ATTENTION: The ONLY ADSL 2 Speed Issue Thread

Old, inactive threads
Locked
dogwomble
Posts: 375
Joined: Sat Mar 17, 2007 12:21 am

ATTENTION: The ONLY ADSL 2 Speed Issue Thread

Post by dogwomble » Sat Sep 08, 2007 2:23 pm

Optus Wholesale have made the following statement to Exetel regarding this issue:

"Optus recognise that customers on a number of exchanges will experience slow periods of connection at various times due to congestion on a number of "BRAS". Optus has already addressed some of these issues and is in the process of addressing the remaining issues".

If there was anything more that Exetel could do then it would have already done it.

Senior management from Exetel are in contact with Optus, multiple times a day, addressing these issues - beyond that there is no more that we can do.

dan68
Posts: 2
Joined: Sun Oct 24, 2004 4:04 pm
Location: Chiswick NSW

Post by dan68 » Sat Sep 08, 2007 3:11 pm

Hi there,
since a few days I'm experiencing very very slow ADSL2 download speeds.
On ADSL2 since Jan '07, periodically running speed tests on www.speedtest.net and been achieving constantly above 5000 kbps download.
Since few days down speed is stuck on 200 - 250 kbps with no apparent reasons.
My modem is an Linksys AM300 + DLink router (DI624).

Actions already taken:
1) Isolation test --> No change
2) Modem firmware upgrade --> no change
3) Manual MTU change to 1400 --> no change

Here is modem status page

DSL Status: UP
DSL Modulation Mode: G.992.1 (G.DMT)
DSL Path Mode: INTERLEAVED
Downstream Rate: 6624 Kbps
Upstream Rate: 832 Kbps
Downstream Margin: 7 db
Upstream Margin: 12 db
Downstream Line Attenuation: 40
Upstream Line Attenuation: 55
Downstream Transmit Power: 19
Upstream Transmit Power: 11
LOS Errors: 0

PVC Status: UP
Encapsulation: RFC 2364 PPPoA
Multiplexing: LLC
Autodetect: Disable
VPI: 8
VCI: 35

PPP Login: Up
Internet IP Address: 220.233.170.11
Internet Netmask: 255.255.255.0
Internet Gateway: 220.233.1.193

tried to ping www.exetel.com.au --> no packet loss
tried to ping www.google.com.au --> no packet loss 250 ms avg speed

I'm not sure what other info might be helpful.
Ciao

- aNt -
Posts: 76
Joined: Tue Jan 03, 2006 10:38 pm
Location: Western Sydney

Post by - aNt - » Sat Sep 08, 2007 8:15 pm

I've been noticing slowdowns as well. Previously this has not been a problem but ever since Thursday night I have been getting very slow speeds.

BTW: I have no P2P running when testing via HTTP. I've noticed both local and international have been slow, however HTTP speed has increased slightly today.

I'm on Optus ADSL2+ 4mbit/812kbit.

Hopefully this is just because of congestion over the long weekend. Hopefully on Monday all will be back to normal again.

- aNt -
Posts: 76
Joined: Tue Jan 03, 2006 10:38 pm
Location: Western Sydney

Post by - aNt - » Sat Sep 08, 2007 9:52 pm

Strange, speed problem seems to be resolved as of now :P. Cheers if anything was done lol ;).

dan68
Posts: 2
Joined: Sun Oct 24, 2004 4:04 pm
Location: Chiswick NSW

Post by dan68 » Mon Sep 10, 2007 8:11 pm

I can confirm, it's all fine now..... speed is up as usual. They must have fixed something out there :shock:
Anyhow I must say that I'm not happy. If Exetel knew that something was wrong somewhere with the ADSL line, could have put out a note or something and I would have saved hours of stupid isolation tests, change of drivers, changing cables, pinging 200 different sites and so forth
:twisted: :twisted: :twisted:

- aNt -
Posts: 76
Joined: Tue Jan 03, 2006 10:38 pm
Location: Western Sydney

Post by - aNt - » Mon Sep 10, 2007 9:15 pm

The problem has reoccurred. Anyone else having issues right now as well?

- aNt -
Posts: 76
Joined: Tue Jan 03, 2006 10:38 pm
Location: Western Sydney

Re: ATTENTION: The one threaded ADSL 2 speed issue!

Post by - aNt - » Tue Sep 11, 2007 7:00 pm

dogwomble wrote: - Approximately what speeds were you obtaining before you noticed the problem?
- Approximately what speeds are you obtaining now?
- What sync speed does your router report, and what are the attenuation figures? (If you're not sure where to find this info, refer to your routers manual if you have it handy, otherwise ask on here)
- Have you tried powercycling the router? (ie. turning it off and on again)
- Have you tried an 'isolation test'? (ie. running the modem on the line by itself with no phones/faxes/filters/etc.)
- Is your modem set to use the G.DMT protocol?
- Have you tried (temporarily) disabling any firewalls etc? This is unlikely, but sometimes can affect things, particularly on lower end hardware.
I currently work as a Helpdesk Representative for another ISP that resells Optus ADSL2+.

