I've installed firmware version 3.3.3 (final) from the draytek support site:

http://www.draytek.com/user/SupportDownloadsDetail.php?action=Load&MID=12&ID=305#PdInfo

Tried using the USB Disk option to save the SysLog which doesn't work when I have a USB disk connected and the router says it can see the disk.

Worse still, when I try to create a folder on the USB disk via the router's File Explorer option it causes the router to lock then reboot, or sometimes just lock and not reboot at all.

Anyone else having this problem?

Is the USB stick formatted with NTFS?

The Vigor2820 USB storage only supports FAT / FAT32

It's formatted to FAT32.

Is the USB device multi-functional? I have a USB stick that is also a bluetooth device and it doesn't pick it up, but it's fine with my other USB sticks.