N300 WiFi Range Extender Stopped Working with iOS Devices...

Thank you very much for the reply.

Unfortunately, I'm well out of warranty on the Netgear router. It's over three-years old now. So I'm left to source info around here.

Are you suggesting that I change the channel on the Netgear extender? Or are you referring to the router/modem from the ISP?

I haven't updated the firmware myself, so unless the Netgear router can do so over the air, on its own, it's likely the same version as when I bought it. However, I've seen numerous threads around here, with people having similar connectivity issues as mine, and often the suggestions are to try going backwards with firmware. Honestly, it's rather confusing.

But assuming either changing the channel or updating the firmware might help, is there any idea why the device went from working perfectly, to essentially, not working well at all? Having not fiddled with any settings prior, it seems bizarre that it would develope these issues out of the blue.

Thank you again, for your help!