I have not been able to get my Debian stretch 9.3 to connect to corporate APs.
I am using wpa_supplicant for networking. The laptop can connect by tethering to my cell phone. I have tried connecting to secured networks using a passphrase and to open networks. Below are two examples, the first being an unsuccessful attempt to an open network (Holiday Inn). I tried both the SSIDs on different runs with no success. The second example is the successful connection to a cell phone. The results are 'significantly' different, and I cannot figure out why. I would appreciate any suggestions to help move past this. 1st: +++++++++++++++++++++++++++++++++++++++++++++++ root@Relaise:/etc/network# cat interfaces.r02IHG # interface.r02IHG From interfaces.r02 # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback network interface auto lo wlp2s0 iface lo inet loopback # The wireless network interface iface wlp2s0 inet dhcp #wireless-ssid "IHGConnect" #ssid "IHGConnect" ssid "HI Express - Jack" key-mgmt NONE # Wired network interface (through USB) auto enx0050b6c43d42 allow-hotplug enx0050b6c43d42 iface enx0050b6c43d42 inet dhcp ____________________________________________________________________ root@Relaise:/etc/network# ifup --verbose wlp2s0 ifup: configuring interface wlp2s0=wlp2s0 (inet) /bin/run-parts --exit-on-error --verbose /etc/network/if-pre-up.d run-parts: executing /etc/network/if-pre-up.d/bridge run-parts: executing /etc/network/if-pre-up.d/ifenslave + [ inet = meta ] + IF_BOND_SLAVES= + [ ] + [ ] + [ -z ] + exit run-parts: executing /etc/network/if-pre-up.d/wireless-tools run-parts: executing /etc/network/if-pre-up.d/wpasupplicant /sbin/dhclient -4 -v -pf /run/dhclient.wlp2s0.pid -lf /var/lib/dhcp/dhclient.wlp2s0.leases -I -df /var/lib/dhcp/dhclient6.wlp2s0.leases wlp2s0 Internet Systems Consortium DHCP Client 4.3.5 Copyright 2004-2016 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/wlp2s0/94:65:9c:38:bf:30 Sending on LPF/wlp2s0/94:65:9c:38:bf:30 Sending on Socket/fallback DHCPDISCOVER on wlp2s0 to 255.255.255.255 port 67 interval 4 DHCPDISCOVER on wlp2s0 to 255.255.255.255 port 67 interval 9 DHCPDISCOVER on wlp2s0 to 255.255.255.255 port 67 interval 7 DHCPDISCOVER on wlp2s0 to 255.255.255.255 port 67 interval 10 DHCPDISCOVER on wlp2s0 to 255.255.255.255 port 67 interval 7 DHCPDISCOVER on wlp2s0 to 255.255.255.255 port 67 interval 13 DHCPDISCOVER on wlp2s0 to 255.255.255.255 port 67 interval 11 No DHCPOFFERS received. No working leases in persistent database - sleeping. /bin/run-parts --exit-on-error --verbose /etc/network/if-up.d run-parts: executing /etc/network/if-up.d/avahi-autoipd run-parts: executing /etc/network/if-up.d/avahi-daemon run-parts: executing /etc/network/if-up.d/ifenslave + [ inet = meta ] + [ ] run-parts: executing /etc/network/if-up.d/upstart run-parts: executing /etc/network/if-up.d/wpasupplicant 2nd: ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ # Interfaces.r02PebbleAP from .r02VER # This file describes the network interfaces available on your system # and how to activate them. For more information, see interfaces(5). source /etc/network/interfaces.d/* # The loopback network interface auto lo wlp2s0 iface lo inet loopback # The wireless network interface iface wlp2s0 inet dhcp wpa-ssid "PebbleAP" wpa-psk xxx # Wired network interface (through USB) auto enx0050b6c43d42 allow-hotplug enx0050b6c43d42 iface enx0050b6c43d42 inet dhcp root@Relaise:/etc/network# ________________________________________________ root@Relaise:/etc/network# ifup wlp2s0 Internet Systems Consortium DHCP Client 4.3.5 Copyright 2004-2016 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/wlp2s0/94:65:9c:38:bf:30 Sending on LPF/wlp2s0/94:65:9c:38:bf:30 Sending on Socket/fallback DHCPDISCOVER on wlp2s0 to 255.255.255.255 port 67 interval 8 DHCPDISCOVER on wlp2s0 to 255.255.255.255 port 67 interval 8 DHCPREQUEST of 192.168.43.247 on wlp2s0 to 255.255.255.255 port 67 DHCPOFFER of 192.168.43.247 from 192.168.43.206 DHCPACK of 192.168.43.247 from 192.168.43.206 bound to 192.168.43.247 -- renewal in 1527 seconds. Ray