HELP: HD movies stuttering when playing from ReadyNAS Pro ??

I have the same problem when streaming to my laptop.
I would like to mention another issue I've noticed when streaming HD video from my NAS to my PS3. The video will stutter if I try to transfer data from my laptop to the NAS while streaming video to my PS3.
The ReadyNAS Pro should have no problem with this. I have NAS Monitor installed, but I'm not sure what I should be looking for to know if the NAS is the issue here.

I have all CAT6a STP cables.
2Gbps teaming from the NAS to a Netgear GS108T switch.
1Gbps port on the PS3 which is connected to the GS108T.
1Gbps port on my laptop which is also connected to the GS108T.

Any help would be much appreciated. Thanks guys.

Sorry to say this, but it is a known problem.

http://www.readynas.com/forum/viewtopic.php?f=21&t=44760
http://www.readynas.com/forum/viewtopic.php?f=21&t=45133

They both have a potential fix.

solo8788 wrote:
Sorry to say this, but it is a known problem. http://www.readynas.com/forum/viewtopic.php?f=21&t=44760 http://www.readynas.com/forum/viewtopic.php?f=21&t=45133 They both have a potential fix.

Thank You for pointing to the other two entries.
I changed the speed of the (Realtek) NIC at the HTPC from 1Gb down to 100mbit - but no change. Same stuttering, problem persists. No change at all, except that the movie starts significantly slower...and then stutters same way as before... :(

Did I miss anything? Please help... :shock:

Thanks, Jan

You should rule out the router/switch, have you tried a direct connection?

http://www.readynas.com/forum/viewtopic.php?f=21&t=35583

solo8788 wrote:
You should rule out the router/switch, have you tried a direct connection? http://www.readynas.com/forum/viewtopic.php?f=21&t=35583

Thank You. May be I did not get the point...

I have a Netgear unmanaged Gbit switch, which is connected to the HTPC (living room) and the ReadyNAS (other room). Where do I "rule out" the switch? ...another cable is not possible as I can not put another cable throughout the rooms...

Please advise, thanks, JAN

Temporarily move the NAS to your living room and directly connect the HTPC to the NAS with a single ethernet cable - ethernet port to ethernet port - no switch at all. Instructions here.

If you can then stream without stuttering, you have diagnosed that the issue is somehow network related - first suspect being the switch

OK, thank you.

Will give it a try next days and keep you posted

Jan

OK, finally worked it out, unfortunatly the problem is still there.

I eliminated the switch by setting up the direct connection. SPHARDY, thank you very much for pointing to the instructions...

Even when directly connected, the HD video stutters...but not when played from local harddrive. The HTPC is an Intel i5, 8GB memory running 64bit W7 on a brand new ASUS board, which includes a Realtek Gbit NIC. It should be able to play HD movies like hell...

I am somewhat frustrated. HD movies playing fine from local drives, but stuttering from network drives. Regular DVD movies playing fine from local AND network drives. Both using same media player, the W7 built in MSFT mediaplayer. Codecs can not be an issues, otherwise the local stored HD movies would not play fine. Regardless if HD or DVD, CPU consumption never goes over 15-17%, memory is around 1.5GB...so the system is not very busy at all.

Anyone any tips/hints? ...can it be that the W7 firewall is blocking network traffic somewhat/somehow? I am using MS Security Essentials for virus protection... So, i deactivated the firewall and viruus protection. No change - is there anything which I may missed there? Or any others?

...PLEEEAAASE HEEELP :oops: :oops: :oops:

Can you try something:

Stream an HD movie from the NAS to your PC - while it is playing (& stuttering) transfer another file or files to/from the NAS (anything large will do) and see if it has an impact on the movie playback

If the quality of playback IMPROVES - then have a read here: viewtopic.php?f=21&t=44713

sphardy, thank you for your further support... :D

If i copy another larger file from NAS to HTPC stuttering gets much (!) worse....

I did read the thread you posted anyway and exchanged the Realtek NIC driver with the Microsoft NIC driver shipped with W7. I deleted the Realtek one, restarted the system and W7 installed a Microsoft NIC driver dated Feb 2008. (the thread was talking about a MSFT driver dated 2009...anyway..)

This MSFT driver makes that the movies running smoothly - but only if you do not press fastforward (FF), next chapter or others. If you let the move play (without touching) the movie plays. This is definetly some progress into the right direction :idea:

Downturn is, if I touch next chapter, it goes to next chapter and then the movie stutters again. Not as worse as before changing the NIC driver, but in a way that you can not watch the movie. Strange thing is that if i press stop, wait a few sconds, the movie plays a few seconds smoothly and then stutters again. Appears if the NAS and the HTPC getting out of sync???

While playing (smoothly) the movie the W7 task manager showing a 3.9% - 4.2% network consumption. After pressing FF or others the movie stutters and the network traffic is going down to 2.8-3.3% and not getting back to the prior level...

FYI, I checked for the latest Realtek driver (the preinstalled one was outdated, may be the vendor used and image with an outdated driver), installed it but this did not help either.

I tried jumbo frames and so on...no change...Any idea?

/Jan