Trouble Streaming Bluray from Unraid

Hello,
I have been pulling my hair out trying to figure out why I cannot stream bluray (in folder structure) to my HTPC from my unRaid server. Many users are doing it just fine and I am not convinced it is necessarily an unRaid problem...

I have searched and cannot find an answer, here is my setup:
Server:
Core2Duo E7500
Gigabyte EP43-UD3L (recently upgraded from an old MSI P6ngm)
4 drives: Hitachi 1tb, Seagate Barracuda 1tb, WD Caviar 1tb, Samsung 1tb
User shares enabled, file structure:
/share folder
/movie title
/movie folders

Split set to level 2

D-link DIR-655 router (server and HTPC are hard wired)

HTPC:
i3 540
Asus H55-M Pro
Samsung 500gb hdd

I am using TMT3 as my player and was using Media Browser in WMC7. I tried uninstalling Media Browser with no effect.

I am able to play discs flawlessly, and if I copy the movie locally it plays just fine.

Additional info:
I am on GigE at both ends. Ping tests show <1ms latency
I have tried enabling jumbo frames. (not sure if I need to change settings in the router...)

When I run ethtool eth0 in telnet it returns 1000mb/s @ full duplex

I can stream internet providers just fine: Hulu, Netflix, etc...

Any suggestions are welcome, I would rather not change to WHS!

Nevermind, I finally found it:

In the Realtek driver "Advanced" settings I changed the interrupt moderation to "disabled" and all works well so far.

I never thought to look farther into the driver setting on the HTPC...

I stumbled on it by accident, actually and I'm not sure it is helping. I originally set it to 9000 but I have seen that copying to the server from the HTPC has issues. The transfer starts out around 30-40 MB/s then drop to around 1 MB/s. Hardly stellar performance! So I am still testing to see what works best. My guess is the limitations of the parity drive in the unraid box.

Also check that "Flow Control" is disabled.

After doing some more testing, I discovered that the unraid network driver does not support 9000 MTU jumbo frames. The largest I can confirm is 7000. This is the largest packet size I can reliably ping from one to the other... YMMV!