference...

i cant shorten the length between modem and router as it needs to be that long.

im stuck for ideas now.

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cannedfool
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Posted: 09 December 2004 at 8:00pm | IP Logged  

if any other pc is using the internet then u will loose ping as u have multiple ips requesting packets while will slow it down..

 

wire lengths should make a difference u would be more likely to loose packets

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Nhumrod
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Posted: 10 December 2004 at 2:18am | IP Logged  

tbh I doubt the cable length is making all THAT much of a difference. AT work we have computers on longer cables than that without repeaters and they dont have issues. What I would suggest is that its another PC on the network. Have you tried disconnecting everyone else from the main hub and then seeing what your pings are like? Theres some software you can use to connect to your router to monitor traffic through it... its called MRTG and you can get it here:

http://people.ee.ethz.ch/~oetiker/webtools/mrtg/

It could also be an issue with the router itself, does anyone else have issues, have you tried switching the cabling around on the router to check its not specific ports? I know ross had a similar problem with their router which they eventually replaced and all was working fine after...



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TheGouldFish
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Posted: 10 December 2004 at 10:23am | IP Logged  

well our's is working to a point at the moment (the router "loses" our connection about twice a day).

but what I would guess is check these things:

1. only have your computer on the network and see if that helps.

2. get netlimiter on all the computers on the network and have them limit there upload stream.

3. if you have edonkey or emule runnign make sure that the connctions is no bigger then 65 (with emule try lowering the hard limit as well).

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greg
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Posted: 17 December 2004 at 6:45am | IP Logged  

Well having played around and changed both the relevant cables, played with all possible settings etc etc...

...its all pretty good now:

 

Pinging ws10.warservers.com [80.168.35.10] with 32 bytes of data:

Reply from 80.168.35.10: bytes=32 time=26ms TTL=117
Reply from 80.168.35.10: bytes=32 time=26ms TTL=117
Reply from 80.168.35.10: bytes=32 time=27ms TTL=117
Reply from 80.168.35.10: bytes=32 time=26ms TTL=117
Reply from 80.168.35.10: bytes=32 time=27ms TTL=117
Reply from 80.168.35.10: bytes=32 time=26ms TTL=117
Reply from 80.168.35.10: bytes=32 time=26ms TTL=117
Reply from 80.168.35.10: bytes=32 time=26ms TTL=117
Reply from 80.168.35.10: bytes=32 time=30ms TTL=117
Reply from 80.168.35.10: bytes=32 time=27ms TTL=117

Ping statistics for 80.168.35.10:
    Packets: Sent = 10, Received = 10, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 26ms, Maximum = 30ms, Average = 26ms

Funnily enough it all seemed to sort itself out about the time our connection got upgraded from 750k to 1mb

So Telewest doing the work was hopefully causing the probs.

All well at least its ok now, fingers crossed.

edit: the only problem now is the upload - still 128k. wish they'd up that just to 256k would be nice.



Edited by greg on 17 December 2004 at 7:21am
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Harv
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Posted: 17 December 2004 at 10:44am | IP Logged  

Well, i feel kinda silly being wrong.
I guess once a year isn't so bad! :P
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