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This is not "your router/AP wifi config", this is normal wifi client access configuration. 
 
Edit with vi  and change SSID to your wifi network SSID 
Also change password. 
Reboot (normal Ubuntu network restart does not work, it has some issues with servicectl arguments & etc). 
After reboot should be OK, also 5Ghz is working. 
 
But You can setup your addition home wifi/AP router with this SSID and pasword if You do not want to change anything inside image/shell   |   
 
 
 
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