03-14-2014 9:40 PM - edited 03-14-2014 9:41 PM
I have been a customer with ATT Uverse for about 5 years and we continue to have issues. Finally about 5 months ago, we somehow got a technicial who took pity on us and made some adjustments that made our service work better (not 100% but more like 90%).
Anyways, he told us we have an electrical noise problem. We have tried to locate the source with an am radio but can't seem to locate the issue. All of the outlets test ok according to the outlet meter. There's a little noise everywhere but we can't locate the source.
Here are some UVrealtime screenshots. Any advice appreciated. Please let me know if you see anything other than a noise issue as well.
Btw, we have the cable really on one cable from the TV and router to the cable input area (sorry for my bad terminology)
We have two surge protectors: one tripplite and one non tripp lite.
03-14-2014 10:19 PM
03-15-2014 1:43 AM - edited 03-15-2014 1:44 AM
If not reboots, issue most likely voltage back feeding from piece of equipment...some TVs produce voltage that feeds back into cables to receiver, receiver to RG, after a lot of errors RG reboots. There is a grounding devices attach to coax out of tvto electric ground of wall, not to a strip.
It's been two hours and there haven't been any resets so it looks like there's voltage coming from the TV. What are some remedies for this?
I read my home inspection report from 5 years ago and it indicated the house was grounded BUT it indicates there's a broken outlet upstairs.. Not sure if that will be a solution but we'll try it. We only tried the outlets downstairs.
Any other remedies?
03-15-2014 5:52 AM
03-15-2014 3:09 PM
We're fairly certain it's the TV. The outlet itself is grounded.
It would be great to get a name to that grounding device.
03-16-2014 9:26 PM
We thought it was the TV but it wasn't. We have:
1. Turned the tv off and disconnected=errors
2. Connected to the battery=errors
We did disconnect a Sprint Airwave (makes a cell tower in the house because our Sprint signal is terrible). So far so decent. There were 7000 corrected blocks but otherwise there really haven't been any errors. Will monitor this for a while.
03-16-2014 9:47 PM
03-17-2014 8:48 PM
My husband works with electricity for the Navy (though completely different) and these were his findings:
To recap, here are the steps that we have taken to this point:
1. Our television has hot, neutral and ground prongs on the plug and I have been unable to identify any stray voltages (24V) or less other than when in the proximity of the power plug.I checked all the HDMI (even replaced with component cables) cables connected at the rear of the TV.
2. We disconnected all CAT5 cables from the back of the RG and the failures persisted
3. We placed the RG on UPS (UPS not connected to 120V) and the failures persisted
4. I checked the ground bar in the junction box where service enters the residence and found no abnormalities (0 OHMS from the bar to ground)
5 Installed an additional ground bar in the coax supply in the residence to the RG and routed the ground to a known good receptacle ground
6. All power outlets in house have tested grounded
7. We have eliminated power to nearly all the electrical equipment in and around the RG (surround sound system, UVERSE cable WIFI, AIRAVE, DVD player, printer on WIFI, XBOX and WII) and have not seen a change in the failures.
8. Conducted voltage measurements on COAX cable at the RG to ground on a nearby receptacle and found no AC voltage.
03-17-2014 10:34 PM - edited 03-17-2014 10:42 PM
Would it help to change the channel on my RG? It's on channel 5, I believe.
It looks like it's on auto and the channel was chosen...
03-18-2014 5:11 AM - edited 03-18-2014 5:13 AM
Sounds like you have covered the waterfront without success, How about something hard wired and critical to life, such as furnace (high efficient gas furnace is known offender or water pump. Can you turn off either for a short period, as a test?
Another thought - HAM or amatuer radio operator in neighborhood - all the way to the VRAD, which leads to problem with electric lighting on the street??
03-18-2014 3:29 PM - edited 03-18-2014 3:30 PM
We really have. Next, we're going to hook up the cable box and computer to the cable right where it meets the house to disqualify interior electrical noise.
Then, we'll go circuit breaker to circuit breaker to see if we can narrow something down. We did this earlier and it excluded the furnace. We'll be trying it again. How would we detect a ham radio in our neighborhood?
Then, we'll have a electrician come out to double check everything.
Here are updated screenshots. We only have the modem, dvr and tv hooked up:
03-18-2014 3:41 PM
03-18-2014 7:47 PM
Results when modem is plugged into the cable that comes into the house and then ethernet from laptop plugged into modem:
Problem suggests an EXTERIOR problem.
Contacting Uverse for technical support
We'll keep an eye out for Ham radio equipment