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HTPC 1080p mkv audio & video stuttering

post #1 of 16
Thread Starter 
I have a G540 cpu based htpc with 4gb of ram built from assassin's guide. I have my media server on a Gigabit LAN switch with my htpc. I am using shark's latest codec pack configured using assassin's guide playing through wmc and mb. I'm only getting stuttering for my 1080p mkv's and it happens as soon as I play the file and will continue through out the movie. The stuttering does not happen happen when I play DVD quality mkv's. I'm at my wits end with trying figure out what's causing the stuttering, please help.
post #2 of 16
Could be a network issue. Try to store one directly on the htpc and play it back to rule that out.
post #3 of 16
Thread Starter 
Yea def a network issue 1080p MKV played perfectly on locally on the htpc. Any suggestions on what to take a look at? I have flow control enabled, jumbo frames disabled, 1.Gbps full duplex on both the HTPC and the Media server. I did notice that Energy efficient ethernet is enabled on the media server along with green ethernet.
post #4 of 16
Try to disable Interrupt Moderation.
post #5 of 16
Thread Starter 
Quote:
Originally Posted by renethx View Post

Try to disable Interrupt Moderation.
Should I disable on the htpc or the media server?
post #6 of 16

What kind of speeds do you get when you transfer a file from the server to the htpc?

post #7 of 16
Quote:
Originally Posted by megrog2 View Post

Should I disable on the htpc or the media server?

Usually both.
post #8 of 16
Thread Starter 
Quote:
Originally Posted by renethx View Post

Usually both.
That was it! Disabling interrupt moderation stopped the stuttering. Thank you kindly.
Quote:
Originally Posted by Mrkazador View Post

What kind of speeds do you get when you transfer a file from the server to the htpc?
Server to the htpc I got 38Mb/s, htpc back to the server I'm only getting 11.6Mb/s for some reason.
post #9 of 16
Quote:
Originally Posted by megrog2 View Post

That was it! Disabling interrupt moderation stopped the stuttering. Thank you kindly.
Server to the htpc I got 38Mb/s, htpc back to the server I'm only getting 11.6Mb/s for some reason.

I would make sure that all of your cables are Cat5e or Cat6. I would also make sure that all your network switches, routers, etc are indeed gigabit.
post #10 of 16
Thread Starter 
Spoke to soon its still stuttering. I'll check the cables, I know my LAN switch is indeed Gigabit as I just purchased it to troubleshoot the stuttering.
post #11 of 16
30 Mb/s on wired LAN ?? or MB/s ?
post #12 of 16
Thread Starter 
Yes wired 30Mb/s
post #13 of 16

Somethings not right with your network connection, you should at least be getting 100 megabits. Is it possible to connect the htpc and server directly to the router for testing?

post #14 of 16
Thread Starter 
Quote:
Originally Posted by Mrkazador View Post

Somethings not right with your network connection, you should at least be getting 100 megabits. Is it possible to connect the htpc and server directly to the router for testing?
My media server and my htpc are in the basement and I have this monoprice Gigabit LAN switch on my rack with all of my components on it. My DSL router is only 100Mb/s and it is two floors up, so I have a powerline adapter providing internet from the second floor to my rack in the basement.

I'm going to check all of my cables but I'm sure they are all cat 6 UTP as I just bought them, except for one I think. Also going to take everything else off the LAN switch expect the HTPC and the media server then test again.
post #15 of 16
Quote:
Originally Posted by megrog2 View Post


My media server and my htpc are in the basement and I have this monoprice Gigabit LAN switch on my rack with all of my components on it. My DSL router is only 100Mb/s and it is two floors up, so I have a powerline adapter providing internet from the second floor to my rack in the basement.

I'm going to check all of my cables but I'm sure they are all cat 6 UTP as I just bought them, except for one I think. Also going to take everything else off the LAN switch expect the HTPC and the media server then test again.

 

I have a feeling that the powerline adapter is affecting the switch somehow. Can you remove it from the switch? You may need to manually set a IP address for the server and HTPC to connect to each other.

post #16 of 16
Thread Starter 
So moved the htpc and the media server off the gb LAN switch and put them both on the four port gb switch that's on the powerline adapter. The stuttering stopped!
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