lieb39 Posted December 5, 2003 Share Posted December 5, 2003 Hello everyone, Just was looking at the specs of my cable modem when i discovered that it has 35 Signal to Noise Ratio, is this normal, too much, too less, etc. If there is a problem, how do I fix? Thanks, lieb39 Link to comment Share on other sites More sharing options...
poind Posted December 5, 2003 Share Posted December 5, 2003 Don't know if you're using the exact same Surfboard model, but mine (not *too* long after actually having been checked/optimized by cable company following issues with a cable physically decaying outdoors) shows: 34-35 depending upon when I refresh readout. Sounds like you're in normal / optimized range as far as I can tell (though my other numbers can vary a tad). Link to comment Share on other sites More sharing options...
leedogg Posted December 5, 2003 Share Posted December 5, 2003 not a clue, but mine reads 33 with a -9 dB power level....I wonder if this is good or bad... Link to comment Share on other sites More sharing options...
Steven Posted December 5, 2003 Share Posted December 5, 2003 Hello everyone,Just was looking at the specs of my cable modem when i discovered that it has 35 Signal to Noise Ratio, is this normal, too much, too less, etc. If there is a problem, how do I fix? Thanks, lieb39 Call cable company, ask for line test. if they see a problem they will come out and fix it for you. Link to comment Share on other sites More sharing options...
-=SD=- Posted December 5, 2003 Share Posted December 5, 2003 the 35 and -4 are both good. I think anything over 33 is good, and for power if it falls into -15 to 15 then it's good. You have to scroll down for upload power, I think that has to be under 50 and it's good. Link to comment Share on other sites More sharing options...
mikey Posted December 5, 2003 Share Posted December 5, 2003 yea, ive got about that: Link to comment Share on other sites More sharing options...
lieb39 Posted December 5, 2003 Author Share Posted December 5, 2003 Ok, maybe someone can help me. My connection is uncapped, because that is what I pay for, its on the plan. But yet, the fastest I've ever downloaded has been 200k, and that was from the local ISP server. Something wrong? -lieb39 Link to comment Share on other sites More sharing options...
-=SD=- Posted December 5, 2003 Share Posted December 5, 2003 who is your ISP? The 200k mark makes it seem like it is 1.5Mbps service, Also check out dslreports.com under "our tools" have some good tweak tests and speed tests there, go through them to see what it's like. Link to comment Share on other sites More sharing options...
lieb39 Posted December 5, 2003 Author Share Posted December 5, 2003 In Australia, Telstra's Bigpond [ http://www.bigpond.com/ ] Anyone have a report for Australia? -lieb39 Link to comment Share on other sites More sharing options...
-=SD=- Posted December 5, 2003 Share Posted December 5, 2003 It doesn't give a speed of the "available network", so you could possibly be getting the most out of it. http://www.dslreports.com/drtcp See the pic? Download that top file zip, open it up, change the values to that picture, save it and restart your pc. Download something now and see if there is a difference. If you do notice a somewhat big change, you could try upping the 32,767 number, just double it. Link to comment Share on other sites More sharing options...
lieb39 Posted December 6, 2003 Author Share Posted December 6, 2003 Big difference. I just doubled it.. going to restart now. -lieb39 Link to comment Share on other sites More sharing options...
DsnBehind Posted December 6, 2003 Share Posted December 6, 2003 Downstream SNR shows the strength of the signal to your cable modem as compared to the noise on the line (signal/noise). If the noise level increases the SNR value decreases. So, then high levels are good for the SNR. This number should be at 30 or more. If the SNR goes below 30 than you will probably start to experience some? problems, such as intermittent connection, packet loss, etc. Downstream Power[/b]> shows the power of the signal your cable modem is getting. The level of the downstream power should be-15 to 15 dB> according to most manufacturers' specs... However, it isbest> for that level to be in the-8 to 8> range. Upstream SNR[/b]> shows how much signal the head end is getting from your cable modem, compared to the noise level. "Head End" refers to the point of reference that is the central point of the local network of your service provider. Anythingabove 29> is good. Just like the download SNR if the noise level increases the upstream SNR decreases. Upstream Power[/b]> shows the level of the signal from the cable modem to the provider. This number should belower than 55dB>. The lower the number, the better your connection. http://www.speedguide.net/read_articles.php?id=1197 Link to comment Share on other sites More sharing options...
