Hie everyone,
i upgrade my computer from 14.04 to Lubuntu 16.04 and I have the same problem with my Ralink mt7601u as Ralink MT7601U (148f:7601) Wi-Fi adapter not working on Ubuntu 16.04, but I don't want reinstall computer.
iwconfig:
pc-rodina@pcrodina:~$ iwconfig
ra0       Ralink STA  
      Power Management:on
lo        no wireless extensions.
eth0      no wireless extensions.
I type ifconfig ra0 up and my iwconfig changed, but WiFi is not working:
pc-rodina@pcrodina:~$ iwconfig
ra0       Ralink STA  ESSID:""  Nickname:"MT7601STA"
          Mode:Auto  Frequency=2.412 GHz  Access Point: Not-Associated   
          Bit Rate:1 Mb/s   
          RTS thr:off   Fragment thr:off
          Link Quality=10/100  Signal level:0 dBm  Noise level:0 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
lo        no wireless extensions.
eth0      no wireless extensions.
rfkill list all && sudo modprobe mt7601u && dmesg | grep mt76:
pc-rodina@pcrodina:~$ rfkill list all && sudo modprobe mt7601u &&      dmesg | grep mt76
[   15.414227] mt7601Usta: module verification failed: signature   and/or required key missing - tainting kernel
[  325.266072] usbcore: registered new interface driver mt7601u
Thanks all for help.
 
     
    