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Aspiring Contributor
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Message 1 of 10

Infinity 2 downstream keeps dropping back to 37Mb overnight

We got Infinity 2 installed last Friday and were quoted 10Mb upstream, 50Mb upstream.  After installation, we got 46.1Mb download and 7.31Mb upload speeds using the standard speedtest, a little lower than the sync rates.  The engineer that installed it for us said those values would be the minimum, and it should improve.  What seems to be happening is overnight, the downstream re-syncs as 37Mb (looking at the Hub5's advanced settings).  This conveniently seems to match infinity 1's limit.

 

Does this sound like my line keeps resetting to inifinity 1?  How do I go about getting the upload improved - I was quoted 10Mb after all.

 

BTW performance test after a box reset (and re-sync at 47.5Mb downstream)

 

Results Image not loaded

 

 



1. Best Effort Test:  -provides background information.

 Download Speed
 46.02 Mbps
  
0 Mbps47.25 Mbps
Max Achievable Speed

 

 Download speedachieved during the test was - 46.02 Mbps
 For your connection, the acceptable range of speedsis 16 Mbps-47.25 Mbps .
 Additional Information:
 IP Profile for your line is - 47.25 Mbps


2. Upstream Test:  -provides background information.

 Upload Speed
 6.63 Mbps
  
0 Mbps20 Mbps
Max Achievable Speed

 

Upload speed achieved during the test was - 6.63Mbps
 Additional Information:
 Upstream Rate IP profile on your line is - 20 Mbps



We were unable to identify any performance problem with your service at this time.
It is possible that any problem you are currently, or had previously experienced may have been caused by traffic congestion on the Internet or by the server you were accessing responding slowly.
If you continue to encounter a problem with a specific server, please contact the administrator of that server in the first instance.

 

BT Home Hub 5 (Type A) | Software version 4.7.5.1.83.8.173.1.4 

 

Thanks for any help,

Chris.

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Distinguished Sage
Distinguished Sage
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Message 2 of 10

Re: Infinity 2 downstream keeps dropping back to 37Mb overnight

The upload IP profile for Infinity 2 is 20Mbps and for Infinity 1 is 10Mbps. This is what is shown regardless of what you will actually get. As you can see you have 20Mbps therefore you are on Infinity 2.

 

Your down load speed is also above that of the software cap of 38Mbphs on Infinity 1 so again this shows you are on Infinity 2.

 

Your speeds will fluctuate for the first few days then settle down. If your estimated speed was 50Mbps and bearing in mind it is only an estimate which means it can be higher or lower, your speed of 47.5Mbps would be within the range as acceptable by BT.

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Distinguished Sage
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Message 3 of 10

Re: Infinity 2 downstream keeps dropping back to 37Mb overnight

No provider guarantees its upload speed it is like download speed an estimate and the services are sold as UP TO services
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Aspiring Contributor
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Message 4 of 10

Re: Infinity 2 downstream keeps dropping back to 37Mb overnight

I'm happy with download, but upload is only 75% of the quoted speed.  They did say on signup if I didn't get those values, I had 3 months in which to report it.

 

I'm less pleased by the fact it seems to reconnect every 6 hours or so, nearly a week after installation.

 

Currently on:

Downstream:48.81 Mbps
Upstream:7.68 Mbps
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Distinguished Expert
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Message 5 of 10

Re: Infinity 2 downstream keeps dropping back to 37Mb overnight


@gingercat wrote:

 What seems to be happening is overnight, the downstream re-syncs as 37Mb (looking at the Hub5's advanced settings).


What is the Noise Margin when this happens?

