Person in area messing internet/telephone connections with CB. How can I find them?

How does Comcast know it is a CB?

You will need a signal strength meter and ride around while they are transmitting.
But,what is your plan if you find them?

 

X2 on the field strength meter.

Also agree how does Comcast know it's a CB operator doing it?

 

I believe it's as likely (or actually more likely) that someone is either going around in a vehicle equipped with a laptop and an external antenna and "war driving". Basically one (or a pair of persons) drive around and look for WiFi signals, then drive towards the source (someone's wireless router) and then spend some time trying to find the encryption code of the router. Once they have that (it's amazing how many purchasers install routers without changing the default password) they can log onto your system and kinda do whatever they want. If they're using one of the high powered wireless links in the vehicle, they can effectively tie up several routers in an area while they have their software run through a polling routine to look for passwords.
Even if they're not able to "crack" any router passwords, they can still make it very difficult for the legitimate subscribers to access their own systems just by the sheer power of the RF their mobile is transmitting with.

Because war drivers are, by their nature, typically operating from a moving station, they can be difficult to DF without a small group of folks with directional antennas to triangulate and who are ready to go when the problem starts up.


I'm assuming that you're using a wireless system in your house. If not, then the above would not necessarily apply to you. If you are, next time the trouble starts up, try this: turn off the wireless link in your computer(s), disable the wireless router's radio link (possibly from a menu in the Administrator's page), and use a "CAT 5" cable to go from the computer's Ethernet jack to either one of the "wired LAN" ports on the router, or just disconnect the router from the Comcast modem and plug straight in to the modem where the router usually does. See if that cures your problem.

Some "war driving" is done from base stations with high gain antennas and high powered wireless cards, but they're easier to find. It *can* be a handy way to get free service from a local Starbuck's, motel, or burger joint, but of course it may put you on the wrong side of the law for, say, "theft of services", but not all jurisdictions have the same laws. Running an unlawfully high power WiFi adapter can put you on the wrong side of federal statutes, however, and their teeth are pretty big.

By the way, back at that Admin's menu on your router -- you *have* changed your SSID and password, right?

Also, just for grins, not all Internet Service Providers have kept their infrastructure up to the capacity their subscriber base expects, but it's unlikely you'll get someone on the phone who is allowed to say, "Sorry, but we're still waiting for our Engineering and Construction departments to free up the funds to build out more capacity where you live. Those data rates we advertise are listed in the fine print of your contract as 'possible but not guaranteed', so we're sorry but you're out of luck."

Sorry for the really, really long reply.

Just a few not-so-random thoughts from a very old tech who's been dragged, kicking & screaming, into the 21st century. Let's see, where'd I put that box of spare 12AT7 tubes for my Univac computer? ....

 

Could be comcast just sucks, had many problems with internet and phone threw them.. They always have a stupid excuse.

 

If your problem is a local with a high power illegal CB, you would be able to see his base antenna. He would be close to you as in a 1/2 mile radius or closer. These guys can have anything from a tower 60ft. in the air with a horizontal beam to a 1.5 inch mast going straight up in the air 30ft. with a vertical antenna. Your symptoms suggest to me that it's not a local cb operator and Handlebar or jobrien927 have it right.

 

Cable is a shared connection. You're speed is worse at night because more people are home. More people streaming movies, music, playing games downloading, ect. It's the same thing that happens with cellular data. This is a bandwidth issue and the cable company is blowing smoke up your posterior.

sent from my EVO4gLTE
OCed and MEANbean

 

The antenna on the right is a vertical, it would be 22ft from the base of the antenna to the top. don't count the mast that holds it up. This is a very common antenna for budget systems. It could be 9ft but not as likely. The one on the left is a beam, still used on cb frequency but a hole different design. The cb operator that has one of these would also have a tower (more than likely) and it would be 30 to 60ft up in the air. These guys can and do cause a lot of interference to nearby electronics. I just don't know if that is your problem.