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fishsauce
join:2009-05-22
2 edits | DSL sync lost due to high open?
My DSL connection loses sync every night and is unable to get speeds higher than 1Mbps, usually hovering between 300Kbps and 64Kbps. It always starts at night, though it may last through the next day, and it goes away when I leave the phone off hook, which is why I am suspecting a high open. It somehow almost always manages to get a sync of some severely low speed too, only occassionally getting caught in a loop of failed sync attempts. I've tracked the times when it begins for the past month now, and it really does start only at night, around 10PM or so, with the exception of a few rogue events that occur in the afternoon.
The fact that it goes away when I leave the phone off hook leads me to suspect a high open, but I just called the voice line support and the automated test returned no problems. The line does get incredibly staticky when the sync drops. I've spent yesterday checking every filter individually and replacing 'bad' ones until I heard no more static, and I was able to keep a sync for about 36 hours until tonight when the problem and static returned. Checking at the NID always returns a good signal, although usually I am able to get more than a day's worth of good signal by plugging and unplugging the phone jack at the NID so it may just be that I didn't leave my router out there long enough for the problem to return. Visually inspecting the NID doesn't show any visible signs of bad connections to me, and I've replaced the phone plug in the jack with a new one already (but left the socket untouched) which yielded about a month of good sync before the problems returned again recently.
Answers to the usual questions:
1) Which AT&T DSL Package do you have
- Pro (3.0Mbps down)
2) Which modem brand and model do you have?
- NETGEAR DG834G
3) Are you using a router? If so, provide the brand and model.
- Same as above
4) Is your PPPoE login info (username & password) entered in the modem, in your router or do you use PPPoE software?
- It's in the router
5) Describe the lights on the modem when the trouble occurs.
- Everything appears normal, it's just that the speeds are severely slow
6) Confirm that you've checked to ensure that ALL devices plugged into the wall jacks serviced by your DSL phone number (except the DSL modem) have filters fitted.
- Yes, and I checked yesterday to make sure there is no static after they've been installed, although the static is now back
7) Confirm that you've powered off the modem and started it again and whether or not that made any changes with your problem.
- Yes, countless times
8) Do you hear any type of noise on the DSL phone line or any other unusual telephone symptoms?
- Yes, there is high pitched DSL static
9) Provide line stats as follows (this is just a snapshot right now with the phone on hook, the download speed works its way down as time passes):
- Connection Speed = 480kbps/512 kbps (down/up)
- Line Attenuation = 45.0 db/25.5 db (down/up)
- Noise Margin = 4.1 db/14.0 db (down/up)
I'm hoping someone can give me some insight as to what might be going on because this problem has been going on for more than a year already (on and off) and the 8 techs that have come here are unable to find anything wrong with it. Going by the theory of a high open and the fact that it seems to remedy itself for awhile when I unplug and replug the NID jack, it seems to me like the jack isn't very secure and is subject to temperature fluctuations when it gets cooler at night and warmer during the day. I'm also able to move the plug in and out of the socket slightly by about 1mm of distance. I've replaced the plug side of the jack, but the socket is still the orignal since I don't know how to replace that. The last time I called ATT to take a look and replace it, they wanted to charge me $99, which was why I opted to redo the plug on my own, but I'm almost willing to pay the $99 if replacing the socket side would end these troubles permanently... that is, if that is the cause of these problems.
Thanks a lot in advance for reading all this and for helping! | |
wayjac
Premium,MVM
join:2001-12-22
Indy
 ·AT&T Midwest
| said by fishsauce  :The last time I called ATT to take a look and replace it, they wanted to charge me $99, which was why I opted to redo the plug on my own, but I'm almost willing to pay the $99 if replacing the socket side would end these troubles permanently... that is, if that is the cause of these problems. You should consider connecting the modem just ahead of the test jack at the surge protector before and during the trouble time
If the test jack is the problem connecting to the surge protector would remove it from the circuit
In the image below the surge protectors are on the right side of the nid and they are black
| |
d_l
Barsoom
Premium,MVM
join:2002-12-08
Reno, NV
| reply to fishsauce
If your NID doesn't look like the one wayjac posted and you are having a problem deciphering it, you could take and post a photo of it here to get test connection help. | |
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