@DevonDave Well, if you have an Archer C2300 V1.x EU version, then there is a firmware update available that claims to add SMBv2 support. In case there is no link to it on TP-Link's UK website, then...

@DevonDave OK. What about the XX inside the brackets? I would expect there should be something like EU, US, UK ... printed on the sticker somewhere, which determines what region's firmware you can...

@BruceCH I guess the sole reliable way to find out would be to take an empty, preferably surplus/discarded, USB disk (can be anything like HDD, Flash drive, SD card in USB SD card reader), convert...

@DevonDave Since the UK still fell under EU law up until a month ago I am pretty sure that your C2300 is a EU version. Can you grab your C2300, flip it upside down and then have a look at the white...

@DevonDave What country or region is your C2300 router from? I see that for the US and the EU versions of the C2300 V1 there are firmware updates available to add SMBv2 support....

@Gardening_Diva I think the issue here is that the OneMesh feature has been added to the product at a later time and TP-Link don't seem to be very good at updating the manuals for their products...