Beagle Bone Black after login via USB using PuTTY then disconnected from the USB port and wont allow to log in agian
Recently I am using 8.6 IoT Debian image with 4.4.113-ti-r147 kernel configuration.

Every time when I log in the BBB via USB port, it does allow me to log in but after 10s I was disconnected from the BBB console port via USB. I still able to log in the BBB from the Wifi or Eth0 interface. Does anyone know why this could happen.

Try using the network login and have a look at the log files.

Hi,
Before I plug the ethernet cable, I was performing the command dmesg and I found this:

[ 44.407262] gpio-of-helper ocp:cape-universal: Allocated GPIO id=0
[ 44.407451] gpio-of-helper ocp:cape-universal: Allocated GPIO id=1
[ 44.407628] gpio-of-helper ocp:cape-universal: Allocated GPIO id=2
[ 44.407802] gpio-of-helper ocp:cape-universal: Allocated GPIO id=3
[ 44.407965] gpio-of-helper ocp:cape-universal: Allocated GPIO id=4
[ 44.408130] gpio-of-helper ocp:cape-universal: Allocated GPIO id=5
[ 44.408292] gpio-of-helper ocp:cape-universal: Allocated GPIO id=6
[ 44.408457] gpio-of-helper ocp:cape-universal: Allocated GPIO id=7
[ 44.408623] gpio-of-helper ocp:cape-universal: Allocated GPIO id=8
[ 44.408783] gpio-of-helper ocp:cape-universal: Allocated GPIO id=9
[ 44.408951] gpio-of-helper ocp:cape-universal: Allocated GPIO id=10
[ 44.409111] gpio-of-helper ocp:cape-universal: Allocated GPIO id=11
[ 44.409272] gpio-of-helper ocp:cape-universal: Allocated GPIO id=12
[ 44.409445] gpio-of-helper ocp:cape-universal: Allocated GPIO id=13
[ 44.409615] gpio-of-helper ocp:cape-universal: Allocated GPIO id=14
[ 44.409776] gpio-of-helper ocp:cape-universal: Allocated GPIO id=15
[ 44.409944] gpio-of-helper ocp:cape-universal: Allocated GPIO id=16
[ 44.410091] gpio-of-helper ocp:cape-universal: Allocated GPIO id=17
[ 44.434537] gpio-of-helper ocp:cape-universal: Allocated GPIO id=18
[ 44.434597] gpio-of-helper ocp:cape-universal: Failed to request gpio 'P8_26'
[ 44.442011] gpio-of-helper ocp:cape-universal: Failed to create gpio entry

I think there is something wrong with the cape manager

Also after I plug the eth0 cable and replug it back it says:
Dec 9 21:09:31 beaglebone connmand[1851]: usb0 {add} address 192.168.7.2/30 label usb0 family 2
Dec 9 21:09:31 beaglebone connmand[1851]: usb0 {add} route 192.168.7.0 gw 0.0.0.0 scope 253 <LINK>
Dec 9 21:09:31 beaglebone connmand[1851]: usb0 {add} route fe80:: gw :: scope 0 <UNIVERSE>
Dec 9 21:09:31 beaglebone connmand[1851]: usb0 {update} flags 69699 <UP,RUNNING,LOWER_UP>
Dec 9 21:09:31 beaglebone connmand[1851]: usb0 {newlink} index 3 address 382:69:57D:16 mtu 1500
Dec 9 21:09:31 beaglebone connmand[1851]: usb0 {newlink} index 3 operstate 6 <UP>
Dec 9 21:09:31 beaglebone connmand[1851]: Ignoring interface usb0 (filtered)
Dec 9 21:09:31 beaglebone udhcpd[1947]: udhcpd (v1.22.1) started
Dec 9 21:09:31 beaglebone udhcpd[1947]: can't open '/var/lib/misc/udhcpd.leases': No such file or directory
Dec 9 21:09:31 beaglebone systemd[1]: Started Serial Getty on ttyGS0.
Dec 9 21:09:31 beaglebone sh[772]: Loading cape-universaln overlay


usb0 is the one I use to log in the BBB via USB port.

also see the system log regarding the usb0 which is 192.168.7.2:

