Streaming Ultimo->Ultimo - increase buffer ?

Hi

I'm streaming my Ultimo to another Ultimo outside the house.

I´ve just added the serviceID as a ip-service to the channel list on the receiving Ultimo.

All the wan´s are at least 100/100 with low ping times but I do still experience some stuttering/breakups.
When using a old DM800 at the receiving end it´s 99,9% stable with no hick-ups.

I´m wondering if there is some kind of setting on the receiving Ultimo that could be altered to improve stability, e.g. increasing the receiving buffer ?

Any kind of help and/or inputs will be highly appreciated - thank you.

Funburner