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				Broadband Download Speed Problems!
				Posted: Tue May 11, 2010 8:56 am
				by DJ Tucker
				Hi everyone, i have a problem with my download speed as no matter where i test the download and upload speed on speedtest.net i gewt the same download speed which is stuck at 2.42mbps and i know i have 16mbps download speed as i was getting that until yesterday.
Here are some tests i did on speedtest.net and as you can see my download speed is the same no matter what the location is!
 
 

 
			
					
				Re: Broadband Download Speed Problems!
				Posted: Tue May 11, 2010 9:12 am
				by DMB2000uk
				Ring up your ISP, might be a problem at their end they are aware of, or could just be a simple fix while you're on the phone.
Dan
			 
			
					
				Re: Broadband Download Speed Problems!
				Posted: Tue May 11, 2010 9:18 am
				by Apoptosis
				does your ISP slow down your connection if you download too much in a certain period of time?  I've seen stuff like that on some ISP's as a penalty so you you don't hog all the bandwidth.
Since it was fine yesterday and you were checking it, I am guessing you were doing some downloading.
			 
			
					
				Re: Broadband Download Speed Problems!
				Posted: Tue May 11, 2010 10:17 am
				by kenc51
				Delete your temp files and test again first.
Is it just DSL over a phone line with BT?
Can you login to your modem and post the DSL stats from your line?
Synched rate
attenuation (lower dB is better)
SNR levels (higher dB is better)
CRC errors (There will proly be some, not necessaraly a prob)
Have you tested it with a single pc connect via cable to the modem, with all other devices/pc's disconnected?
Also, try download something like a Linux ISO file from a local free FTP server and see what speed it levels off at.
Speed test sites can be very busy or having problems.
			 
			
					
				Re: Broadband Download Speed Problems!
				Posted: Tue May 11, 2010 10:36 am
				by DJ Tucker
				i have rang them up and they report no problems and that my connection is fine but i can only download at 295kbps when i was downloading at 1.5mbps and they say there isn't a problem! anyway they restarted my network for me and still the same problems persists!
ADSL line status 
Connection Information 
Line state Connected 
Connection time 0 days, 01:53:51 
Downstream 15,004 Kbps 
Upstream 1,131 Kbps 
 
  
ADSL Settings 
VPI/VCI 0/38 
Type PPPoA 
Modulation G.992.5 Annex A 
Latency type Interleaved 
Noise margin (Down/Up) 6.0 dB / 6.0 dB 
Line attenuation (Down/Up) 35.2 dB / 16.0 dB 
Output power (Down/Up) 22.4 dBm / 1.7 dBm
			 
			
					
				Re: Broadband Download Speed Problems!
				Posted: Tue May 11, 2010 10:59 am
				by kenc51
				Noise margin (SNR) of 6dB is right at the limits of DSL, it really should be above ~8dB
it sounds to me like your connection is dropping, but so quick it looks like slow speeds or else you have a lot of packet loss
try "mrtg ping probe" (google it) and ping a bunch of servers, your dns, legitreviews, bbc.co.uk etc and see if it shows any packet loss or high latency on your isp's network
			 
			
					
				Re: Broadband Download Speed Problems!
				Posted: Tue May 11, 2010 2:55 pm
				by DJ Tucker
				it seems to be back up and running at 14mbps download and 1mbps upload now 

 so at least bt seemed to have fixed a non existant problem haha!
Edit: my SNR is at 5.4db/6.0db
 
			
					
				Re: Broadband Download Speed Problems!
				Posted: Tue May 11, 2010 3:49 pm
				by kenc51
				Glad to hear you got your speeds again, but a SNR that low is very bad. It can cause intermittent drops of sync and tons of errors on the channel(s)
suppose if its stable for you, then there's no problem but I watch out for it. Having filters on all phone sockets, even if not in use and having the modem on the first socket that comes in to the house will help.
You could also give BT faults a call and ask for a line test. They will ask you to hangup and call you back after ~2mins and then let you know if you have a fault (low resistance, short etc.) or not.
If a fault comes back, they will send out a line tech. They may not have tested the line when you called support as they are proly more concerned about the ip network and than the copper one.
			 
			
					
				Re: Broadband Download Speed Problems!
				Posted: Thu May 13, 2010 9:12 am
				by DJ Tucker
				will do just that mate thanks!
			 
			
					
				Re: Broadband Download Speed Problems!
				Posted: Fri May 14, 2010 5:33 am
				by kenc51
				DJ Tucker wrote:will do just that mate thanks!
No problem at all.