@Jakub-Ludwig I solved it by changing router mode from 802.11n only to 802.11b/g/n mixed.
Also you can play with wifi region especially if your channel on the router above 11.
Maybe changing channel width between 20mhz and 40mhz can also help.

Kind of support that.

It's not worth to buy for around $20 but also really hard to use without docks or any handmade board since there are only 2mm pins.
With shipping it becomes not so cheap and it makes O2 almost useless for most of possible applications.

Yes, O2 has many GPIO pins and it can be helpful if you plan to build some kind of robotic platform or automatic plant with bunch of sensors and controllers.
In the same time O2 consumes too much power for dumb MQTT sensor reader (and there's ESP8266 for that).
But since this board has not so much RAM it's impossible to run something like Home Assistant or so. In that case you will prefer RPi/C.H.I.P./etc.

Building custom linux distro also not so easy and only way is to stick with LEDE. Not a bad one but there is still some troubles with mt76 driver.

@Nilay-Desai Well, I don't know about the mt76 driver from onion firmware but the one in official LEDE builds can disable 11n by setting htmode 'NONE' in wifi-device section. Maybe this is default behavior of onion driver.
You can try to set htmode 'HT20' (or HT40 depending on your settings) and switch your router to 11n-only mode again.
If this won't work I've no idea why it happens.

@luz Hi. Tried to build image on Ubuntu 16.04 but make menuconfig behaves strange.
e.g. can't see cursor if I resize terminal.

Do you have such problems or you are using imagebuilder/edit config by hands?

@Fabian-Nydegger I'm sure that I didn't know about onion.* stuff in uci and it helps.
Thanks.

@Jakub-Ludwig I solved it by changing router mode from 802.11n only to 802.11b/g/n mixed.
Also you can play with wifi region especially if your channel on the router above 11.
Maybe changing channel width between 20mhz and 40mhz can also help.

Hi.

Since I'm primarily using ssh I don't need a web apps installed after setup.

I tried to remove onion-console-terminal and onion-console-base using opkg ( these ones was installed by setup wizard and probably can be safely removed because located in overlay and not in RO /rom partition).
But when I reboot it always shows in opkg as installed.

How can I completely remove all this web stuff?
Again, I'm not talking about apps that fried in readonly squashfs.

Well, guys. I've had the same trouble with wifi but I solved it by changing router mode from 802.11n only to 802.11b/g/n mixed.
That's f**king stupid because Omega 2 should support 802.11n according to the docs.