i suppose that is the modem signal strength which fluctuates with the actual environment

Wahroonga Farm wrote Connect to the MR3030 via a lan cable and simply read the wifi network security password. i agree, the latest firmware has the pre-encription key... this artical might be useful...

try some wireless settings like channel ,channel width. BTW, latest firmware worth trying

if possible, try update the modem firmware and see if helps. otherwise, it might be hardware problem

you may try reset the tplink to factory default, then it;s working in bridge mode, then you can configure the apple one as the general wireless router and put in your PPPoE account. the premise is...

i think it;s quite normal, wifi is still sending signal even no devices connected. no worries.....