My AP is a Hap AC2.
I have a problem with Windows laptops that can’t connect to 5Ghz band. Android phones however have no problem.
A snippet from the (long) error report from Windows:
Gedetailleerde hoofdoorzaak:
802.11-verbinding is mislukt door statuscode 18: de koppeling is geweigerd omdat het aanvragende station niet alle gegevenssnelheden in de parameter BSSBasicRateSet ondersteunt
Sorry, it’s in dutch. It says that there’s something wrong with the basic rates.
What are the correct settings? At first it was ‘default’. According to inssider that meant 6mbps. I’ve tried to add 12 and 24, like I saw on another AP, but that didn’t help.