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    Are these speeds correct?

    This is a discussion on Are these speeds correct? within the Sky Broadband help forums, part of the Sky Broadband help and support category; Hi, I've recently switched from BT broadband to sky. Connecting was very easy - much easier than I thought but ...

    1. #1
      squimmy's Avatar
      squimmy is offline Sky User Member
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      Are these speeds correct?

      Hi,

      I've recently switched from BT broadband to sky. Connecting was very easy - much easier than I thought but i'm not so sure about the speeds i'm getting.

      My download speeds are quite shaky, sometimes they dwindle at 2000kbps, yet then they can shoot up to 8000kbps. My stats are as follows:

      System Up Time 00:45:08
      Port Status TxPkts RxPkts Collisions Tx B/s Rx B/s Up Time
      WAN PPPoA 42148 69243 0 2527 34232 00:29:16
      LAN 10M/100M 112112 69851 0 39218 3506 00:45:06
      WLAN 11M/54M 845 0 0 69 0 00:44:56

      ADSL Link Downstream Upstream
      Connection Speed 13372 kbps 764 kbps
      Line Attenuation 21.0 db 11.9 db
      Noise Margin 6.9 db 11.5 db




      Is ~8000kbps what I should be getting, or can I expect more?

      BTW, i'm on the max package.


      Thanks.


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    3. #2
      Lazarus's Avatar
      Lazarus is offline Sky User Member
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      Re: Are these speeds correct?

      With a line attenuation of 21db you could reasonably expect to achieve the full 16mb connection.

      Try the first post below to check you connection in the Test socket behind the faceplate of the Master socket. This would help to rule out interference by your house wiring, extensions, etc, that may be causing problems

      http://www.skyuser.co.uk/forum/view-master.html

      You might also like to take a look at this post to try and improve your download speeds.

      Optimising your Broadband Connection

      HTH
      Asus P6T Deluxe - i7 920 @3.6GHz - 750GB Samsung F1 - 6GB OCZ Platinum 1600MHz - XFX GTX260 'Black Edition' - Tagan 1100W PSU - TT 'Big Water' 760i - Antec 1200 - Windows 7 64-bit - Ubuntu 9.04 64-bit

      ADSL Link..............Down .............Up
      Connection Speed..9215 kbps......606 kbps
      Line Attenuation... 20.0 db..........11.9 db
      Noise Margin........ 20.9 db..........22.0db

    4. #3
      squimmy's Avatar
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      Re: Are these speeds correct?

      I don't think I can try the test socket as the master socket is too far away from the router to be connected with a short cable.

      I've ran the tcp optimizer, made very little to no difference here. I'm on vista, would that make a difference.

      I'm gonna post my stats, maybe you can see a problem with it:

      Code:
      /usr/sbin/adslctl: ADSL driver and PHY status
      Status: Showtime  Channel: FAST, Upstream rate = 764 Kbps, Downstream rate = 13187 Kbps
      Link Power State: L0
      Mode:			ADSL2+
      Channel:		Fast
      Trellis:		ON
      Line Status:		No Defect
      Training Status:	Showtime
      		Down		Up
      SNR (dB):	7.1		11.0
      Attn(dB):	21.0		11.9
      Pwr(dBm):	0.0		12.4
      Max(Kbps):	13248		864
      Rate (Kbps):	13187		764
      			G.dmt framing
      K:		241(0)		24
      R:		14		16
      S:		1		8
      D:		64		8
      			ADSL2 framing
      MSGc:		104		68
      B:		240		23
      M:		1		8
      T:		1		1
      R:		14		16
      S:		0.5823		7.7037
      L:		3503		216
      D:		64		8
      			Counters
      SF:		1121605		1121603
      SFErr:		4808		1
      RS:		123376656		9533625
      RSCorr:		382354		23
      RSUnCorr:	182990		0
      
      HEC:		4758		0
      OCD:		18		0
      LCD:		0		0
      Total Cells:	558465605		32377460
      Data Cells:	63611153		2889095
      Drop Cells:	0
      Bit Errors:	0		0
      
      ES:		150		1
      SES:		107		0
      UAS:		14		34
      Total time = 4 hours 59 min 43 sec
      SF  = 1121605
      CRC = 4808
      LOS = 30
      LOF = 0
      ES  = 150
      Latest 1 day time = 4 hours 59 min 43 sec
      SF  = 1121605
      CRC = 4808
      LOS = 30
      LOF = 0
      ES  = 150
      Latest 15 minutes time = 14 min 43 sec
      SF  = 55125
      CRC = 3
      LOS = 1
      LOF = 0
      ES  = 3
      Previous 15 minutes time = 15 min 0 sec
      SF  = 56186
      CRC = 3
      LOS = 2
      LOF = 0
      ES  = 4
      Previous 1 day time = 0 sec
      SF  = 0
      CRC = 0
      LOS = 0
      LOF = 0
      ES  = 0
      15 minutes interval [-30 min to -15 min] time = 15 min 0 sec
      SF  = 56187
      CRC = 10
      LOS = 4
      LOF = 0
      ES  = 4
      15 minutes interval [-45 min to -30 min] time = 15 min 0 sec
      SF  = 56186
      CRC = 2
      LOS = 1
      LOF = 0
      ES  = 2
      15 minutes interval [-60 min to -45 min] time = 15 min 0 sec
      SF  = 56187
      CRC = 0
      LOS = 0
      LOF = 0
      ES  = 0

      Thanks.

    5. #4
      Saturday's Avatar
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      Re: Are these speeds correct?

      Quote Originally Posted by squimmy View Post
      My download speeds are quite shaky, sometimes they dwindle at 2000kbps, yet then they can shoot up to 8000kbps.
      Is that a wired connection or wireless (I'm guessing wireless)?

      Quote Originally Posted by squimmy View Post
      BTW, i'm on the max package.
      Please change your Skyuser profile info.


      PS You have quite a high number of CRC errors but I doubt that's a big problem.

    6. #5
      squimmy's Avatar
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      Re: Are these speeds correct?

      Err...no, it's a wired connection.

      And about the profile..... done.


      So, no reason why I have these strange speeds? My router syncs at about 13000 kbps, so I should definately be able to down at that speed, right?

    7. #6
      Saturday's Avatar
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      Re: Are these speeds correct?

      No, you should be able to achieve a download speed of 85% of the connection speed. The "missing" 15% is transmission overheads.

      If you're not getting that wired then the first thing to check is your TCP/IP settings (TCPOptimizer which you say you've done) and then make sure you are using a decent test server - many are overloaded and give inaccurate results.
      Last edited by Saturday; 29-03-07 at 10:42 PM.

     

     

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