I have this extender for almost 2 years now, I never change its place or anything, today it just stopped working all the LEDs are blinking and the signal LED is red , the network is working properly and nothing wrong with wifi signal I tried to reset the device and it keeps blinking, I can't find the device on the networks list on my phone or in tether app and it keeps making this noise like electricity spark . Any idea what is wrong and what to do??