I have had my Fvp 4000t replaced now 3 times by humax.
If everyone who has a problem would contact customer services and ask for your faulty unit to be replaced this may make them do something about all the issues with this box.
Just putting up with it is wrong. Make a stand and force them to make it better.
Yes, I am also now on my third unit, due to corrupted recordings and recordings not starting on time (whereas a Humax PVR9300 running on the same aerial is working fine.