Orbi Wifi Android

Hi,

I believe this issue is Android to Orbi. Orbi is rejecting Android connections? It is effecting all devices, phones, tablets, vodafone TV. I try and wire as many devices as possible.

Overnight Orbi lost Wifi. Orbi SSID is showing up on Android devices but I get "Failed to Obtain IP Address". LAN is working. Wifi from Orbi router to Orbi Satellites on wifi is working. I can use wifi on my Windows 10 PC.

What I have checked:

1. Powered down whole network and rebooted one at a time waiting for each to load (Fibre Modem, Orbi Router, Satellite 1, Satellite 2, Switch, NAS, NAS, PC...
2. DHCP working on Orbi, range is correct 192.168.1.2 to 192.168.1.254
3. IPv6 is off
4. Guest Network is off
5. Changed WPS to from AES to TKIP
6. Changed android device name
7. Turned off Access control on Orbi and tried to connect on phone.
8. Checked Blacklisted devices on Orbi.
9. Updated Firmware on Orbi
10. Restarted phones, forget networks on phones, wiped Play store cache, set to aeroplane mode then back again. 

Ive not done a factory reset yet on Orbi yet this is my next action.

Any other ideas?

I appreciate your help in advance. Thank you

Clark