@Lousky 

That's correct Windows 10 doesn't support SMB1 anymore due to it being unsecure, if you Google there are ways round it but I wouldn't advise you do them tbh, at your own risk as they say when sightseeing a live volcano.

@Hannibal_Lack Thanks a lot for your answer, I googled and want to prevent adding SMB1 support to my laptop :-). Does VR600 have some kind of configuraiton or firmware update that enable SMB2 instead?

@Lousky 

Sorry to tell you this modem does not support SMBv2 so far. We do have plan to support SMBv2 and we are working on it.

Here is the solution for you to access the USB devices connected to the modem.

a)    If you do not want to use SMB 1.0 anymore, you can use FTP to easily access the USB memory on your TP-Link router using the Internet browser. Alternatively, you can also use the FTP protocol with e.g. Cyberduck, FileZilla or WinSCP access the memory.

b)    You may also continue using SMB1.0, please enable SMB 1.0 support on your Windows 10 computer follow these steps：

1. Enter sys in the search box of the Windows taskbar and then select "Control Panel".

2. In the upper right corner, under "Display", select "Category" ().

3. Click on "Programs" and then on "Programs and Features".

4. Click "Turn Windows features on or off".

5. In the Windows Features window, enable "Support for SMB 1.0 / CIFS File Sharing" and click "OK.

6. Click "Restart Now" to complete the installation.

Have a good day.

Do you have any update for us regarding SMBv2 support? This is really a crucial update that the powerful Archer VR600 model should support. Best regards