Hello!
Basically I have 2 routers, one is Dir655, second is belkin N1. Dir655 is setup as main gateway (internet cable plugged in to dlink router), when belkin used as secondary switch (with G wifi abilities). So belkin is connected only via local rg45 from dir655 and to all other devices. all routing at belkin is switched off (and dir655 connected as via local cable).
everything in local network, so no firewall is used here. windows xp firewall is configured for exception for nfs server.
In my network is ps3, computer, nas qnap 209pro, few notebooks and dvico tvix. Wifi for N devices shared by dlink, Wifi for G devices shared by belkin. DHCP is handled by dlink (it done really very useful).
Configuration
1. main computer (have nfs server), qnap 209pro (nfs server) connected to dlink via 1gb cable.
2. belkin n1 router connected to LOCAL port (no firewall) from dlink.
3. belkin share internet for notebooks via wifi G. Tvix is connected to belkin router via local port.
dlink upnp enabled.
Trouble with NFS is next :
1. if I use tvix to connect to any notebook (connected via wifi to belkin) - nfs sharing work perfect.
2. if I use tvix to connect to qnap or main computer - nfs working very unstable.
but :
1. if I connect qnap 209 pro directly to tvix (setting ip addresses of course) - everything work perfect.
2. if I connect computer directly to tvix = nfs work perfect.
3. if I change dlink to belkin router (using all gateway functions) - all is work perfect.
Trouble with nfs connected happen ONLY if data stream goes via DLINK 655!
What i mean under very unstable :
1. I able to connect to nfs server from tvix when connection goes via dlink.
2. SEEK is goes very slow
3. datastream is very slow.
Basically it mean what open any video is very long - 2-3 minutes, and after movie is start - all the time happen delays. Like 'wait - waiting for more datas'. It not happen when used belkin router or direct connection. So trouble here is DLINK!
ps : no mac addresses restruction configured, only dhcp server allocate ips by mac address, but have also pool. Trouble not here.
all devices in allow table.
Best Regards,
Alex