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crd1904
Contributor
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Message 1 of 54

Sudden drop in BB speed

Have recently joined BT Broadband. The speed seemed to settle between 3 and 4 but has now suddenly dropped to less than 1. Could this have been caused by restarting the router a few times over the last few days due to problems with wifi and airprinting? How can I get BT to reset the download speed?

 

Thanks

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Distinguished Sage
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Message 2 of 54

Re: Sudden drop in BB speed

welcome to the BT community forum where customers help customers and only BT employees are the forum mods

 

to many resets will increase your noise margin and drop your conenction speed but need to post stats

in order for the forum members to help please can you post the adsl stats from your router may need to 'show detail' to get all stats (if hub enter 192.168.1.254 in your browser and navigate to adsl or use a-z, if netgear enter 192.168.0.1) and run  btspeedtester  (MAC users may have problems). when first test completes then run diagnostic test and post the results .


are you connected directly via a filter to the NTE5 master or test socket or to somewhere else? Is the master the only phone socket in your home?

Have you tried the quiet line test? - dial 17070 option 2 - should hear nothing - best done with a corded phone. if cordless phone you may hear a 'dull hum' which is normal

Someone may then be able to offer help/assistance/suggestions to your problem

 

 

 

test socket.jpg



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crd1904
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Message 3 of 54

IP Profile

Yesterday IP profile was 4. Everything was working fine. Today it's down to 2. Very slow connection again. Why does BT alter it all the time when it's working fine. Was changing to BT Internet a big mistake?

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Distinguished Sage
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Message 4 of 54

Re: IP Profile

same as your last post you need to post the adsl stats from your router.  the chnage in your profile is caused by a drop in connection and a reconenct at a lower speed - it is automatic



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Message 5 of 54

Re: IP Profile

Hi crd1904,

 

1) please post adsl line statistics. There is some help on how to find this below.


2) Can you please run a BT speed test (including IP Profile) http://speedtest.btwholesale.com (not beta version)[Best done with a wired, Ethernet, connection] After Quick Test is done you need to click "Further Diagnostics" to get IP Profile.

3) is there any noise on your line. dial 17070 option2 ,called quite line test, from landline phone. should be silent but slight hum normal on cordless phone.

ADSL Line Statistic Help:

 If you have a BT Home Hub like the one below...

Then:

 1) Go to http://192.168.1.254 or http://bthomehub.home

 2) click Settings

 3) Click Advanced Settings

 4) Click Broadband

 5) Click Connection or sometimes called ADSL (see picture Below)

adslconnection.png

The direct Address is http://bthomehub.home/index.cgi?active_page=9116 (for bthomehub3.A firmware ending in 1.3)

or http://bthomehub.home/index.cgi?active_page=9118 (for bthomehub3.A firmware ending in 94.1.11)

 

You will need to copy and past all the adsl line statistics ( Including HEC, CRC and FEC errors). You may need to click " More Details"

 

There are more useful links on Keith's website here: If you have an ADSL connection, please select this link

 

Don't have a BT Homehub/Voyager?

 http://192.168.0.1 for a netgear router and look for ADSL adsl statistics with information like noise margin and line attenuation, connection speed

• http://192.168.2.1 for a belkin router and look for ADSL adsl statistics with information like noise margin and line attenuation, Data Rate

 

 

 cheers


jac_95 | BT.com Help Site | BT Service Status
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crd1904
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Message 6 of 54

Re: IP Profile

ADSL Line Status
Connection Information
Line state:Connected
Connection time:0 days, 00:32:17
Downstream:4.063 Mbps
Upstream:448 Kbps
 
ADSL Settings
VPI/VCI:0/38
Type:PPPoA
Modulation:G.992.1 Annex A
Latency type:Interleaved
Noise margin (Down/Up):9.2 dB / 25.0 dB
Line attenuation (Down/Up):48.1 dB / 31.5 dB
Output power (Down/Up):19.4 dBm / 12.4 dBm
FEC Events (Down/Up):1752 / 0
CRC Events (Down/Up):1 / 0
Loss of Framing (Local/Remote):0 / 0
Loss of Signal (Local/Remote):0 / 0
Loss of Power (Local/Remote):0 / 0
HEC Events (Down/Up):0 / 0
Error Seconds (Local/Remote):1 / 0
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Message 7 of 54

Re: IP Profile

now need to run btspeedtester and when first test completes then run diagnostic test and post reults  this will show your profile



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crd1904
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Message 8 of 54

Re: IP Profile

 Download speedachieved during the test was - 1.96 Mbps
 For your connection, the acceptable range of speeds is 0.4 Mbps-2 Mbps.
 Additional Information:
 Your DSL Connection Rate :4.16 Mbps(DOWN-STREAM), 0.45 Mbps(UP-STREAM)
 IP Profile for your line is - 2 Mbps

 

 

Yesterday IP profile was 4 Mbps with acceptabe range of up to 7 Mbps. 

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Guru
Guru
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Message 9 of 54

Re: IP Profile

Thanks crd1904,

 

Your sync rate (the connection speed between your router and the exchange) is at 4mbps which is just slightly lower than the  4mbps to 5.1mbps I would have estimated for your 48dB line (approx 3.5Km long). However your noise margin is slightly higher than the usual 6dB target which means that there is room for improvment.

 

However your IP Profile is at 2mb. The IP Profile should automatically increase with a 3 to 5 day stable connection, with no manual hub restarts/resets. 

 

If your restart/turnoff the router/homehub then the 3 to 5 day counter will start all over again.

 

I noticed that you have a 32min DSL uptime and that you have said that you reset the router/homehub now and again. Is there any reason for this and this will reduce your broadband speed.

 

Also it is advised to keep the homehub/router switched on constantly and connected 24/7, as any restarts/disconnections or turning off of the router/homehub will make the dlm think there is a problem with your line and will either increase your noise margin, decrease your IP Profile, decrease your sync rate. This is done automatically to stabilise the line.

 

If however the IP profile does not increase by 3+ days then come back here and we can look into the issue further. If needed you can get your IP Profile manually reset by the BT Care Team, but you will need to have a 3+day stable connection first.

 

Cheers


jac_95 | BT.com Help Site | BT Service Status
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crd1904
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Message 10 of 54

Re: IP Profile

Thanks for prompt reply. I'll leave the hub connected for three days and hopefully this will sort it then. If not I'll come back here. Thanks for help.

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