lieb39 Posted December 6, 2003 Author Share Posted December 6, 2003 It doesn't give a speed of the "available network", so you could possibly be getting the most out of it.http://www.dslreports.com/drtcp See the pic? Download that top file zip, open it up, change the values to that picture, save it and restart your pc. Download something now and see if there is a difference. If you do notice a somewhat big change, you could try upping the 32,767 number, just double it. Downloaded that program, ran it, put all the settings in that were in the picture, restarted my pc and i got a very fast connection of 14070 CPS. I took your advice and doubled the TCP Recive window to 65534, restarted and than the test, got a very dissapointing speed of 2980 CPS. I put the setting back to 32767 like before, restarted and I got a dissapointing 6010. How do I get it fast like the first time I changed the setting? What about all those other settings in the window? BTW: I used http://www.cyberwizards.com.au/modemspeed/ to test my connection [second test, the Large Graphic test] Thanks, lieb39 Link to comment Share on other sites More sharing options...
bangbang023 Veteran Posted December 6, 2003 Veteran Share Posted December 6, 2003 Check how many devices you have hooked up to your line. The cable guy, when he installed my digial IO, was suprised because they never installed a dedicated line for my cable modem and it was killing the thing. He gave us another line and put 2 cable boxes on it just to lighten the load on the other line. Link to comment Share on other sites More sharing options...
-=SD=- Posted December 6, 2003 Share Posted December 6, 2003 Remember to set that MTU to 1500 incase you didn't do that. Could be just less traffic at the time of the first test, I would leave it at the 32k number as that seems to be your best result. Your speed is more dependent on the network speed instead of an garaunteed speed so I suppose it could vary more than a normal dsl/cable line that lists the download speed. I got 52460 cps on that test (not sure what cps is, never heard it explained like that?) So I am guessing the speed of your connection isn't that fast, maybe it's a 1.5 speed or close to a t1 setup. Does your provider have a speed test in which you download direct from them? Link to comment Share on other sites More sharing options...
lieb39 Posted December 6, 2003 Author Share Posted December 6, 2003 Oh, only 1 device on that cable output. I have two televisions that use the cable, and thats it. They put a crapload of stuff on the cable, because our driveway was long haha. Anyways.. three for the WHOLE line for my house. Will it actually make a difference if the tv's are on or off? haha -lieb39 Link to comment Share on other sites More sharing options...
-=SD=- Posted December 6, 2003 Share Posted December 6, 2003 It shouldn't lol I am not sure how it's setup tho, maybe someone from there with same ISP can chime in with his/her own test. Link to comment Share on other sites More sharing options...
lieb39 Posted December 6, 2003 Author Share Posted December 6, 2003 Remember to set that MTU to 1500 incase you didn't do that. Could be just less traffic at the time of the first test, I would leave it at the 32k number as that seems to be your best result. Your speed is more dependent on the network speed instead of an garaunteed speed so I suppose it could vary more than a normal dsl/cable line that lists the download speed.I got 52460 cps on that test (not sure what cps is, never heard it explained like that?) So I am guessing the speed of your connection isn't that fast, maybe it's a 1.5 speed or close to a t1 setup. Does your provider have a speed test in which you download direct from them? Holy crap.. how did you get 52460 cps? That kills me haha. What are your settings, you use Dr. TCP, any other applications, internet connection, and finally, you on a network, if so, how is it shared? -lieb39 Link to comment Share on other sites More sharing options...
-=SD=- Posted December 6, 2003 Share Posted December 6, 2003 Mine is a 3Mbps cable connection, I suppose that is good, tho there are better like OOL which is 10Mbps! :) I think yours is actually close to what it should be, on some servers it will probably be better but I think that is where it should be, just keep that top number at 32k and the MTU at 1500 and you'll be set. Link to comment Share on other sites More sharing options...
lieb39 Posted December 6, 2003 Author Share Posted December 6, 2003 Well, its a bit faster now. I restarted again and ran the test, this time I got 9710, than ran it again and i got 8010.. Seems that it changes a lot. I'm going to download a file off my local ISP server with IE normal download manger, see how fast that goes. I will post the results. -lieb39 Link to comment Share on other sites More sharing options...
DsnBehind Posted December 6, 2003 Share Posted December 6, 2003 52460 is nothing... :shifty: Link to comment Share on other sites More sharing options...
lieb39 Posted December 6, 2003 Author Share Posted December 6, 2003 Honestly, how do you get that? Damn it..grrr -lieb39 Link to comment Share on other sites More sharing options...
-=SD=- Posted December 6, 2003 Share Posted December 6, 2003 52460 is nothing... :shifty: Show off :p Link to comment Share on other sites More sharing options...
DsnBehind Posted December 6, 2003 Share Posted December 6, 2003 No tweaks. Just default settings on Comcast's new 3 megabit service. :D Link to comment Share on other sites More sharing options...
-=SD=- Posted December 6, 2003 Share Posted December 6, 2003 Maybe I got routed badly to that place :/ (same comcast cable hehe) Link to comment Share on other sites More sharing options...
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