Why is my HI 1756WS losing connection with ControlLogix?

My HI 1756WS module is losing connection with ControlLogix. I can cycle power and the connection comes back but I lose it again at different times. What could cause this?

The only time we have seen anything like this is when a MSG instruction is used and it times out. The MSG instruction was getting triggered multiple times and causing an error. Check your program to verify this command is not happening multiple times or multiple MSG instructions are not getting triggered too quickly. The HI 1756WS and HI 1756-2WS modules have an update rate of 50 times per second. If the module sees too many instructions too quickly you will get a time out on the instruction.

Cycling power or sending a "reset" command will reset the module and may solve the problem. The reset command is a MSG instruction like all the rest, but the "Service Code" = 5; "Class Name" = 1; and "Instance Name" = 1. This would then cause the module to re-initialize itself. Clearing the error bits may also solve the problem.