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Need Some Networking Help, Tech Board

Posted on 2/10/16 at 10:41 am
Posted by elprez00
Hammond, LA
Member since Sep 2011
29365 posts
Posted on 2/10/16 at 10:41 am
Here's my dilemma. Background: I have ATT DSL and phone. It's my only option,, no cable in my subdivision. Have a DSL modem, Netgear router, and a microcell. I don't even have a phone plugged into the wall.

About a month ago, my internet quit working. Called ATT, they came out and checked the line and told me they found nothing wrong. Told me it was something on the house side. Now, I've had ongoing problems with ATT for pretty much my entire time owning the house. They tried to come out before and tell me it was a house issue, yet the tech was ultimately able to adjust something outside that made everything work.

As a check, I switched outlets to see if it made a difference. Here's what I found: When I plug the Microcell into my router, I lose the DSL connection. If I unplug it, it works fine. Also, if I plug in my home phone and someone calls, I lose internet connection.

Is there anyway possible that this could be a wiring issue in my home? To me, this has to be an issue with the modem. This is my 4th modem in 6 years with ATT. Any ideas?
Posted by sfdurst
New Iberia
Member since Dec 2009
195 posts
Posted on 2/10/16 at 2:51 pm to
I have not had DSL service in a while. I would check to make sure that the filter attached to the home phone is good (swap it out). I am not familiar with Microcell but you may need to check that you do not have an IP address conflict somewhere between the internal side of the DSL modem thru to your private side of the Net gear router.

How old is you house? Have you had work done on the comm lines before? IS the problem the same from any jack in the house?
Posted by elprez00
Hammond, LA
Member since Sep 2011
29365 posts
Posted on 2/10/16 at 2:57 pm to
Per ATT, the modem needs to be unfiltered. I've tested this on two different jacks with the same result. If it was an IP conflict I could see if it was dropping the wifi signal but my actual modem loses the DSL signal. (DSL light goes solid red)

House was built in 2008. Never had any work done on the comm lines.
This post was edited on 2/10/16 at 2:58 pm
Posted by sfdurst
New Iberia
Member since Dec 2009
195 posts
Posted on 2/10/16 at 2:58 pm to
When I used to manage DSL circuts for business, it was very seldom that the issue was internal to he office (wiring) with DSL. Usually it was bad modem, bad config for the setup on the DSL modem, or a problem with ATT the distribution point. If you go out the ATT box at your house your should have a set of jacks to test straight to ATT without the house wiring.
Posted by sfdurst
New Iberia
Member since Dec 2009
195 posts
Posted on 2/10/16 at 3:01 pm to
quote:

House was built in 2008. Never had any work done on the comm lines.


Chances of it being an internal wiring issue with the house very slim.

ATT is a PITA to deal with
Posted by sfdurst
New Iberia
Member since Dec 2009
195 posts
Posted on 2/10/16 at 3:03 pm to
If you leave the Microcell unattached everything is fine?

Does the DSL modem have multiple switch ports?
Posted by elprez00
Hammond, LA
Member since Sep 2011
29365 posts
Posted on 2/10/16 at 3:09 pm to
quote:

Chances of it being an internal wiring issue with the house very slim.

It's been a long battle between me and ATT. I was one of the first houses in my subdivision, so for the first year and a half I had internet service from a line literally run sitting on top of the ground about 200' from the node at the front of my subdivision. Every time the developer would cut the grass, they'd cut my internet. After bitching for a while, they buried the temp line for about half of the length. Still would get broken.

Then they ran fiber in the subdivision but never hooked my line up to it. Found this out when my neighbor put in the culvert to the driveway and they cut the line. I had a guy come out and spend 4 hours at my house troubleshooting problems about 2 years ago that I'm convinced was sent to try to find something wrong on the inside of the house so they could blame me. I'd lose service every time it rained. Ended up being an issue in the little tower or node by the street in front of my house.

Guy tried to tell me my low voltage was wired wrong. So it worked for years and then suddenly unwired itself and rewired itself incorrectly.

I hate ATT. I've tried begging Charter to get service run in our subdivision to no success. $40/m for 6mbps is bullshite.
Posted by elprez00
Hammond, LA
Member since Sep 2011
29365 posts
Posted on 2/10/16 at 3:12 pm to
quote:

If you leave the Microcell unattached everything is fine?


Yes. Modem connects, internet works. I plug the microcell in the router, then the modem will lose connection. If I plug my phone in and someone calls my house, the modem will lose connection until the call is completed.

quote:

Does the DSL modem have multiple switch ports

Not 100% sure I follow. It's a small 4"x4" modem with one phone input and one Ethernet output. Conventional, no wireless. Supposedly they tested the modem when I called and said it was fine.
Posted by sfdurst
New Iberia
Member since Dec 2009
195 posts
Posted on 2/10/16 at 3:28 pm to
From what you say it sound to me like there is an issue between the box at the road and your house. I feel for you man.
Posted by Bard
Definitely NOT an admin
Member since Oct 2008
51475 posts
Posted on 2/10/16 at 3:49 pm to
For the phone issue, you're correct that the modem should not be filtered, but anything else connecting to a phone jack (ie: phone or fax) in your house should be filtered.

I'm not familiar with the Microcell but doing a quick google search I can't see where a filter would need to be involved and I wonder if there's something in the GUI where it's trying to do DHCP or something.
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