N300 Travel Router connection problems

Hi,

The extender was working fine, however suddenly i have noticed i can no longer see its wifi. Tried resetting it, but not sure even if it is getting reset. Cannot see the wifi or connect to i through wire. Cannot see the router login screen. Not really sure what has happened. 

Appreciate any pointers, or is this the expected quality of the product (was in use for around 6 months.

Regards

Faisal