WD HD TV LIVE stutter 1080p .mkv stream over NFS. bug in firmware?

Community Archives WD TV Live Streaming Firmware
1

Hallo there…

i have big problems streaming 1080p over NFS share, the movie plays about 20 sec, then begins to stutter and the sound is complety gone.

but when i select “media sever” and choose my NAS qnap ts-212 that runs twonky DLNA server. Its all good i can then stream 1080p movies.

is there a bug en the firmware(im running the newest but also had the same problem before i updatet) ?? 

other that have experienced the same problem ?

2

Are you wired or WiFi?

3

nope its wired.

when i stream it to my macbook pro (wireless) there is no problem, but my wd hd tv live that is wired on the same router as the nas it stutters.?

4

here is what it looks like:  http://www.youtube.com/watch?v=elFOXHX0tvg&feature=youtu.be

5

Seems to be a problem with incompatible NFS block size on the SMP (NFS client) compared to NFS server. Change your block size on the server to 8K. The default on most Linux servers is 16K.

6

I think it’s more to do with the switch buffer capacity.  If the NFS block size is larger than switch port buffers, it causes a lot of retransmission and slowdowns.  I have my block size set to 64K and it still works, but my switches have pretty fat buffers.

one way to test this is to force your NFS server to 100 meg connection instead of gig.  In that way, the switch buffers aren’t as heavily taxed.

7

Looks like you may have a dedicated switch for the SMP. I am using one of the switches/ports on the router and increasing the buffer size will cause latency issues