Hi guys, I have a problem with a particular customers site, they have various 1756 L61 series A and B processors. They have a occasional problem (about once a month) where if you attempt to go online with a processor via Ethernet the processor will stop and fault,If they power cycle the processor will be healthy and run normally until you go online again. if they then try to attempt to go online via the serial port on the processor then it will fault also. The only way to fix the problem is to remove the compact flash card and format it, as it appears it is corrupted. Once that is done then there are no problems going online.These processors have no batteries and so on power up they are loading from the compact flash. I cannot find any pattern to this occurring and it will happen on various processors. I have logged a ticket with Rockwell support some time ago but they have so far not been able to offer any solutions or suggestions. I happened to be talking to a fellow engineer who asked me about the same issue without me bringing it up as it has happened to him a few times recently. So has anybody else experienced this problem?