I WAS very happy
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- I WAS very happy
I WAS very happy
29-05-2010 7:04 PM
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I joined Plusnet from Tiscali/TT towards the end of February. The switchover went very well and the speeds were at least as good as I could have expected.
Then, after about a month, the download speeds started to become a little less reliable but still acceptable and an improvement on the 8 to 900 kbps I had been getting from T/TT.
During April things went a little bit haywire and in the last week or so the download speeds have been little more than the up speeds.
These are the data I have from the BT speedtester:
Date 28/2 14/04 19/05 23/05
Max achievable speed 2000 1000 2000 500
Download speed in test 1406 383 1307 452
Acceptable range 400 - 2000 200 - 1000 400 - 2000 50 - 500
DSL connection rates Down/Up 1824/448 1184/448 1888/448 1696/448
IP profile 1500 1000 1500 500
( all figs. in Kbps )
This is a link to a screenshot of a graph of the results of a number of ThinkBroadband speed tests since just after I joined PN.
http://picasaweb.google.co.uk/marcusb9/ScreenCap29510?authkey=Gv1sRgCLHO8KjB9KH01gE#5476706134536298...
And these are my router stats today:
Uptime: 0 days, 7:42:09
DSL Type: G.992.1 annex A
Bandwidth (Up/Down) [kbps/kbps]: 448 / 896
Data Transferred (Sent/Received) [kB/kB]: 0.00 / 0.00
Output Power (Up/Down) [dBm]: 11.5 / 15.5
Line Attenuation (Up/Down) [dB]: 31.5 / 63.5
SN Margin (Up/Down) [dB]: 10.0 / 12.0
Vendor ID (Local/Remote): TMMB / ALCB
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 0 / 0
FEC Errors (Up/Down): 22 / 2,604
CRC Errors (Up/Down): 22 / 257
HEC Errors (Up/Down): 15 / 150
I don't know whether all the above might help someone more tech savvy than myself to make sense of what is happening, but I must admit it might as well be in hieroglyphics as far as I am concerned.
Reading today in another thread I noticed that Mand wrote that it might help to reboot for a short period early in the day, and I got the impression that
it might be assumed that both computer and router would be switched on 24/7. Being a good little electricity saver, my practice is to switch off the router overnight and to hibernate the computer during the day when not in use, which seems reasonable for domestic use.
Is this a bad idea as far as speed is concerned?
Sorry about this long rant, but I'm feeling less than happy at the moment and am looking for some help in interpreting what is happening.
Re: I WAS very happy
29-05-2010 8:37 PM
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your stats show that you have a very long line, and so your speeds will be reduced. To be honest with your attenuation of 63.5 ( which may be untrue, as some routers cannot display more than this), on ADSL you should be getting syncs around 1200-1500, which equates to around 1000 throughput in reals terms. On ADSL2, you may squeeze a little more out. Your SNR is raised at 12dB, so if this reduced you may get a little more. I don't want to sound negative, but being realistic this is best case. however, we should rule out wiring issues. Can you post the same stats, connected to the Master Socket TEST socket, which you can get at, by removing the front half of the master socket. ( Assuming you have a new style Master socket).
Post these stats and we can see where we stand.
Re: I WAS very happy
29-05-2010 9:53 PM
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Regrettably, the test socket is a problem. Some time ago I fitted a BT iPlate and the long screws supplied with it have jammed the faceplate which can't now be removed without risking breaking up the whole unit. (A friendly electrician had a go but didn't want to go further in case he brought down BT on us.)
I do have a fairly long line. I don't know whether or not it goes cross country, but if it follows the road I guess it must be at least 2.1/2 miles, perhaps a bit more.
I think that if I could be sure of a reliable speed of around 1000 I should be reasonably content - at least I could be fairly sure of being able to stream internet radio, which isn't always easy at present.
Re: I WAS very happy
31-05-2010 4:46 PM
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I'm getting around 700 Kbps download speed today. And Pingtest .net still says that my connection is very good with zero packet loss, 39 ms ping and 2 ms jitter.
I guess we must be grateful for small mercies.
(I left my router switched on all last night - I wonder if that might have any connection with the improvement?)
