I see that your TNAS is F2-221 and TOS was TOS 4.2.40 before you use TOS5.
Please confirm if you are facing such a problem, perhaps you can find a solution within it:
viewtopic.php?t=4912
Please confirm if you are facing such a problem, perhaps you can find a solution within it:
viewtopic.php?t=4912
Statistics: Posted by TMzethar — 19 minutes ago