iphones won't connect to WAX610

I have just installed a WAX610 at my golf club as part of a wider wifi network. All units within the club are connected to a base router via LAN and all use the same SSID and password so that users can move between areas seamlessly.

The WAX610 was part of an upgrade along with a WAX210 and an AX1800 essentials in other areas. All phones including iphones connect to the WAx210 and AX1800 essentials, but not to the WAX610.

Android devices connect without a problem yet iphones have to be re-connected every time a user turns up at the club. I thought it was an iphone problem with MAC addresses so switched off Private addressing on the iphone, but that hasn't worked. The MAC address of the main user is listed as an available station under guest in MAC ACL now but it was before the person moved out of range of WAX610.

Feeling very frustrated.