Dahua still sells 2MP cameras and has EOL on some 4MP cameras...Manufacturer decides when EOL will be...
5 GHz Wi-Fi’s shorter radio waves mean it can cover less distance and isn’t at good as penetrating through solid objects as 2.4 GHz Wi-Fi is. In other words, 2.4 GHz can cover a larger area and is better at getting through walls. This is why almost all cameras that are wifi are on the 2.4GHz....and why you don't want 5GHz for an outdoor camera. You need to run power anyway, so use a Powerline Adaptor and eliminate the wifi...
These cameras are not like streaming services - these cameras do not buffer like NetFlix does....pull your internet and the NetFlix will still stream for up to 30 seconds...pull the internet on a wifi camera and you lose the stream IMMEDIATELY...
You came to a site asking for advice....and said advice isn't what you wanted to hear...
@SouthernYankee has said it best:
I did a wifi test a while back with multiple 2MP cameras each camera was set to VBR, 15 FPS, 15 Iframe, 3072kbs, h.264. Using a wifi analyzer I selected the least busy channel (1,6,11) on the 2.4 GHZ band and set up a separate SSID and access point. With 3 cameras in direct line of sight of the AP about 25 feet away I was able to maintain a reasonable stable network with only intermittent signal drops from the cameras. Added a 4th camera and the network became totally unstable. Also add a lot of motion to the 3 cameras caused some more network instability. More data more instability.
The cameras are nearly continuously transmitting. So any lost packet causes a retry, which cause more traffic, which causes more lost packets.
Wifi does not have a flow control, or a token to transmit. So you devices transmit any time they want, more devices more collisions.
As a side note, it is very easy to jam a wifi network. Wifi is find for watching the bird feed but not for home surveillance and security.
The problem is like standing in a room, with multiple people talking to you at the same time about different subjects. You need to answer each person or they repeat the question.
Test do not guess.
For a 802.11G 2.4 GHZ wifi network the Theoretical Speed is 54Mbps (6.7MBs) real word speed is nearer to 10-29Mbps (1.25-3.6 MBs) for a single channel
I want to extend the range of my LAN setup to the end of our (almost) block long warehouse. I don't think my GB wavlink router will reach that far. I read that some wifi cameras can function as repeaters, but I dont think my 6 Dlink cameras (I bought 6 used DCS-932 wifi cameras for $5 a piece)...
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