@Gabriel-TP Hi there, You are right about the firmware number, but i can add: rel 7032ln at the end of what you mentioned. I can't access the NVR now, as there's no drive in it, but the above info...

@Gabriel-TP Hi there, Thanks for taking the time to reply.... Ok... The 1st HD was a WD Purple 4tb The 2nd HD is a WD Purple 8tb I chose them both having emailed TPLINK and with their approval. I...

I've now had 2x new WD purple HDs fail in my NVR unit. Each time the NVR is working perfectly and then it fails to 'see' the HD. There's nothing I can do to solve this via the app or desktop...