1) Maximum for my link, approximately 350-400KB/s
2) Maximum of 120KB/s via HTTP (and everything else)
3) 4009/675 - 46.5dB (Downstream), 30.0dB (Upstream). SNR 12.0dB down. SNR 12.0dB up.
4) Of course ;).
5) Yes.
6) No, I find this irrelevant. As it is an ADSL2+ connection it should be in G.DMT.BIS.PLUS mode. Furthermore, my connection isn't dropping.
7) Don't have any firewalls

In my experience, due to the fluctuation in speeds, it looks to me like there is congestion issues in peak time.

*EDIT* - Just in case you might be wondering, there was NO P2P or anything running in the background when testing. Furthermore, more than 1 PC was tried in isolation.

- aNt -
Posts: 76
Joined: Tue Jan 03, 2006 10:38 pm
Location: Western Sydney

Post by - aNt - » Wed Sep 12, 2007 7:30 am

This is definitely only an issue in Peak:

Test run on 12/09/2007 @ 07:30 AM

Mirror: Exetel
Data: 15 MB
Test Time: 38.5 secs

Your line speed is 3.26 Mbps (3255 kbps).
Your download speed is 407 KB/s (0.4 MB/s).

dogwomble
Posts: 375
Joined: Sat Mar 17, 2007 12:21 am

Post by dogwomble » Wed Sep 12, 2007 9:30 am

AthlonXP,

OK, we seem to be getting a bit more information coming out of this. And you seem to have covered quite a bit already.

Incidentally, which exchange do you run off?

To me it looks like either Exetel are a bit congested (however I don't know how badly it's effecting everyone else) or whether there might be a congestion issue at that exchange (which is why I was asking).

Perhaps an Exetel rep can comment further?

- aNt -
Posts: 76
Joined: Tue Jan 03, 2006 10:38 pm
Location: Western Sydney

Post by - aNt - » Wed Sep 12, 2007 9:39 am

dogwomble wrote:AthlonXP,

OK, we seem to be getting a bit more information coming out of this. And you seem to have covered quite a bit already.

Incidentally, which exchange do you run off?

To me it looks like either Exetel are a bit congested (however I don't know how badly it's effecting everyone else) or whether there might be a congestion issue at that exchange (which is why I was asking).

Perhaps an Exetel rep can comment further?
Cheers for the reply.

BLACKTOWN exchange (code: BLAC).

- aNt -
Posts: 76
Joined: Tue Jan 03, 2006 10:38 pm
Location: Western Sydney

Post by - aNt - » Wed Sep 12, 2007 12:10 pm

Update in Peak:

Test run on 12/09/2007 @ 12:10 PM

Mirror: Exetel
Data: 15 MB
Test Time: 38.16 secs

Your line speed is 3.28 Mbps (3285 kbps).
Your download speed is 411 KB/s (0.4 MB/s).

- Seems OK for now, i'll monitor and post again at around 6-8pm tonight.

- aNt -
Posts: 76
Joined: Tue Jan 03, 2006 10:38 pm
Location: Western Sydney

Post by - aNt - » Wed Sep 12, 2007 6:10 pm

Test run on 12/09/2007 @ 06:09 PM

Mirror: Exetel
Data: 15 MB
Test Time: 38.47 secs

Your line speed is 3.26 Mbps (3258 kbps).
Your download speed is 407 KB/s (0.4 MB/s).

Seems very good so far. Cheers if anything was done ;). I'll post again in the next hour or so.

- aNt -
Posts: 76
Joined: Tue Jan 03, 2006 10:38 pm
Location: Western Sydney

Post by - aNt - » Wed Sep 12, 2007 9:07 pm

Test run on 12/09/2007 @ 09:06 PM

Mirror: Exetel
Data: 15 MB
Test Time: 102.06 secs

Your line speed is 1.23 Mbps (1228 kbps).
Your download speed is 153 KB/s (0.15 MB/s).

This is what I was talking about :|. Noticeably slower.

- aNt -
Posts: 76
Joined: Tue Jan 03, 2006 10:38 pm
Location: Western Sydney

Post by - aNt - » Wed Sep 12, 2007 9:44 pm

Couple of other tests for comparison:

Test run on 12/09/2007 @ 09:39 PM

Mirror: Exetel
Data: 15 MB
Test Time: 132.95 secs

Your line speed is 943 kbps (0.94 Mbps).
Your download speed is 118 KB/s (0.12 MB/s).

Test run on 12/09/2007 @ 09:41 PM

Mirror: OptusNet
Data: 15 MB
Test Time: 127.69 secs

Your line speed is 982 kbps (0.98 Mbps).
Your download speed is 123 KB/s (0.12 MB/s).

Image

- aNt -
Posts: 76
Joined: Tue Jan 03, 2006 10:38 pm
Location: Western Sydney

Post by - aNt - » Mon Sep 24, 2007 7:51 pm

Speeds are getting worse, this is terrible. I'd expect at least 1.5mbits as stated minimum for an ADSL2+ service.

[`[*Test Results*]`]
[(----------------------------------
Test run on [*24/09/2007*] @ [*07:51 PM*]

Mirror: [*Exetel*]
Data: [*15 MB*]
Test Time: [*212.2 secs*]

Your line speed is [*591 kbps*] (0.59 Mbps).
Your download speed is [*74 KB/s*] (0.07 MB/s). )]

Locked