I've had my extender for about 2 years... no issues. 
 

Last night I didn't appear to have any internet connection so reset my router as usual, which didn't work. 
 

When I'm near my router the internet connection is fine, therefore the problem is the extender. 
 

the extender is connected to the host with no issues, all lights are full and when connected my WiFi bar is full... however I have no internet connection?? 
 

it appears to all be working but not emitting any internet connection???