I connected MacBook Pro with Raspberrypi3 B+ by Lan and SSH because I have no keyboard and monitor for PI3.
OS : raspbian-stretch-lite
Model : Raspberry Pi3 B+
pi@raspberrypi:~ $ iwconfig wlan0 IEEE 802.11 ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=31 dBm Retry short limit:7 RTS thr:off Fragment thr:off Power Management:on lo no wireless extensions. eth0 no wireless extensions.
There are many Access Points but
No scan results
sudo iwlist wlan0 scan wlan0 No scan results
What should I do?