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Aspiring Contributor
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Message 6 of 10

Re: Infinity 2 downstream keeps dropping back to 37Mb overnight

Current stats are:

5. VDSL uptime:0 days, 00:13:03
6. Data rate:7864 / 49982
7. Maximum data rate:8071 / 50245
8. Noise margin:6.2 / 6.0
9. Line attenuation:0.0 / 23.6
10. Signal attenuation:0.0 / 21.6
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Aspiring Contributor
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Message 7 of 10

Re: Infinity 2 downstream keeps dropping back to 37Mb overnight

There are BT engineers fiddling in the cabinets in the village (infinity has just come here in the past month), I don't know if they would be intentionally (or otherwise) causing the connection to reset.
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Distinguished Expert
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Message 8 of 10

Re: Infinity 2 downstream keeps dropping back to 37Mb overnight

That looks fine but I wonder what the noise margin is when it re-syncs at 37Mb?
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Aspiring Expert
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Message 9 of 10

Re: Infinity 2 downstream keeps dropping back to 37Mb overnight


@john46 wrote:
No provider guarantees its upload speed it is like download speed an estimate and the services are sold as UP TO services

You are correct,but they have a responsibility to ensure you get as close as possible, BUT <------ amazing word(a bit like "upto"), if its advertised as a headline speed and you only get a fraction of that advertised speed, "upto" does not cover it, ask the ASA.


What's slow about FTTC........DLM 😞
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Aspiring Contributor
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Message 10 of 10

Re: Infinity 2 downstream keeps dropping back to 37Mb overnight

Suspiciously, the first sign of a reconnect is accompanied by the following log entries e.g.:

05:29:02, 13 Dec.(68682.910000) CWMP: session completed successfully
05:29:01, 13 Dec.(68682.670000) CWMP: HTTP authentication success from https://pbthdm.bt.mo
05:28:56, 13 Dec.(68677.670000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
05:28:56, 13 Dec.(68677.660000) CWMP: Session start now. Event code(s): '4 VALUE CHANGE'
05:28:52, 13 Dec.(68673.400000) WAN operating mode is VDSL
05:28:52, 13 Dec.(68673.400000) Last WAN operating mode was VDSL
05:28:51, 13 Dec.(68672.390000) PPP IPCP Receive Configuration ACK
05:28:51, 13 Dec.(68672.370000) PPP IPCP Send Configuration Request
05:28:51, 13 Dec.(68672.370000) PPP IPCP Receive Configuration NAK
05:28:51, 13 Dec.(68672.350000) PPP IPCP Send Configuration ACK
05:28:51, 13 Dec.(68672.350000) PPP IPCP Receive Configuration Request
05:28:51, 13 Dec.(68672.350000) PPP IPCP Send Configuration Request
05:28:51, 13 Dec.(68672.350000) CHAP authentication successful
05:28:51, 13 Dec.(68672.280000) CHAP Receive Challenge
05:28:51, 13 Dec.(68672.280000) Starting CHAP authentication with peer
05:28:51, 13 Dec.(68672.280000) PPP LCP Receive Configuration ACK
05:28:51, 13 Dec.(68672.260000) PPP LCP Send Configuration Request
05:28:51, 13 Dec.(68672.260000) PPP LCP Receive Configuration Reject
05:28:51, 13 Dec.(68672.260000) PPP LCP Send Configuration ACK
05:28:51, 13 Dec.(68672.260000) PPP LCP Receive Configuration Request
05:28:51, 13 Dec.(68672.250000) PPP LCP Send Configuration Request
05:27:56, 13 Dec.(68616.950000) CWMP: session closed due to error: Could not resolve host
05:27:56, 13 Dec.(68616.930000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
05:27:56, 13 Dec.(68616.920000) CWMP: Session start now. Event code(s): '4 VALUE CHANGE'
05:27:25, 13 Dec.(68586.730000) CWMP: session closed due to error: Could not resolve host
05:27:25, 13 Dec.(68586.710000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
05:27:25, 13 Dec.(68586.700000) CWMP: Session start now. Event code(s): '4 VALUE CHANGE'
05:27:25, 13 Dec.(68586.510000) CWMP: Initializing transaction for event code 4 VALUE CHANGE
05:27:20, 13 Dec.(68581.170000) PPP LCP Send Termination Request [User request]
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