[SB9x]

i have noticed, when i put a tar update into the update folder, the rasperrys network performance is very poor under openelec.

Most probably your SD card write performance, assuming you are wired (with WiFi all bets are off).

You can test your network performance with iperf (install from the OpenELEC Unofficial Repository) - this is the best way to test your true network bandwidth as it eliminates all other variables.

If your network performance is particularly slow, or even dropping packets, then this could account for playback problems. Are you wired or WiFi? Test with wired, as WiFi problems are likely to be down to your router, dongle, neighbours etc. and not something relevant to this thread.

i have now found out my problem. the first problem was the sdcard and the second problem was, the wired connection between openelec and the second raspberry with samba, had a fault utp network cable and now i using a new one (sftp) and now - it works.