Nighthawk AC1900 EX 7000 wifi booster - Connection Issues

Ok, I still had some connection issues after the firmware upgrade, I decided to do bit more digging and deceided to see if my router with the issue. Yes, it was! I have a Hintron Coda 4589(wavecable) and I guess they are quriky when it comes to extnenders. I saw a few sights where people were complaining about this same issue with there Hintron router (where the extender was not staying connected) They found settings that worked for my router, It was in the wireless security. The settings needed to be on Auto for WPA-PSK or WPA2-PSK. This seems to have fixed the connection with my router and my devices that connected to the extender. Thank you netgear and community, just takes a bit of investigation. I do want to get a third party router any suggestions would be great.