cannot connect to RE450 range extenders with tether app
I have two RE450 TP Link range extenders connected to my network. I installed the Tether app on my iphone. I could see both extenders. When I clicked on one, it asked me to login. It did not like the pw I typed in. I tried a different pw on the other one. Suddenly they both disappeared from the tether app. I have deleted the app and re-installed it and cannot find the extenders. The message says there are no devices on the network. I have logged into my router and can see both devices in the DHCP table. What do I need to do to be able to access the devices with Tether. Network is 2.4 GHz.