First post here, am after some advice, guidance and hopefully some info to help me tackle an issue with BT Broadband. When I speak to BT shortly I want to guarantee that I am providing them with enough information to get a satisfactory resolution. After reading through multiple forums a full-on approach seems necessary.
The basic details.
1. BT BB option 2.
2. Best sync speed (Downstream) 1834k (Monitored over 9 months, didnít know about IP Profile or BRAS till about a month ago)
3. Best recorded speedtester.bt.com overall result over 9 months was 1456 kbps
Present results (I know the profile is low part of the issue I think and will come to that later)
Test1 comprises of Best Effort Test: -provides background information.
0 Kbps 500 Kbps
Max Achievable Speed
Download speed achieved during the test was - 446 Kbps
For your connection, the acceptable range of speeds is 50-500 Kbps.
Your DSL Connection Rate :1792 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 500 Kbps
Iíll keep it short but will give some background. Over the last 9 months. The BT Broadband Option 2 has been slow, intermittently slow speeds and just generally poorer than expected.
My expectations for this connection are for a connection of around 2 mb. (Give or take the variations due to Attn and SNR, length i am form the exchange etc) Think broadband has people only a couple of streets away with connections of around 6mb
Iíve had 1 visit form a BT engineer following a 2 week period of sub 500k speeds. Unfortunately I donít know what my IP Profile was set to at that time as I have been on a learning experience trying to get to the bottom of it and didnít know to look for that previously. The sync speed was about 1700 kbps then though.
He replaced the main faceplate on the master socket with an openreach one (has the inline filtering as far as I know). He had the line re-profiled and all was well for another couple of months.
My present stats are (Via the test socket)
ADSL Link Downstream Upstream
Connection Speed 1792 kbps 448 kbps
Line Attenuation 63.0 dB 31.5 dB
Noise Margin 12.5 dB 17.0 dB
I noticed that it was slowing again about 3 weeks ago and since then I have tried to be methodical in my troubleshooting. (Knowing it can take 5 days for the IP Profile to stabilise) I have done the following in this order:
1. Reset the BT HH (Itís a HH1)
2. Removed additional peripherals form the extension lines (Skybox and extensions)
3. Swapped Microfilters on extension socket where router was seated
4. Changed routers to a DGN2000
5. Move it to the Test socket in the master socket. New Microfilter (Up for 48 hours, will leave it up to hopefully improve the IP Profile, so probably still reprofiling that atm.)
They are all new D-Link Microfilters. These were changed at the last call out 2 months ago.
So after lots of reading in the last week on Kitz, SamKnows, digitalspy and the Openworld forums. I have drawn these conclusions on my present connection stats.
My Line Attn is high. According to samknows, I am 1.69km from the exchange (as the crow flies).
With a line attenuation of 63.0 db that would have a cable length of 4.6km this seems crazy to me, is it possible that my cable length could be so long? (I understand some give and take but that is nearly there and back again and then there again)
My SNRM seems low, should be at least 6 dB? Am I correct and have I worked that out correctly?
Iíve been running RouterStats Ėlite for 2 days and have had a couple of drops, though the router has a 48 hour uptime after its most recent move (i.e. no physical connection drop according to the router). My Speed has been 1792kbps (Via the test socked) Noise 12.8 dB constantly for both without the 2 drops. Which seem instantaneous.
So in conclusion can anyone point out where to start with BT? Are my expectations reasonable? Theory seems to suggest I could get up to 4mb. Dependant on copper quality etc.
Thanks in advance and I hope that thatís not too much info. All suggestions welcome.