problem with real time udp in xPC target 5.5 when using the Intel-Gigabit ethernet adapter

hello! I have two network adapters in my xPC target which both of them are Intel-Gigabit(82540EM). when I try to boot the system and load my model on target machine, I have no problem. but when I run the model, It stopped in running mode and the connection between host and target failed. (TCP/IP connection disconnected). I check the setting of the network configuration and set it's parameters as follows: IP address : 192.168.4.105 subnet Mask : 255.255.255.0 Gateway : 192.168.4.1 Ethenet driver : Intel Gigabit PCI bus: 2 Slot: 3 when I changed the secondary adapter card and useed a 8255x card, program was completely executed and had no problem. but I need to use Intel-Gigabit as a secondary adapter. please help me to find the problem. best regards.

[Suneesh]

1. Do you see an error message? 2. When you say "secondary adaptor" are you using this for realtime Ethernet or UDP? In which case they there needs to be appropriate init blocks and the (probably incorrect)settings in those blocks could be causing a problem.