Search found 20 matches

by amx
Thu Feb 05, 2015 2:04 pm
Forum: ADSL connections
Topic: Line down for 20 days, and no action
Replies: 3
Views: 644

Re: Line down for 20 days, and no action

It was fixed last night, but noticed only this morning, as I had disconnected all devices connected to the main modem,
so they wouldn't suck up the data through my phone's routed hotspot.
by amx
Wed Feb 04, 2015 1:56 pm
Forum: ADSL connections
Topic: Line down for 20 days, and no action
Replies: 3
Views: 644

Line down for 20 days, and no action

Our line (the entire phone/adsl) has been down since 12th of Jan, while we were away. It is obvious from the usage that has been "0 byes" since. When we were back on 24th I called exetel to have it fixed. I was sent a sms, which was sent every day that it will be fixed by 7pm on 3rd of Feb or earlie...
by amx
Fri Nov 11, 2011 12:24 pm
Forum: ADSL connections
Topic: ADSL2 speed drop, missing tones!!
Replies: 30
Views: 6798

Re: ADSL2 speed drop, missing tones!!

Here I have the log plots in the past twelve days. The link is rock solid, except for when the storms hit in the past couple of days (the downstream SNR shows big dips of around 2dB). Even then the link didn't go down. There are some very short dips of around 1 dB that I still haven't been able to t...
by amx
Sat Oct 29, 2011 6:48 pm
Forum: ADSL connections
Topic: ADSL2 speed drop, missing tones!!
Replies: 30
Views: 6798

Re: ADSL2 speed drop, missing tones!!

I am thinking is there anyway that an ISP can produce a similar data. They have access to what the exchange sees on the line, so it should be a matter of activating a log over a period of time, and then either analysing it themselves, or passing it to the customers to check. There are many flavors o...
by amx
Fri Oct 28, 2011 10:13 pm
Forum: ADSL connections
Topic: ADSL2 speed drop, missing tones!!
Replies: 30
Views: 6798

Re: ADSL2 speed drop, missing tones!!

I have plotted some of the modem data before and after removing the downlights. I thought people might be interested in seeing what is happening. I am sure we can have long discussions on the modem behaviour. One note: I have removed all cases were the modem was not visible to our server at work. Mo...
by amx
Sat Oct 22, 2011 2:57 pm
Forum: ADSL connections
Topic: ADSL2 speed drop, missing tones!!
Replies: 30
Views: 6798

Re: ADSL2 speed drop, missing tones!!

Today I browsed the lighting shops around Auburn, and found the simplest solution, which was to get Gu10 lights with a simple attachment, so no need to get new fittings. The cost was $8.5 per lamp for 13W including the Gu10 attachment. I am left with four transformers and the halogens lamps (which I...
by amx
Fri Oct 21, 2011 9:36 pm
Forum: ADSL connections
Topic: ADSL2 speed drop, missing tones!!
Replies: 30
Views: 6798

Re: ADSL2 speed drop, missing tones!!

At adsl frequencies usually nothing helps 100% except removing the source of noise. I won't be happy with a compromise, and I don't want to spend my money on filters!!. I am currently looking at 240v solutions particularly CFL (which I had put off until the intensity-price hits a sweet spot), but I ...
by amx
Fri Oct 21, 2011 4:49 pm
Forum: ADSL connections
Topic: ADSL2 speed drop, missing tones!!
Replies: 30
Views: 6798

ADSL2 speed drop, missing tones!! Downlight effect

This is the exact model for the transformers used in my downlights. Apparently it has to adhere to the EN55015 RF emission standard (I will google later to see what it really means). So far I have tested using a cat5 cable for all wires (except those in the roof), and no difference. So I am guessing...
by amx
Thu Oct 20, 2011 8:56 pm
Forum: ADSL connections
Topic: ADSL2 speed drop, missing tones!!
Replies: 30
Views: 6798

Re: ADSL2 speed drop, missing tones!!

I think I have found the source. After running the script in the past couple of days, I noticed a pattern with the lights!. When I turn on the downlights in the living room downstairs the speed drops. It doesn't happen with any other downlights in other areas. I will have to go under the roof to see...
by amx
Tue Oct 18, 2011 9:22 pm
Forum: ADSL connections
Topic: ADSL2 speed drop, missing tones!!
Replies: 30
Views: 6798

Re: ADSL2 speed drop, missing tones!!

Interesting! For this modem help from the telnet session returns a different CLI than from the busybox shell > help ? help logout exit quit reboot adsl xtm brctl cat loglevel logdest virtualserver ddns df dumpcfg dumpmdm meminfo syslog psp echo ifconfig kill ping ps pwd sntp sysinfo tftp wlctl arp d...
by amx
Tue Oct 18, 2011 7:55 pm
Forum: ADSL connections
Topic: ADSL2 speed drop, missing tones!!
Replies: 30
Views: 6798

Re: ADSL2 speed drop, missing tones!!

I just did a quick perl script to dump the modem info into a file. I run this from a remote server, as I turn my local pc on and off. I am using a TPlink 8960, so if you use other modems some commands (the prompt and the adsl info) may be different. ------------------------- I run grep on the dumped...
by amx
Mon Oct 17, 2011 3:57 pm
Forum: ADSL connections
Topic: ADSL2 speed drop, missing tones!!
Replies: 30
Views: 6798

Re: ADSL2 speed drop, missing tones!!

Thanks Chathurad,

It looks like that I will have to dig deeper on my side and see what is triggering this.
I will setup a full log server on the modem, and will try to write a perl
script to grab the data off the modem, and see if I can find the root of the problem.

Thanks
AMX
by amx
Sat Oct 15, 2011 11:58 pm
Forum: ADSL connections
Topic: ADSL2 speed drop, missing tones!!
Replies: 30
Views: 6798

Re: ADSL2 speed drop, missing tones!!

Unfortunately, it happened again. Today when I came back home, I noticed the speed had dropped to below 3mbps, with all high speed tones missing. I tried several reboots to finally get a 10mbps speed. I am really running out of things to test here. What I think is happening is this: For some reason ...
by amx
Fri Oct 14, 2011 8:16 pm
Forum: ADSL connections
Topic: ADSL2 speed drop, missing tones!!
Replies: 30
Views: 6798

Re: ADSL2 speed drop, missing tones!!

I just ran DMT again to see how it looks like. Compared to what it was before when I was getting high speed the response has less notches in the 200-300 tones, but a few small ones around 390. Interestingly the downstream tx pwr is reduced from 19 dB to 0 dB, maybe an indication of the short telling...
by amx
Fri Oct 14, 2011 5:07 pm
Forum: ADSL connections
Topic: ADSL2 speed drop, missing tones!!
Replies: 30
Views: 6798

Re: ADSL2 speed drop, missing tones!!

Today the subcontractors came. They spent more than four hours going from pit to pit and to the pillar. I was with them most of the time, as couldn't work anyway (working from home). The problem was with a short (not a complete short more like a leakage) through the line. It happened to be from the ...