I am coming to you live from a Wi-Fi network called ‘House5GHz’ (password 12345678 if you wanna jump in as well). Sorry, took a bit longer than I expected, I had to dangle an RB1100 from an Ethernet cable (I wish one day I could be as strong as that Ethernet cable). Anyway, here’s some quick and dirty speedtesting action:
(this one is pretty far away from the router, as far away as I can go without leaving the house)
(this one is right in front of the router)
Unless @webequipped made the common mistake of putting the router in a concrete box with walls 6 feet thick, I daresay they should be able to access the Internet at decent speeds. Maybe the problem is testing methodology, or the configuration of the CRS. But it is, in all likelihood, not with the ax3’s configuration.