Arduino uno wifi

HI All
I need help from the Arduino forum
I have a Arduino Uno Wifi since I upgraded the firmware I cannot use the wifi of the uno wifi board
All I can access is the computer port of my laptop I can upload sketches no problem
If I upload the read mac address sketch and I click on the serial window I get the mac address
Is there anything I can try to restore the wifi of my board
I am using windows10 64bit before the firmware upgrade I was able to use UNO WIFI to program
Sketches
Or have I wiped anything by using the firmware upgrade
I am frustrated and all I want to know is have I changed the board from an Arduino Uno Wifi to an
Arduino Uno board by doing something stupid
Replies of any kind would be greatly appreciated
Thanks to all
oldvolt

oldvolt:
since I upgraded the firmware

Post a link to the instructions you followed to upgrade the firmware.

oldvolt:
I cannot use the wifi of the uno wifi board

Please explain exactly what you mean by "cannot use"