Nothing is more annoying than an extender that suddenly refuses to connect with a phone, especially when everything else in the house seems fine. Netgear EX6100 is a reliable and promising hardware but iPhone faces issue connecting with it. It just spins, displays incorrect password or if it connects then connection drops. https://mywi-fiext.net/netgear-ex6100-extender-wont-connect-to-wifi-with-iphone/