Beaglebone Black Internet Connection over USB PROBLEM

I had the internet connection over USB and next day I lost that and I’m almost trying for a week to get it again.

Everytime, I used to do that to get internet connection.

`

root@beaglebone:route add default gw 192.168.7.1

root@beaglebone:/etc/network# route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
default 192.168.7.1 0.0.0.0 UG 0 0 0 usb0
192.168.6.0 0.0.0.0 255.255.255.252 U 0 0 0 usb1
192.168.7.0 0.0.0.0 255.255.255.252 U 0 0 0 usb0

`

and After that

nano /etc/resolv.conf

nameserver 8.8.8.8

Ctrl+X ok and ping 8.8.8.8 and ping google.com
everything was Alright. But One cursed day , I am not able to ping 8.8.8.8 and google.com
I have tried almost everything on the İnternet and I have already done my internet share configurations on my computer too

Please HELP.