My BEFW11S4 Linksys router would restart itself once in awhile for the past couple months. I could not connect to it last week, so I checked the router and found the LEDs were lit up strangely. I suspected it wasn’t getting enough power. There was a foul odour emitting from the wall plug. I probed it with a multimeter and found that there was only 2.5V coming out of it.
I decided to take it apart and see what was wrong inside. There are no screws so the only way was to pry it apart. This is what I found inside! The smell of leaking capacitors was overwhelming. You can see all the capacitors inside still leaking away.