I don't know if you are connecting to the wifi with anything other than your laptop, but if it is just the laptop, and both routers seem to have gone screwy at the same time, I would tend to think it's something to do with the laptop's wifi, not the routers.
If this is the case, perhaps see if you can reinstall the drivers for the wifi, or maybe even an updated driver. I know there have been some W10 updates just recently, and we all know they can surely screw things up.
WOO HOO!!!!!