ReadyNas Duo + Mldonkey + Lost Connection

Hi,
yesterday i have installed the plugin Mldonkey on my Ready Nas Duo v1.
I leave the night to download and share; this morning the nas don't respond from the web and lan. The leds still ok but it seems the nas lost connection.
I power off the Nas from the front Power button and after power on; now if the service mlnet is down, i see that the nas stay connected.
I checked the logs and on "kern.log" i have find this:

Feb 27 22:10:45 rNas kernel: device eth0 entered promiscuous mode Feb 27 22:10:45 rNas kernel: audit(1330377045.432:2): dev=eth0 prom=256 old_prom=0 auid=4294967295 Feb 27 22:28:25 rNas kernel: chn=0, statu/LP_S=0x(d0/d050)29, 32 Feb 27 22:39:58 rNas kernel: chn=0, statu/LP_S=0x(d0/d050)29, 32 Feb 27 23:08:48 rNas kernel: chn=0, statu/LP_S=0x(d0/d050)29, 32 Feb 27 23:14:34 rNas kernel: chn=0, statu/LP_S=0x(d0/d050)29, 32 Feb 27 23:37:37 rNas kernel: chn=0, statu/LP_S=0x(d0/d050)29, 32 Feb 27 23:43:12 rNas kernel: chn=0, statu/LP_S=0x(d0/d050)29, 32 Feb 27 23:54:56 rNas kernel: chn=0, statu/LP_S=0x(d0/d050)29, 32 Feb 28 03:27:28 rNas kernel: nEOP Feb 28 03:27:28 rNas kernel: rxS1(00a20000),rxS0(008001ba)

I have the last version of Radiator (4.1.8) and only installed Ntop, Musicbrowser and now Mldonkey.
The nas is directly connect to my Adsl Router Netgear DGN2200.
For example, yesterday after start mldonkey, i tryed to make a search with mldonky..and after this the nas lost connection with everythink..cifs, ntop, frontview and webgui of mldonkey.
What can i do? After purchase this nas one month ago i had problems with login to Frontview from the web. The tecnical support of Netgear suggest me to change mtu value from 1500 to 1432. (On my adsl router i use 1492 as mtu because my connection is PPPoE). I founded the mtu on mldonkey config and it was 1500...
What can i do?
Bye.
rUzzine