Your forum username:
Do you already have an account?
Forgot your password?
  • Log in or Sign up


    Welcome to Sky User - The Unofficial Support Forum for everything Sky! - Proudly helping over 63k members.


    Advertisement

    Results 1 to 4 of 4

    Finding pages loading slowly? Try this MTU tweak

    This is a discussion on Finding pages loading slowly? Try this MTU tweak within the Sky Broadband help forums, part of the Sky Broadband help and support category; It's from the mouths of Tier3 support (yes - they exist and are brilliant) and it solved my page loading ...

    1. #1
      fredwestie's Avatar
      fredwestie is offline DLM Admin
      Exchange: Shepherds Bush
      Broadband ISP: Base
      Router: Netgear V1 DG834GT
      Sky TV:
      Join Date
      Sep 2006
      Posts
      65
      Thanks
      0
      Thanked 0 Times in 0 Posts

      Finding pages loading slowly? Try this MTU tweak

      It's from the mouths of Tier3 support (yes - they exist and are brilliant) and it solved my page loading issues in a stroke.

      1. Login to router status page.
      2. Click on wan setup (this is on the left hand side of the page).
      3. Change MTU size from 1500 to 1458, once you change the size click on apply.
      4. Open a second internet explorer session and go www.bbc.co.uk and click on different news stories, check to see if the speed of the stories has speeded up.
      5. If 1458 has not worked that well, try 1440. You may have to try as far down as 1410 in the MTU size to get the best setting. Each time you change the MTU check the speed that the pages open up at.
      6. You may initially need to restart your PC and switch the sky broadband box off. If you reset the router you will change the MTU size so I'd advise you just to switch the power off on the box.

      For the record Tier3 have also taken my downstream speed down to 12mb or so and tweaked my SNR. This has given me a totally stable line that is still giving me the 10mbps but without ANY dropouts. It's now a fab service and lightning fast. I've also taken off UPnP (or whatever it is) and connect at Auto 108. I'm using channel 6 wireless (because it's away from my neighbours services - I checked with MacStumbler). Best of luck to everyone else who is having problems and do persevere with tier3 support, it's well worth it.
      Last edited by fredwestie; 25-10-06 at 04:13 PM.


    2. Advertisement
    3. #2
      Saturday's Avatar
      Saturday is offline Sky User Super Mod
      Exchange:
      Broadband ISP: Sky Broadband Unlimited Pro
      Router: Sky Hub SR102
      Sky TV: Sky+HD box
      Join Date
      Sep 2006
      Posts
      6,036
      Thanks
      20
      Thanked 51 Times in 47 Posts
      Trying to judge changes to MTU by eye sounds a little hit and miss!

      MTU (maximum transmission unit) tells you the largest packet size that can be sent without fragmentation. Too big an MTU and packets have to be fragmented (bad), too small and you're not optimising your connection as you're having to send more packets (bad).

      If you ping -f -l a site you'll come up with 1472 if you're on a SkyBB LLU product - or at least, that's what I get. Add 28 bytes for the IP/ICMP header and you get 1500 as the correct MTU figure to set.

      So 1458 doesn't make sense. Now Connect is a different matter as 1458 is the recommended figure for the BT network.
      Last edited by Saturday; 25-10-06 at 07:55 PM.

    4. #3
      fredwestie's Avatar
      fredwestie is offline DLM Admin
      Exchange: Shepherds Bush
      Broadband ISP: Base
      Router: Netgear V1 DG834GT
      Sky TV:
      Join Date
      Sep 2006
      Posts
      65
      Thanks
      0
      Thanked 0 Times in 0 Posts

      maybe then

      its just the reduction on downstream speed to 12998 that's done it.
      Either way, it's working like a dream so I'm loathe to fiddle while it's so good. I'll wait until it screws the pooch before tweaking any more.

    5. #4
      RichP's Avatar
      RichP is offline Sky User Member
      Exchange: Higher Bolton (LCHIG)
      Broadband ISP: Not on Sky
      Router:
      Sky TV:
      Join Date
      Oct 2006
      Posts
      9
      Thanks
      0
      Thanked 0 Times in 0 Posts
      Quote Originally Posted by Saturday View Post
      If you ping -f -l a site you'll come up with 1472 if you're on a SkyBB LLU product - or at least, that's what I get. Add 28 bytes for the IP/ICMP header and you get 1500 as the correct MTU figure to set.
      One word of caution - the ping command on linux, MacOS and I assume other UNIX-like systems works differently to the Windows one. The -f option doesn't mean "don't fragment", it means "flood" - send pings as fast as possible. The recipient site may not approve of this!

     

     

    Tags for this Thread

    Posting Permissions

    • You may not post new threads
    • You may not post replies
    • You may not post attachments
    • You may not edit your posts
    •  
    SkyUser - Copyright © 2006-2014. SatDish and NewsreadeR | SkyUser is in no way affiliated with Sky Broadband / BSkyB
    RIPA NOTICE: NO CONSENT IS GIVEN FOR INTERCEPTION OF PAGE TRANSMISSION | SEO by vBSEO