connection speed dropping

started using adsl2+ a while ago

at the start my sync rate was about 9500 which stayed stable for a while
i checked my router log and it seems i got about 50 connects/disconnects late one night (about midnight all within about 10 mins) now its stuck at 6500

but thats not really my problem.it seems in the last 3 months my connection has been up and down usually about once a month.but all the time getting slower and slower

during this time ive phoned support ,to be told "its your router try swapping it"
unfortunaly i refuse to buy another £100 router to test this theory since after the initial bout of dissconnects it worked fine for 400 hours plus
if its broken why would it magically work fine for hundreds of hours then not?then be fine for hundreds of hours again?
since starting using adsl2+ ive been told its my router a few times but im using it now,it works fine if it needed replacing i would have to demonstrate it now working which i cant actually do.i cant imagine the shop i bought it from would agree since it cant be demonstrated to be faulty
today again disconnects although the router says im connected i cant acces the internet

id like to ask is there anyone else who is having problems of late thats similar?

i checked my exchange its green and has been for months

oh router stats

ADSL Link Downstream Upstream
Connection Speed 6656 kbps 1155 kbps
Line Attenuation 39.5 db 19.0 db
Noise Margin 10.2 db 5.8 db

just found this doing a adsl test
IP Profile for your line is - 5500 Kbps
not sure why its @ that..

Edited by miller02 (Tue 31-Aug-10 21:22:27)

Your Sync speed is good for ADSL Max but not for ADSL2+. Could you have been put on ADSL Max? What does the router show your Connection/Line Mode as?

Run http://speedtester.bt.com/ and post full results.

As you are getting very low actual throughput, this must be due to congestion or bad wiring.

FAQ


Test1 comprises of Best Effort Test: -provides background information.

Download Speed
4575 Kbps

0 Kbps 7150 Kbps
Max Achievable Speed

Download speedachieved during the test was - 4575 Kbps
For your connection, the acceptable range of speedsis 1000-7150 Kbps.
Additional Information:
Your DSL Connection Rate :6656 Kbps(DOWN-STREAM), 1155 Kbps(UP-STREAM)
IP Profile for your line is - 5500 Kbps
The throughput of Best Efforts (BE) classes achieved during the test is - 12.75:16.0:71.25 (SBE:NBE:PBE)
These figures represent the ratio while sententiously passing Sub BE, Normal BE and Priority BE marked traffic.

The results of this test will vary depending on the way your ISP has decided to use these traffic classes.


i have a netgear dg834v4 router with the latest firmwear (support advised to try it)
V5.01.16
it is set to adsl2+ ppoa nat enabled(told to use ppoa)

nothing has changed since i synced at 9500 line to main socket 1 filter (which i have swapped twice)
have been asked to try plugging router into main socket (underneath plate on bt socket but cant as i have an old socket without this feature)

plus adslmax cant get the

1155 Kbps(UP-STREAM)

checking other threads here and noticed someone else getting 6656 sync speed

odd i thought

Edited by miller02 (Tue 31-Aug-10 23:52:57)

In reply to a post by miller02:

it is set to adsl2+ ppoa nat enabled(told to use ppoa)

That's a config setting not a status. All it means is that you have requested ADSL2+; not necessarily that it gave it to you. However, I understand on Netgears it is hard to find out the actual Connection Mode negotiated. As you noticed that high U/S Sync indicates ADSL2+.

Sorry, I misread your OP or confused it with another and thought you were on a very low actual download speed. Even so, 4675 Kbps is still about 1 Meg too low for your Sync and the IP profile is also about 0.5 Meg too low.

AS I said, it could be bad wiring or contention.

adslmax wont sync @ 1150 upstream so i cant have ,its impossible

and like i said the exact same setup wireing used to sync at 9500 (was getting about 900kbs)

Not necessarily your wiring, but BT's.

a quick look adsl2+ is 20 meg down and 2.5 up (max)

so my upload is over 1meg wouldnt that mean my download should be just below 10 meg

as line noise would effect up and down load (wouldnt it ?)

Without getting too technical, what ADSL2+ does is more than double the capacity of Max DSL broadband. This potentially means download speeds up to 20Mb and upload speeds anything up to 2.5Mb. (Note: these are maximum theoretical speeds. It's unlikely you'd receive speeds this high, even under the very best conditions. Below you can find out why.)

There's no proportionally in it! It all depends on your line length. Most of us get near max U/S Sync as determined by the ISP, but D/S Sync as a function of attenuation.

FYI: Max D/S Sync on ADSL2+ is 24 Meg, but many ISP's market it as 20 Meg to be cautious.

Yes, you should be getting about 9.25 Meg D/S Sync, but based on your attn. not on you U/S Sync.