Feb 22 18:34:46 beaglebone connmand[875]: usb0 {create} index 3 type 1 <ETHER>
Feb 22 18:34:46 beaglebone connmand[875]: usb0 {update} flags 4098 <DOWN>
Feb 22 18:34:46 beaglebone kernel: [ 15.408599] usb0: HOST MAC 38:d2:69:57:dd:15
Feb 22 18:34:46 beaglebone kernel: [ 15.409297] usb0: MAC 38:d2:69:57:dd:16
Feb 22 18:34:46 beaglebone connmand[875]: usb0 {newlink} index 3 address 00:00:00:00:00:00 mtu 1500
Feb 22 18:34:46 beaglebone connmand[875]: usb0 {newlink} index 3 operstate 2 <DOWN>
Feb 22 18:34:46 beaglebone connmand[875]: Ignoring interface usb0 (filtered)
Feb 22 18:34:46 beaglebone connmand[875]: Adding interface usb0 [ gadget ]
Feb 22 18:34:46 beaglebone connmand[875]: usb0 {newlink} index 3 address 382:69:57D:16 mtu 1500
Feb 22 18:34:46 beaglebone connmand[875]: usb0 {newlink} index 3 operstate 2 <DOWN>
Feb 22 18:34:46 beaglebone connmand[875]: Ignoring interface usb0 (filtered)
Feb 22 18:34:46 beaglebone udhcpd[985]: is interface usb0 up and configured?: Cannot assign requested address
Feb 22 18:34:47 beaglebone connmand[875]: usb0 {add} address 192.168.7.2/24 label usb0 family 2
Feb 22 18:34:47 beaglebone connmand[875]: usb0 {update} flags 69635 <UP,LOWER_UP>
Feb 22 18:34:47 beaglebone connmand[875]: usb0 {newlink} index 3 address 382:69:57D:16 mtu 1500
Feb 22 18:34:47 beaglebone connmand[875]: usb0 {newlink} index 3 operstate 2 <DOWN>
Feb 22 18:34:47 beaglebone connmand[875]: Ignoring interface usb0 (filtered)
Feb 22 18:34:47 beaglebone avahi-daemon[769]: Joining mDNS multicast group on interface usb0.IPv4 with address 192.168.7.2.
Feb 22 18:34:47 beaglebone connmand[875]: usb0 {add} route 192.168.7.0 gw 0.0.0.0 scope 253 <LINK>
Feb 22 18:34:47 beaglebone avahi-daemon[769]: New relevant interface usb0.IPv4 for mDNS.
Feb 22 18:34:47 beaglebone avahi-daemon[769]: Registering new address record for 192.168.7.2 on usb0.IPv4.
Feb 22 18:34:47 beaglebone connmand[875]: usb0 {add} route fe80:: gw :: scope 0 <UNIVERSE>
Feb 22 18:34:47 beaglebone avahi-daemon[769]: Withdrawing address record for 192.168.7.2 on usb0.
Feb 22 18:34:47 beaglebone avahi-daemon[769]: Leaving mDNS multicast group on interface usb0.IPv4 with address 192.168.7.2.
Feb 22 18:34:47 beaglebone connmand[875]: usb0 {del} address 192.168.7.2/24 label usb0
Feb 22 18:34:47 beaglebone connmand[875]: usb0 {del} route 192.168.7.0 gw 0.0.0.0 scope 253 <LINK>
Feb 22 18:34:47 beaglebone avahi-daemon[769]: Interface usb0.IPv4 no longer relevant for mDNS.
Feb 22 18:34:47 beaglebone avahi-daemon[769]: Joining mDNS multicast group on interface usb0.IPv4 with address 192.168.7.2.
Feb 22 18:34:47 beaglebone avahi-daemon[769]: New relevant interface usb0.IPv4 for mDNS.
Feb 22 18:34:47 beaglebone avahi-daemon[769]: Registering new address record for 192.168.7.2 on usb0.IPv4.
Feb 22 18:34:47 beaglebone connmand[875]: usb0 {add} address 192.168.7.2/30 label usb0 family 2
Feb 22 18:34:47 beaglebone connmand[875]: usb0 {add} route 192.168.7.0 gw 0.0.0.0 scope 253 <LINK>
Feb 22 18:34:47 beaglebone connmand[875]: usb0 {update} flags 69699 <UP,RUNNING,LOWER_UP>
Feb 22 18:34:47 beaglebone connmand[875]: usb0 {newlink} index 3 address 382:69:57D:16 mtu 1500
Feb 22 18:34:47 beaglebone connmand[875]: usb0 {newlink} index 3 operstate 6 <UP>
Feb 22 18:34:47 beaglebone connmand[875]: Ignoring interface usb0 (filtered)
Feb 22 18:34:49 beaglebone avahi-daemon[769]: Joining mDNS multicast group on interface usb0.IPv6 with address fe80::3ad2:69ff:fe57:dd16.
Feb 22 18:34:49 beaglebone avahi-daemon[769]: New relevant interface usb0.IPv6 for mDNS.
Feb 22 18:34:49 beaglebone avahi-daemon[769]: Registering new address record for fe80::3ad2:69ff:fe57:dd16 on usb0.*.
root@beaglebone:~# is interface usb0 up and configured?: Cannot assign requested address

OK, so you have a USB networking adapter? Is it wireless? Which make and model?