I finally found the problem to the couple of iPhones in the house losing wifi connection, and it was nothing to do with the firmware in the end.
It just so happens that the two phones where brought second hand from same outlet about the same time I did the firmware update.
Not sure how I missed it in all my trying different things with the router, but I discovered that both iPhones had the same MAC address.
No wonder there were problems, and very strange thing to happen.
One phone has been sent back to the vendor to rectify the problem.
Sent from my iPad using Tapatalk
It just so happens that the two phones where brought second hand from same outlet about the same time I did the firmware update.
Not sure how I missed it in all my trying different things with the router, but I discovered that both iPhones had the same MAC address.
No wonder there were problems, and very strange thing to happen.
One phone has been sent back to the vendor to rectify the problem.
Sent from my iPad using Tapatalk