Yea most of this stuff is on my bug list / to-do.
Wifi is very hit or miss with the current driver for the wifi chip...were trying to get a stable driver going from the vendor.
My test units work fine in a simple b/g network at home...but in my office with dozens of networks/mixed mode stations etc the wifi driver chokes and crashes all the time.
I've managed to have Apollo on WiFi on mixed 2.4/5 GHz (g+n / ac) network, same SSID for both of frequencies. I am not sure which frequency was Apollo using at that time, but it was stable. Now I switched to ethernet though.
It's a matter of polishing driver I am sure this hardware could work for months without any interruption on any WiFi providing signal is strong enough, fingers crossed for its development