Paco Cruz wrote:

Hello all

I a have setup udpcast in a classroom at a Secondary School to distribute CDs and whole directorie trees, and it works like a charm, except for a minor nuissance.

Everytime I want to use udpcast I have to disconnect from the 3com-812 router that serves as a gateway.

When I try to send anything with the gateway connected there is an extremely low transmission with errors el al. As soon as I disconnect the router the throughput goes up to 70-90 Mbps.

Does anybody have any hint?

Thank you all

Could be that the router is using a link speed of 10 Mbps, or slowing everything down with flow-control packets.

Several solutions are possible, depending on the switch:

- Try enabling IGMP support if available (so that only those ports interested in the transmission do get the traffic) - Try disabling flow control (some switches support this on a per-port basis... If that is the case, you only need to disable flow control on the port to which that router is connected)

Regards,

Alain