Hmm, that is not what it says:
They say, expect a response in 3 weeks, not “it takes us three weeks to respond”
One of the reasons probably is to prevent users asking for updates all the time (which causes the response times to grow longer and longer).
Of course they prioritize the incoming issues.
Yep, it’s really odd. Please report this bug. Be aware Homey’s wifi implementation has been very picky very since the first model from 2016 
. In other words, don’t expect anything, or just buy the ethernet dongle (yeah finally there’s ethernet available for Homey).
Try to use 2.4GHz only. I don’t think the speed advantage of 5GHz wifi is needed at all.
And after connecting, force Homey to use only one of the AP’s, by band steering, MAC filtering or transmit power settings
Also reserve an IP address for Homey @ DHCP server.
