problem with NICs -need help

dear friends;

I have two computers (Manager and CCSDS) instaled in earth station connected with an intergrate NIC to 3COM NIC.

sometimes I got error numbers: -4 and -5; I tryed to ping but its not working,
after restart the CCSDS computer ,Ping working.

I didnt know how to solve the problem;
I need your help;


cordialy

disconnection at the wired network can be related to 3 reasons:
1-cable failure (maybe you have lose connection).
2- bad hardware
3- incorrect driver
Over the time, heating and cooling components will cause the loosening of their joints and the failure will appear.
please check your connection first and next install proper driver for each NIC. and finally check your hardware.