Could be just a power supply issue. They've known to be temperamental and can fail at a moments notice. Before throwing your solo away or spending too much time trying to fix things tinkering with your router setup, try changing the power supply. It's the most inexpensive fix and even though your power light is on, doesn't mean it's doing its job right by providing enough power to make the box work. How many times have you changed your power supply in 6 -7 years?