Re: I WAS very happy
31-05-2010 4:53 PM
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after the ten days if you turn the router off overnight you should make sure that you turn it on between the hours of say 8 an 3 pm, (In the winter 1 hour after sunrise to one hour before)
Just been back and read your first post. Sometimes, It happened to me once, you get bumped by BT and that can take up to 3 days to get back,
Re: I WAS very happy
31-05-2010 5:16 PM
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Usually I've been turning the router on abt. 7.30 am and off abt. 9.30 pm, but I'll leave it on 24/7 for a while and see what that brings forth.
P.s. Congrats on being retired - I've been at "leisure" for over 20 years now. Never had to work so hard in my life.
Re: I WAS very happy
31-05-2010 5:51 PM
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jelv (a.k.a Spoon Whittler) Why I have left Plusnet (warning: long post!) Broadband: Andrews & Arnold Home::1 (FTTC 80/20) Line rental: Pulse 8 Home Line Rental (£14.40/month) Mobile: iD mobile (£4/month) |
Re: I WAS very happy
31-05-2010 10:08 PM
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When you say "reboot" I assume that refers to the computer. Does this imply that the computer as well as the router should be on all the time, or am I showing my ignorance and switching the router off and on is also described as rebooting?
Re: I WAS very happy
31-05-2010 10:20 PM
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jelv (a.k.a Spoon Whittler) Why I have left Plusnet (warning: long post!) Broadband: Andrews & Arnold Home::1 (FTTC 80/20) Line rental: Pulse 8 Home Line Rental (£14.40/month) Mobile: iD mobile (£4/month) |
Re: I WAS very happy
31-05-2010 10:25 PM
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Re: I WAS very happy
01-06-2010 7:00 AM
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Re: I WAS very happy
01-06-2010 9:12 AM
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jelv (a.k.a Spoon Whittler) Why I have left Plusnet (warning: long post!) Broadband: Andrews & Arnold Home::1 (FTTC 80/20) Line rental: Pulse 8 Home Line Rental (£14.40/month) Mobile: iD mobile (£4/month) |
Re: I WAS very happy
02-06-2010 12:54 PM
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Can someone riddle me this please: The whole TCP/IP thing works on retransmitting packets that fail to reach EACH hop of their destination intact for whatever reason. If BT monitored the proportion of retransmits between my router and their exchange they'd have a completely accurate indication of line quality. Why on earth do they (BT) use a disconnection (or not) to "determine" (i.e. guess) whether there's a problem (or not) with line quality.
Re: I WAS very happy
02-06-2010 1:30 PM
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If the inbuilt checking in TCP detects an error (eg CRC check) this gets logged and if there are too many the exchange will force a resync at a lower speed to try to get rid of the errors. Likewise if the noise margin falls too low a resync back to the target noise margin is forced which will also give a lower sync speed.
jelv (a.k.a Spoon Whittler) Why I have left Plusnet (warning: long post!) Broadband: Andrews & Arnold Home::1 (FTTC 80/20) Line rental: Pulse 8 Home Line Rental (£14.40/month) Mobile: iD mobile (£4/month) |
Re: I WAS very happy
02-06-2010 1:43 PM
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Hi Jelv - thanks for your reply.
Not sure it's what you intended but you've made my point for me.
Quote from: jelv Packets can be dropped because either end is trying to shove data down the line faster than the line or exchange or link from exchange to Plusnet can handle; so a dropped packet doesn't mean there is something wrong with the line.
Yes it does - it means the line is not fast enough for the data rate - therefore you'd respond by slowing down the data rate - my point exactly.
Quote from: jelv If the inbuilt checking in TCP detects an error (eg CRC check) this gets logged and if there are too many the exchange will force a resync at a lower speed to try to get rid of the errors. Likewise if the noise margin falls too low a resync back to the target noise margin is forced which will also give a lower sync speed.
Again - exactly my point - so you agree that the exchange can determine whether or not to slow down (or even speed up) the line dependant on errors/re-trans. So presumably you agree that basing line speed on the totally arbitrary and irrelevant fact of whether I turn my router on or off is misconceived.
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