Unstable wifi, almost no connectivity

I got a CM4 lite. Wifi does not work and shows almost no connectivity even being 2m from the AP. I tried installing the antenna to the two ports in the console and none of them works better than the other

I work with multiple raspberry pi, esp32, … and none of them has had this problem. I need to try 20 times to just load google.com

Anybody else has this problem or is this a faulty unit/antenna?

For CM4 Lite the antenna connects to the CM4 not the baseboard as it does for other cores.

There are reports that the CM4 lite defaults to using the internal intenna instead of the external. Select it by adding dtparam=ant2 to your /boot/config.txt and rebooting:

sudo sh -c 'echo "dtparam=ant2" >> /boot/config.txt'

Remember to follow the build instructions, the antenna wire connects to the CM4 module and not to the uConsole main board.

that said, I use an external USB WiFi adapter for mine. A cheap one with a big rubber antenna ( RT5370 Chip). I do this because my reception at my house is so poor with all devices, not just the uConsole.

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Yeah tried both with identical bad results

Yes, also tried that and it seemed to work even worse performing that edition. Tried two times :confused:

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It looks like the original FPC 2.4G/5G antenna for uConsole is not that powerful on my side, and I have to replace it due to poor signal. Here is a picture of my new PCB antenna.

My situation is not that bad as yours, and I can still maintain a stable and fast enough connection within 3m from the AP. The new antenna greatly improve the connectivity.

Where did you buy that one?
But it’s so strange: exactly in the same place where I get no connectivity with the uConsole (also tried with the back lid open), I can perfectly connect with an ESP8266 or an RPI4, both of them with no antenna.

I bought the antenna on Taobao. It’s 49mm long and 8mm wide, 0.8mm thick, advertised having 5dB gain. I think you’ll find similar ones on aliexpress. I chose this one just because it has a suitable size.

BTW my esp based devices with on board antenna are also working great in the same environment.

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The stock antenna is kinda crap. Almost wondering if some of them have bad solder points.

There is another thread where some of us tried alternate antennas


Went this route and ordered a wifi antena. Will report with the results