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Cable problems after a storm

post #1 of 9
Thread Starter 
The area I live in got a fairly nasty thunderstorm last night and since then I've been having problems with my cable TV. I'm trying to determine what the problem is because I can't meet with a repair guy until Thursday.

I'm having pixelation/freezing problems on two TVs. One is a bit worse than the other. The third TV isn't even getting a picture. It just has a message that states the channel will be available shortly. The guide works fine. I tried unplugging the STB, but that didn't help at all.

I used the diagnostic screens to check the signal and all three TVs are getting approximately the same signals, which aren't all that good. But the TV that's getting the best picture shows

Can anyone figure out what's going on based on the info I provided? I assume this problem is related to the storm as everything was fine before it. But something must have happened somewhere. It seems like the neighbors would be complaining too though and Comcast would send someone out to check at the pole.
post #2 of 9
Could be various issues. I'd say be patient and wait for Thursday.
post #3 of 9
Thread Starter 
But knowing Comcast, they won't show up until next Monday.
post #4 of 9
Then Monday it is...
post #5 of 9
Same here last week after local storms; the TV screen said the channel would be available shortly, and also gave an error code. Comcast CS rep tried to jog the STB, and after 30 min or so it was OK.

One other neighbor had this as well, but another did not, and CS said it takes 3 complaints to trigger an automatic outage response. In my case, the TV was mostly out, but not all channels, and the Internet was ok.

I cancelled the service call after the TV started working again.
post #6 of 9
Could be many things, but the low signal strength is your problem. Could be a node out in the area, thus lowering your signal as others in the area are hogging off another node. Or it could just be as simple as a connection at a pole became loose.
post #7 of 9
Quote:
Originally Posted by sitlet View Post

Could be many things, but the low signal strength is your problem. Could be a node out in the area, thus lowering your signal as others in the area are hogging off another node. Or it could just be as simple as a connection at a pole became loose.
That's just a bit nonsensical. Nodes just don't suck the juice out of other nodes. I'd believe a sucked out connector, especially if there were strong winds or tree falling issues. Perhaps they did a hasty repair or amplifier replacement and they'll be back to balance it. I've worked a bunch of storm restore projects and know the goal is to get as much back on as quick as you can then go back to fine tune it so be patient (but be persistent too!)...
post #8 of 9
If there are analog channels in your system, what do they look like? Are they all noisy/snowy?
That will tell you if the signal is low.

If there is an analog channel 19, does it get intermittent bursts of "herringbone" interference (lines and chevrons on the screen)? That channel is the same frequency band as many VHF two-way radios, and it will show massive interference if there is a break in the cable shielding someplace. This is called "ingress", and it will be even worse if the TV signals are low.

Ingress of local signals (both TV, and two-way radio) over the top of the Digital channels will make many of the digital channels show a "loss of signal" message, or cause intermittent breakup.
post #9 of 9
Wonder if the OP got his issue(s) resolved.
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