Frequent drop out and unstable speed, Toowoomba area

Connection issues, drop outs or speed related faults for ADSL and ADSL2+ services
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caspersky
Posts: 17
Joined: Fri Aug 15, 2008 3:43 pm
Location: Toowoomba

Frequent drop out and unstable speed, Toowoomba area

Post by caspersky » Sun Mar 14, 2010 1:28 am

I have been experiencing frequent, periodic drop outs lately. I am on 1500/256 plan with Exetel and i recently discovered that my line disconnects almost everyday during the time frame 11.30pm to 12.30am. There's nothing wrong with the DSL line but the Internet simply disconnects. This is getting annoying as it happens almost everyday. I also notice that the ping time varies from time to time. Sometimes i can get really excellent pings from google.com but sometimes i can get 500-700ms. Is there anything wrong with the line?

This is the line status generated by my Zyxel P-660HW modem/router:

noise margin upstream: 8 db
output power downstream: 13 db
attenuation upstream: 2 db
tone 0- 31: 00 00 00 00 22 33 33 55 55 66 55 55 44 33 32 00
tone 32- 63: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 64- 95: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 96-127: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 128-159: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 160-191: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 192-223: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 224-255: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 256-287: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 288-319: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 320-351: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 352-383: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 384-415: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 416-447: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 448-479: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 480-511: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
noise margin downstream: 45 db
output power upstream: 0 db
attenuation downstream: 2 db
tone 0- 31: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 32- 63: 00 00 00 00 00 00 00 00 00 22 22 22 22 22 22 22
tone 64- 95: 03 23 23 23 33 33 33 33 33 33 33 33 33 33 33 33
tone 96-127: 33 33 33 33 33 33 33 33 33 33 33 33 33 33 33 22
tone 128-159: 32 32 33 33 33 33 33 33 33 33 33 33 33 33 33 33
tone 160-191: 33 33 33 23 22 32 22 23 22 22 22 22 22 22 22 22
tone 192-223: 22 22 22 22 22 22 22 32 22 22 22 22 22 22 22 22
tone 224-255: 22 22 22 22 22 22 22 22 22 22 22 22 22 00 00 00
tone 256-287: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 288-319: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 320-351: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 352-383: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 384-415: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 416-447: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 448-479: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 480-511: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
LAN Information:
IP Address: 192.168.1.1
IP Subnet Mask: 255.255.255.0


Any help would be greatly appreciated.

CoreyPlover
Volunteer Site Admin
Posts: 5922
Joined: Sat Nov 04, 2006 2:24 pm
Location: Melbourne, VIC

Re: Frequent drop out and unstable speed, Toowoomba area

Post by CoreyPlover » Wed Mar 17, 2010 9:51 pm

"2db attenuation"! That seems an abnormally low value.

As for the drop outs, the fact that they are so regular is very unusual. I recall other similar threads on these forums but do not know of any satisfactory answer to explain them. Perhaps your best bet is to email residentialsupport@exetel.com.au and see what they say about either / both the drop outs and the spikes in latency (though for the latter, some ping tests or plots over time using something like http://www.pingplotter.com would probably be helpful for Exetel).
I am a volunteer moderator and not an Exetel staff member. As with all forum posts, mine do not constitute any "official" Exetel position. Support tickets may be logged via https://helpdesk.exetel.com.au or residentialsupport@exetel.com.au

caspersky
Posts: 17
Joined: Fri Aug 15, 2008 3:43 pm
Location: Toowoomba

Re: Frequent drop out and unstable speed, Toowoomba area

Post by caspersky » Wed Mar 17, 2010 11:16 pm

Yes 2db is too low, i keep getting 2~3db attenuation, would that indicate my line is unstable? The situation gets better this few days, let's hope i don't need to lodge a ticket at all.

CoreyPlover
Volunteer Site Admin
Posts: 5922
Joined: Sat Nov 04, 2006 2:24 pm
Location: Melbourne, VIC

Re: Frequent drop out and unstable speed, Toowoomba area

Post by CoreyPlover » Thu Mar 18, 2010 9:23 am

caspersky wrote:Yes 2db is too low, i keep getting 2~3db attenuation, would that indicate my line is unstable?
It indicates your line is close to perfect!

Attenuation represents the background noise level. The higher it is, the more noise and the more degraded the signal. Low attenuation is correlated to either high speeds (if you are on ADSL2+) or high noise margin (if you are on ADSL1) and you are indeed getting a high noise margin (45db). With a noise margin this high drop outs should be non-existent as the margin acts like a buffer. So the fact you are experiencing regular drop outs is quite strange and probably worthy of a fault ticket
I am a volunteer moderator and not an Exetel staff member. As with all forum posts, mine do not constitute any "official" Exetel position. Support tickets may be logged via https://helpdesk.exetel.com.au or residentialsupport@exetel.com.au

caspersky
Posts: 17
Joined: Fri Aug 15, 2008 3:43 pm
Location: Toowoomba

Re: Frequent drop out and unstable speed, Toowoomba area

Post by caspersky » Fri Mar 19, 2010 9:59 pm

Turned out one of my housemates was leaving her P2P program on unconsciously thus eating most of the upload bandwidth. Problem fixed, and my line is running lightning fast now (ping on google is 29ms) :D

CoreyPlover
Volunteer Site Admin
Posts: 5922
Joined: Sat Nov 04, 2006 2:24 pm
Location: Melbourne, VIC

Re: Frequent drop out and unstable speed, Toowoomba area

Post by CoreyPlover » Sat Mar 20, 2010 10:36 pm

caspersky wrote:Turned out one of my housemates was leaving her P2P program on unconsciously thus eating most of the upload bandwidth. Problem fixed, and my line is running lightning fast now (ping on google is 29ms) :D
Good to hear, but P2P shouldn't cause "drop outs". If it is, do you have a Netgear or Dlink modem, as these fail to handle the large NAT requests that P2P programs open. Perhaps upgrading to a Netcomm, Billion, etc might fix this (though simple capping of the uploads would probably work too)
I am a volunteer moderator and not an Exetel staff member. As with all forum posts, mine do not constitute any "official" Exetel position. Support tickets may be logged via https://helpdesk.exetel.com.au or residentialsupport@exetel.com.au

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