Router not accepting cables

[Madoublet98]

My internet went down yesterday. Today i got it back working on the main computer. However, now on my router, the only lighs are for the port that the cable going to this computer is plugged into, not the other 2 ports that have cables in them. therefore, i can only get internet on this computer now. what can i do so the router accepts my other 2 cables?

 

[edfair]

Probably would help if you gave the details of what you have.

First step is a power cycle of the affected stuff, since it doesn't seem to be a threat to do it.

Ed Fair
Give the wrong symptoms, get the wrong solutions.