i know this post is old, but i recently bought a used RV042 router that developed the whistle of death and intermittent operation. i checked the
power brick that came with it and was getting 16v instead of 12. i put a new 12v on the unit and it still whistled, so i replaced the 3 caps you indicated with identical ones that i harvested out of a power supply and now it's working perfect. i ...