First of all, for an investigation you and we need facts. So versions of your OS and some more info about your config would be great.
I propose read request where users solved with success their WIFI problem. Here an example:
To debug you need the Terminal (linux & OSx) and commands as
traceroute to see if device is online and over which device you are connected. Windows users use
On a mobile device you install best a WIFI scanner and check the Chanel settings. If needed deactivate on omega AP mode and just use the fix connection over you Internet box. Important is that you use fix channel settings instead of auto. So you have control over the channels and you can avoid wifi interference with other devices.
You should not compare pears with apples ... omega and raspberry are not in the same class of quality.
@onion sorry to say that ... raspberrypi.org is a much bigger community and also playing better the FOSS rules.