Infinity Speed Drop

[mike63uk]

I have had Infinity for 2 years 9 months and all has been fine until 08:07 on the 26th November.

Up until then I was syncing at 77 and getting an IP profile of 73, now the sync speed has dropped to 64.59 with an IP Profile of 64.97 for no apparant reason.

I am on the BT homehub 5 and its connected directly to the master socket.

I live aprox 200 meters from the street cabinet.

I have a SamKnows white box which backs up the speed I have been receiving.

Regards

Michael Gibson

Connection Information

Line state:	Connected
Connection time:	0 days, 00:04:55
Downstream:	64.59 Mbps
Upstream:	19.53 Mbps

1. Product name:	BT Home Hub
2. Serial number:	+068343+NQ34418865
3. Firmware version:	Software version 4.7.5.1.83.8.173.1.6 (Type A) Last updated 24/04/14
4. Board version:	BT Hub 5A
5. VDSL uptime:	0 days, 00:05:19
6. Data rate:	20000 / 66140
7. Maximum data rate:	26980 / 76385
8. Noise margin:	9.5 / 6.6
9. Line attenuation:	0.0 / 14.4
10. Signal attenuation:	0.0 / 14.4
11. Data sent/received:	0.2 MB / 1.2 MB
12. Broadband username:	bthomehub@btbroadband.com

[imjolly]

connection time is only 5min is that due to manual reset or router dropping connection?

[mike63uk]

I rebooted the router to see if the speed would increase.

[nomad2k3]

Done the same with me, gone from 76mb to 69mb and 20mb to 19mb up.

BT up to their old tricks as usual, slowing down connections.

.

[imjolly]

BT Retaill do not control the network Anymore than SKY or TT however the more customers on your cabinet the more likely your speed is likely to reduce and especially noticeable if you were in first batch to get fibre

[ray_dorset]

BT Retail control the modem remotely. What do these lines mean?

12:02:29, 10 Dec. (432648.830000) CWMP: session completed successfully
12:02:29, 10 Dec. (432648.540000) CWMP: HTTP authentication success from https://pbthdm.bt.mo
12:02:26, 10 Dec. (432645.360000) CWMP: Server URL: https://pbthdm.bt.mo; Connecting as user: ACS username
12:02:26, 10 Dec. (432645.350000) CWMP: Session start now. Event code(s): '4 VALUE CHANGE'
12:02:25, 10 Dec. (432645.040000) CWMP: Initializing transaction for event code 4 VALUE CHANGE


What value has been changed, and why?

[mike63uk]

BT Retaill do not control the network Anymore than SKY or TT however the more customers on your cabinet the more likely your speed is likely to reduce and especially noticeable if you were in first batch to get fibre

This should not affect the sync speed or IP Profile to the cabinet as this should depend upon the quality and length of the copper pair and not the number of connections in the cabinet.  Anyway this would not explain a sudden drop of 9Mbps at 08:07 in the morning.

[dfenceman]

---

@mike63uk wrote:

BT Retaill do not control the network Anymore than SKY or TT however the more customers on your cabinet the more likely your speed is likely to reduce and especially noticeable if you were in first batch to get fibre

This should not affect the sync speed or IP Profile to the cabinet as this should depend upon the quality and length of the copper pair and not the number of connections in the cabinet.  Anyway this would not explain a sudden drop of 9Mbps at 08:07 in the morning.

---

You may find this of interest :- http://www.increasebroadbandspeed.co.uk/2014/vectoring-crosstalk-crisis

As it explains the number, and more importantly the proximity of other pairs, will affect speeds regardless of line quality.

I agreee that it is unlikely to be the cause of a speed drop at such a precise time, unless of course and engineer connected some new lines at that time.  So there could well be other issues. 

Please enter your telephone number into http://www.dslchecker.bt.com/adsl/adslchecker.welc​ome  and post the results, after first removing your telephone number.

[mike63uk]

Featured ProductsDownstream Line Rate(Mbps)Upstream Line Rate(Mbps)Downstream Range(Mbps)Availability Date  High Low High Low    

FTTC Range A (Clean)	80	66.6	20	20	--	Available
FTTC Range B (Impacted)	80	54.3	20	17.7	--	Available
WBC ADSL 2+	Up to 25	--	22 to 28.5	Available
WBC ADSL 2+ Annex M	Up to 25	Up to 1	22 to 28.5	Available
ADSL Max	Up to 8	--	7 to 8	Available
WBC Fixed Rate	2	--	--	Available
Fixed Rate	2	--	--	Available
Other Offerings
Fibre Multicast	--	--	--	Available
Copper Multicast	--	--	--	Available