LEDE router, problems with devices connected to Unifi AP AC PRO.

I have a router running LEDE and I recently added a wifi AP (Unifi AP AC PRO). The devices connected to the AP don't have internet (at least 80% of the time). I changed a setting on the LEDE DHCP setup to ra_default 1 (I can't find the link the page where I found this) and now my linux laptop seems to work, but my iPhone still doesn't. All ethernet devices work fine.