PS4 not recognising pads

[LosOjos]

Having some weird issues with my PS4, thinking of returning it under warranty (has 3 weeks left on it!) but as it seems like a software issue, I'm wondering if anyone had this issue and has been solved by an update (been without Internet for 3 months so no updates in that time)

 

If my PS4 goes in to rest mode, or if any connected pad goes to sleep, then when I turn either the PS4 or the pad back on, none of my pads will connect to the PS4. The only way to solve it is to boot the PS4 in to safe mode with a pad connected via USB, after a restart the pads will then connect again without issue (until the next time something goes to sleep)

 

At the moment, I've just stopped using rest mode and set the pads to never turn off. It's not ideal and obviously if this is a sign the PS4 is dying, I'd like to replace it. However I've heard Sony's warranty repairs are god awful and cost a small fortune...