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Lenght of a Ethernet Wire, and its effects?

post #1 of 22
Thread Starter 
I have a BT Broadband 8Mb/s, every Broadband Tester gives me a result of less than 1.9Mb/s
This is extremly anger provoking, as i am paying for 8 and getting less than 2
I know it also depends on how far you live from your nearest telephone exchange, which i do not know the location of.

However an other factor which i bevlice is an effect of my slow speeds is the lenght of my network/ethernet wire. it is currenly 30 meters long. it is connted to a Netgear DG834G on one end and the other end is connected to my computer. I am not using the full lenght of the 30 meters. would this effect the speed?

I belive this maybe a factor as i know if a network/ethernet wire connected to one computer and an other, if it is over 10 meters it "would not work".
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DeepTought
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post #2 of 22
http://www.bandwidthplace.com/speedtest/
test it with a short length, then the long length.

I seem to remember that +100 feet is when you start encountering problems.
    
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post #3 of 22
Yeah, standard Cat5e network cable shouldn't have any problems at that speed.

You could have some dodgy wiring in your home which is causing the slow speeds. Do you have something like a Sky Box or alarm system plugged into your phone line which could be causing slower speeds?
    
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post #4 of 22
i have a 25 foot (i dont know metric, forgive me) cable running from my router to my sig rig and its working fine.

EDIT:: trueg50 is correct, 100+ feet of constant cable and you will notice some degrading speeds.
post #5 of 22
plus the internet connection is the only bottleneck, given Cat5e's speed. Read the writting on the cable to double check it is cat5, not cat3 that could present a problem.
    
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post #6 of 22
328ft (100m) is the limit (technically) for Cat 5E. I haven't had any trouble with lengths < 300ft. That's not your problem.

Often times, ISP's will advertise their top speed as the given speed. I have 1.5mbps, but sometimes it operates as slowly as 200kbps. Just something you gotta live with, or go with another ISP.
post #7 of 22
call up your ISP and politely explain that it isn't working. expect to be on the phone for an hour, but at the very least, they'll lower your monthly bill.
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post #8 of 22
Call your service provider and have them run an RF audit. Sounds like your docsis signal levels are out of range.

Edit: check out the image attached, this is a good example of a signal issue on a cable modem. See the blue line, thats where this particular person should be.. see the green line.. thats the actual levels going to the modem... this will give you kind of an idea as to what I am talking about.
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post #9 of 22
what are you talking about? i once made a 175 foot ethernet cable from one side of the house to the other side and it worked perfectly, it was commercial IT grade network cable though
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post #10 of 22
Thread Starter 
Thanx Guys

With the
http://www.bandwidthplace.com/speedtest/

I get from .800 to 1.7
when i am paying for 8.0

could this me my router or my ethernet card?

I will be calling my ISP, but from experiance i know they like to blame every living thing on earth before they admit there is something wrong on their side, lol that a but over the top but i mean i know they will say check ur rother reset it upgrade fraimware blah blah blah this is BT by the way in UK
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DeepTought
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