ADSL Speed limited to 150 kbps
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- Re: ADSL Speed limited to 150 kbps
ADSL Speed limited to 150 kbps
08-01-2017 6:31 PM
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Hi,
Please help, I am rapidly running out of ideas. My broadband download speed used to max out at around 300-350 kB/s only 3 weeks ago. Just before Christmas we experienced a few connection issues, the DSL was synced on the router but the internet speed was very slow. The speed improved after that day but has not ever recovered to it's normal speed. Instead, no matter how I test, the speed is limited to half what it used to be - 150 kB/s. It's like something is artificially limiting my bandwidth. The connection rate of my router is the same as it was before I experienced this issue (around 4500 kbps) . I have checked all my drivers and connection settings, but nothing seems to be amiss. I anticipated a stuck profile but the BT profile for the line is 3.5 Mbps - the same as it was before the issue. Is it possible that the profile is stuck and being misreported?
BTW Speed Test
Download speed achieved was: 1.25 Mbps
DSL Connection rate is: 4.42 Mbps (DOWN), 0.45 Mbps (UP)
IP Profile for line is: 3.5 Mbps
Router settings:
TCM(Trellis Coded Modulation) |
1
|
1
|
---|---|---|
SNR Margin |
4.0 dB
|
20.0 dB
|
Line Attenuation |
59.0 dB
|
31.5 dB
|
Path Mode |
Interleaved
|
Interleaved
|
Interleave Depth |
32
|
4
|
Data Rate |
4416 kbps
|
448 kbps
|
MAX Rate |
4672 kbps
|
1068 kbps
|
POWER |
19.5 dbm
|
12.0 dbm
|
INP |
0.0 symbols
|
0.0 symbols
|
CRC |
56
|
0
|
Any help appreciated!!
Re: ADSL Speed limited to 150 kbps
08-01-2017 6:38 PM
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This possibly isn't relevant as you may be on the new network but what is the Current Line Speed given here https://portal.plus.net/my.html?action=data_transfer_speed
Re: ADSL Speed limited to 150 kbps
08-01-2017 6:44 PM
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Hi oldjim,
The Current line speed:7.15 Mb according to that link, so I am guessing that the profile at Plusnet's end isn't stuck either.........
Re: ADSL Speed limited to 150 kbps
08-01-2017 6:54 PM
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Have you tried re-connecting the PPP? Or even rebooting the router?
Re: ADSL Speed limited to 150 kbps
08-01-2017 7:02 PM
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Not too sure what's meant by 'new network' but it does look like you may be in what's called a banded profile.
"no matter how I test" - does this include constantly rebooting the router? If so this wouldn't help and only increases the time it takes for the dlm to recover. If you have been switching it on and off, you'd be better off leaving the router on and left alone.
Should you be connecting over wifi, try ethernet and see if the results of speed tests increase to where you've seen them before.
PN should be able to give it a nudge in the right direction if it doesn't correct itself
Re: ADSL Speed limited to 150 kbps
08-01-2017 7:04 PM
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The data transfer rate of 150kB/s seems to be correct for the downstream throughput shown in your BTW speed test.
That's not to say it's a good speed though, as your router is indicating a sync rate of 4.4 Mbps.
Probably would try a reboot of the router if you haven't already.
Are you also connecting wired or wireless?
If this post resolved your issue, please click the 'This fixed my problem' button
Re: ADSL Speed limited to 150 kbps
08-01-2017 7:05 PM
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There is nothing to suggest this is a banded profile.
It's ADSL1 where banding as such does not exist, the clue is in the rounded 3.5 IP Profile.
Re: ADSL Speed limited to 150 kbps
08-01-2017 7:07 PM
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Hi ejs,
Yep, tried rebooting and also changing the PPP settings but still the same download speed...
Re: ADSL Speed limited to 150 kbps
08-01-2017 7:08 PM
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Thanks for that ejs. I've been 'away' from this sort of stuff for a while and had it in my head that 3.5 was one of the profiles... my bad.
Re: ADSL Speed limited to 150 kbps
08-01-2017 7:09 PM - edited 08-01-2017 7:10 PM
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I would accept my download speed is 150 kbps IF I hadn't had a download speed of 300-350 kbps for the last two years!!
Edit: it's a wired connection by the way
Re: ADSL Speed limited to 150 kbps
08-01-2017 7:15 PM
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If this post resolved your issue, please click the 'This fixed my problem' button
Re: ADSL Speed limited to 150 kbps
08-01-2017 8:46 PM
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How are you testing, wired or WiFi, and with what?
Re: ADSL Speed limited to 150 kbps
08-01-2017 8:51 PM
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Hi Mustrum,
Testing via a wired connection, using BTW Performance Test.
I think I will raise this as a fault, as Anoush suggests. Thanks for your help all
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