[Problem] Fritzbox 7320 just blink once and then no light

[aprofromindia]

I have a Fritzbox 7320, and been working fine for 8 years. Suddenly today I noticed when I power it on, there is no light other than an all light blink for the first second as I power it on. After that none of the lights are on.

Is this a known problem ? Is the 5V power adapter, the culprit?

 

[erik]

12 V power adapter I think. Maybe, try another adapter to verify.

 

[kleinkariert]

Please look at the bottom of your 7320. There must be something like
"Nur mit diesem Netzteil verwenden:
12V === 1A 12VA"
at the lower left?
If you use a 5V power source from a FRITZ!Box 7312, it will not work and I think the plug will not fit at all.