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Download speed below minimum guaranteed speed

AMC1973
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Registered: ‎08-04-2021

Download speed below minimum guaranteed speed

Hi Anyone,
 
Hopefully a kind member of staff will pick this up?
 
When I first switched from ADSL to FTTC, I was unaware that I had interference from dodgy internal extension wiring, affecting the 10 day/two week training period, as a consequence my downstream went from 24 to 17mbps. However, after performing a successful quiet line test, and relocating my filter and router from master to test socket, my upstream immediately jumped from 3 to 7mpbs, and the following couple of weeks saw my downstream increase slowly up to a max of 31mbps. My IP profile upload has always shown a max of 10mbps, my IP profile download has always been just shy of my downstream (which I believe to be normal). When I carry out speed tests on BT Wholesale, wifi or cabled, my upload is always around 6.5/7mbps, my download is always about 95% of the IP profile max - it's more or less the same across all devices. So while my upload is within my estimates, my download has failed to ever reach my guaranteed minimum speed.
Would someone be helpful enough to check my line, and make sure my profile is set correctly?
 
Thanks very much
12 REPLIES 12
jab1
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Registered: ‎24-02-2012

Re: Download speed below minimum guaranteed speed

@AMC1973 Nowhere have you indicated  what your guaranteed minimum download is, and your download is correct when compared with the profile quoted on that test report - you have to allow for overheads.

John
AMC1973
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Registered: ‎08-04-2021

Re: Download speed below minimum guaranteed speed

Sorry John, losing the plot at the moment.

 

  • Product: Unlimited Fibre
  • Estimated Download Range: 31 - 40Mbps
  • Estimated Upload Range: 6 - 9Mbps
  • Minimum Guaranteed Speed: 30.9Mbps
  • Current Line Speed (Download): 27.6Mbps

 

jab1
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Re: Download speed below minimum guaranteed speed

OK - you obviously are suffering somewhere, but I don't know why or where at the moment. Is it possible to post the details of the Help Desk tab on you router, but ensure you remove/obscure any personal information. This may help a little more, but please note I am not an FTTC expert, and there are only limited ways to influence the system, even at ISP level.

John
AMC1973
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Re: Download speed below minimum guaranteed speed

1. Product name: Plusnet Hub
2. Serial number:  
3. Firmware version: Software version 4.7.5.1.83.8.263 Last updated Unknown
4. Board version: Plusnet Hub One
5. DSL uptime: 9 days, 12:37:37
6. Data rate: 7231 / 28678
7. Maximum data rate: 7231 / 40314
8. Noise margin: 6.0 / 10.6
9. Line attenuation: 31.3 / 22.3
10. Signal attenuation: 30.4 / 20.8
11. Data sent/received: 3.3 GB / 64.2 GB
12. Broadband username:  
13. 2.4 GHz Wireless network/SSID: PLUSNET-95WT
14. 2.4 GHz Wireless connections: Enabled (802.11 b/g/n (up to 144 Mb/s))
15. 2.4 GHz Wireless security: WPA2
16. 2.4 GHz Wireless channel: Automatic (Smart Wireless)
17. 5 GHz Wireless network/SSID: PLUSNET-95WT
18. 5 GHz Wireless connections: Enabled (802.11 a/n/ac (up to 1300 Mb/s))
19. 5 GHz Wireless security: WPA2
20. 5 GHz Wireless channel: Automatic (Smart Wireless)
21. Firewall: Default
22. MAC Address:  
23. Modulation: G.993.2 Annex B
24. Software variant: AA
25. Boot loader: 1.0.0
jab1
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Re: Download speed below minimum guaranteed speed

The only thing that stand out to me there is your D/S SNR figure - unless FTTC operates differently to ADSL, that suggests DLM has upped it to correct some line fault - my 'target' margin (on ADSL) is 6dB, but varies from 13 to 16 - I live with it as it doesn't bother me, but it does mean I lose 1/1.5MB on my top speed.

John
dvorak
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Re: Download speed below minimum guaranteed speed

My FTTC has a target of 6, so that is high.
Could be banded?
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jab1
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Re: Download speed below minimum guaranteed speed

My thoughts too, @dvorak - but can PN resolve these issues on FTTC as easily as they can on ADSL?

John
dvorak
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Re: Download speed below minimum guaranteed speed

If the underlying issue is removed they can ask for a reset now, I believe
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AMC1973
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Re: Download speed below minimum guaranteed speed

Interesting you mention "banded" there; I've been wondering about that. I believe that's quite common with unstable lines - which I definitely had for the first couple of months.

AMC1973
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Re: Download speed below minimum guaranteed speed

Thanks to you both for your thoughts, it's much appreciated. 

jab1
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Re: Download speed below minimum guaranteed speed

I would try contacting Plusnet on Monday and ask them to run a KBD check, which will confirm or disprove banding, and also possibly give them an idea of what needs to be done next.

John
AMC1973
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Re: Download speed below minimum guaranteed speed

Will do, John. Many thanks for your help and advice.