RN102 write speed is extremely slow - what's the problem?

LarryLeschCons wrote:

I'm not sure whether this should be a new post, but I do seem to have a similar issue. My customer with a RN102 and newest 6.2.2 firmware update is experiencing very slow data transfer speeds over the network. When moving significant blocks of data, write speeds to the NAS vary between 10 to 100 times slower than writing the same data to a shared location on a peer Windows machine. Delete operations can hang up for minutes to hours. Odd errors pop up along the lines of "The action can't be completed because the file is open in another program" when it is not. File share setup is pretty plain vanilla: SMB sharing, Anonymous access enabled. Anti-virus function on the NAS is enabled. Any ideas what could be going on and how to fix it?

NasTester (http://www.808.dk/?code-csharp-nas-performance) is a reasonable performance tester, and it makes it easy for other posters to compare what you are seeing with their results.

I would
(a) check the SMART stats on the disk

Run NASTester

(b) disable Jumbo frames if they are enabled
(c) disable antivirus
(d) create a test share with snapshots off and bitrot disabled.

Then run NASTester, and see how the speeds compare.

Antivirus will slow down writes, and snapshots/bitrot protection can also. Though it is easy to blame them, so doing some benchmarking is useful.