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898 posts

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  # 255459 13-Sep-2009 21:29
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So trying a few things to help me work out what's going on. As above, I know that if the only the main jack is connected to the line then when I use the modem in there I get about 6.5 Mb/s and then when all other lines are connected it drops back down to 2.2 Mb/s. The actual noise ratio doesn't appear to change at all which has me a little confused. I would have thought that with the higher speeds would have been a better noise ratio. This doesn't appear to be the case, but clearly something in the internal wiring to one of the additional jacks is affecting the speed capacity. But this leaves me no further clues as to why my noise ratio is bad. I do plan on wiring the house for a network and will I guess probably replace the phone cables too. I can't do this yet as there's no moeny for such things but at some point it'll happen. Then I'll need advice for cabling etc.
I do have 2 other jackpoints plus 1 that runs out to the garage about 15m away. Should I be thinking about an adsl splitter when I rewire? Or is it not worth it. I'll be adding another jackpoint when I rewire.



898 posts

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+1 received by user: 30


  # 257495 22-Sep-2009 09:13
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CutCutCut: So trying a few things to help me work out what's going on. As above, I know that if the only the main jack is connected to the line then when I use the modem in there I get about 6.5 Mb/s and then when all other lines are connected it drops back down to 2.2 Mb/s. The actual noise ratio doesn't appear to change at all which has me a little confused. I would have thought that with the higher speeds would have been a better noise ratio. This doesn't appear to be the case, but clearly something in the internal wiring to one of the additional jacks is affecting the speed capacity. But this leaves me no further clues as to why my noise ratio is bad. I do plan on wiring the house for a network and will I guess probably replace the phone cables too. I can't do this yet as there's no moeny for such things but at some point it'll happen. Then I'll need advice for cabling etc.
I do have 2 other jackpoints plus 1 that runs out to the garage about 15m away. Should I be thinking about an adsl splitter when I rewire? Or is it not worth it. I'll be adding another jackpoint when I rewire.


Just wondering if anybody has any more ideas on what could be casuing the bad noise ratios? My previous posts have detailed what I've tried. 6.5Mbps was the fastest I could get with all jack points disconnected from the first original one. But my noise ratio was no better. So this makes no sense to me at all. Any other suggestions as to what may be going on? If I rewire the house will I just end up with the same result?
Ta.

 
 
 
 


z2k

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  # 257497 22-Sep-2009 09:22
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Don't be too concerned about the noise ratio. 6.4db is fine as long as you don't experience constant disconnections or drop outs.

I'd say one of the equipments in the house is causing a problem, why not try connecting them back in 1 by1 and rebooting the router each time to check the sync rates?

If you really want to increase your noise margin you can call up the Orcon helpdesk to do so. Increasing the noise margin will lower your max sync rate though. Orcon connections are forced to connect at a lower noise ratio to maximise speed.



898 posts

Ultimate Geek
+1 received by user: 30


  # 257516 22-Sep-2009 10:21
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z2k: Don't be too concerned about the noise ratio. 6.4db is fine as long as you don't experience constant disconnections or drop outs.

I'd say one of the equipments in the house is causing a problem, why not try connecting them back in 1 by1 and rebooting the router each time to check the sync rates?

If you really want to increase your noise margin you can call up the Orcon helpdesk to do so. Increasing the noise margin will lower your max sync rate though. Orcon connections are forced to connect at a lower noise ratio to maximise speed.


Thanks z2k, That would explain why my noise ratio doesn't appear to change, if it's being forced that low. From somebodies else response in this thread I was under the impression that a higher noise ratio would be needed. I haven't yet experienced any  dropouts or problems, other than having a few problems getting onto international sites when I used port fowarding. I have 2 ethernet ports, one I set up to use with port fowarding and I think it had a fixed IP address, I just followed instructions off the net, and it worked perfectly on my old setup with Xnet but doesn't seem to now. So I've just used my other ethernet connection on the motherboard and works perfectly and I don't need the port fowarding much so that's fine, but I do want to investigate what is going on there at some point. But anyways that's another story... haha.

I've tried disconnecting everything that's on the phone line so that the only thing conneted in the house is the modem. I've then connected it to every single jack (4 in total). All with very similar results. Even the phone jack in the garage which runs back from the house roof, under the front yard (10-15m away) and into the garage. Actually that gave a slightly faster result thatn some of the other jacks.
The only way I can get up to 6.5mbps is if I go to the Kitchen jack and disconnect the cable that goes into the roof and connects the other lines.
So I guess that means that I have to go up into the roof and cut each cable (they're joined up with little plastic plug type things) and then connet them back up one by one to see which cable is causing the error? Would there be a btter way to do it?

z2k

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  # 257519 22-Sep-2009 10:34
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What I mean is with the modem connected, plug your phones back in 1 by 1 and and check your sync rates as you connect each one to find out which equipment causes it to drop.



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  # 257533 22-Sep-2009 11:59
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Sorry, I don't think I'm making myself very clear. No matter what is connected or disconnected (ie phones) the speed/stats stay the same. It is only when I disconnect all the phone lines from the demarc (I think this is the right terminology) jack, the main jack that connects to the street, so that only that one jack is 'live' will I get the better speed/stats.

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