My NAS-R3 version is 4.37.DB0000000000.2939.

When I use a ftp(windows client) which is sometime disconnect and I didn't proceed.
(not system hang.smb,http are ok)
After reboot, all is ok. But some day after, it was appeared again.
I try that download log. But my explore didn't download log with error.

How can I do?