Hi WiFi Stealer, Thank you for your useful comments. TP-Link have been looking into this issue for me. Their R&D people seem to believe that they can increase the amount of files I'm seeing from...

I have noticed posts from a few years ago (2013) relating to problems not seeing all files via DLNA on a USB attached drive. I have recently purchased an Archer VR2800 (so not a cheap, basic one)...