Low Speedtest Results
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Low Speedtest Results
11-08-2008 10:27 AM
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Any suggestions as to the problem. Note that the IP Rate until about 2 days ago was 2000kbps
Edit - this is a PlusNet problem. I just changed to the RIN connection and speeds are now 2900kbps
Is this a function of now being on BBYW2 or is there a problem with the network
Re: Low Speedtest Results
12-08-2008 9:16 AM
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I would really like a rep to have a look at it.
Re: Low Speedtest Results
12-08-2008 9:27 AM
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I can't see anything that's obviously causing your problem - your line is profiled at 3000Kbps at both our end and BTs.
I'd appreciate it if you could try tweaking your MTU and rWin settings for a 3000Kbps connection and then try running a BT Speedtest after rebooting your computer and router.
Re: Low Speedtest Results
12-08-2008 10:06 AM
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Now on BBYW2 there is a significant difference on BT speedtest, PlusNet speedtest and http file download from the Kaspersky software download.
I can't fiddle with Rwin in Vista and MTU isn't a good idea either unlike XP
Re: Low Speedtest Results
12-08-2008 10:21 AM
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The only thing I can suggest is that the jump from 2000 to 3000 didn't happen until I disconnected and reconnected to the PlusNet servers - anyway it seems to be fixed

Re: Low Speedtest Results
12-08-2008 4:11 PM
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Perhaps the same is true when it goes down but in that case the BTw RAS applies the rate limit so the effect wouldn't be noticeable.
Re: Low Speedtest Results
12-08-2008 6:17 PM
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Re: Low Speedtest Results
12-08-2008 6:53 PM
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If it's markedly higher, tweak your MTU and RWIN.
B.
Re: Low Speedtest Results
12-08-2008 7:37 PM
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But - before it crashed it confirmed that Plusnet's value of 7000Kbps is correct.
Since I am using Linux, it will choose optimal values for RWIN/MTU
Investigation shows that MTU is 1500 (which is the same as my router)
/proc/sys/net/core/rmem_default = 122880
/proc/sys/net/core/wmem_max = 16777216
My send window values are the same as the receive window sizes.
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