Hey everyone, I’ve been noticing some weird interruptions with my Wi-Fi recently, and I’m starting to suspect someone might be using a Wi-Fi jammer. I tried doing some searches but didn’t see what I needed. What’s the best way to defeat these wifi jammers dirtbags are using these days for breakins? Would love to hear any tips or solutions you’ve tried!
Only way is a hardwired option… no way to defeat a bunch of signals that mess up your wifi…
Hard-wired is the only correct answer. Wi-Fi is simply too easy to disrupt. It can be done via brute force, or elegant solution.
In the elegant solution column, Anyone with a modicum of technical skill can simply run a DEAUTH flood from a random laptop. The DEAUTH flood is done by scanning your wireless traffic, gathering MAC addresses of client devices, and impersonating them. It sends forged de-auth packets to the AP from those MACs, indicating you’re signing off, and the AP drops the client, forcing the client to re-associate with the AP… and you do this continuously. It knocks wireless clients off the network, and effectively blinds wifi cameras.
Alternatively, you simply brute-force jam the wifi. You broadcast interference on the wifi bands, and nothing gets through. This is trivially easy, because wifi is regulated to be very low-power, and jammers pump out a lot more RF. Once the jammer powers up, it’s like your friend trying to carry on a regular conversation in a loud-as-hell nightclub; you can’t even begin to hear them.
Wires. Just run wires.
Wires.
And for incoming service, have failover. You could have a bidirectional failover with a neighbor, via hidden and unexpected buried cables. Higher end or custom routers can have multiple upstream links…which you could both do for each other, to protect against wifi jamming, cell jamming (in case you already have a backup cell modem), and cable cuts. Or have both local service + StarLink or whatever. This gets complicated though.
For the stuff that has to be wifi, I’d prefer to have a jamming detector what would trigger an immediate advance warning, but the market doesn’t seem very well developed with much usable. I’ve thought about making a “monitor all” type device that looked for internet outages, wifi jamming, monitored wifi device missing, cell jamming, rf code/opening brute force attempts, and…all that.
Or… Maybe… An NVR that warns you of disconnection/image loss when one of your cameras goes offline…
Aaand a service that would notify you when the NVR goes offline too… We could call it, lets say, cloud service…
I have to look up what a fail over is
Are you asking for a wifi jammer jammer?
I think she’s asking for a wifi jammer wifi jammer.
PoE Reolink camera system with local storage, no monthly fee
Only way to be sure is to not rely on anything wireless for security.
But if you have to use WiFi for something then ensuring Protected mangement frames (PMF) is enforced can mitigate de-authentication attacks. De-auth is the easiest way someone can mess with WiFi device connections.
PMF was optional in WPA2, and mandatory in WPA3.
Although PMF will do nothing against RF jamming attacks where the 2.4GHz / 5GHz / 6 GHz airwaves are flooded.
And many IoT devices do not support WPA3.
So basically, don’t rely on wireless for security.
I get what you mean with deauthing being the easiest way, but in the context of a home intruder the easiest way for them is likely going to be buying a jammer on alibaba and using the on switch to jam every wireless signal in a 50 foot radius, I don’t think many of the smash and grab types are taking the time to scan the airwaves and use their best guess to deauth some connections that may or may not be what they’re looking to jam.
But anyways yeah, hardwire that shit, jamming is incredibly easy.
POE cameras. Ethernet to USB adapters if your electronics don’t have an ethernet port.
Hell, even wire your TV(if you still have one) to ethernet.
The only way to defeat a wifijammer is to not have wifi.