Hello, are there any settings on the HG659 that need to be changed so the Chromecst can connect to the wifi?
By settings i mean is the AP isolation disabled or enabled? Possible to change in settings myself?
Nope, shouldn't need to change anything. The Chromecast should attach to the wifi like any other device. Search for the SSID name and join the network
there is not really any setting that would cause that on the hg659.
Perhaps factory reset the hg659 to see if it comes right.