Hello there, OS: Windows Vista Home Premium SP2 ESET Smart Security V4.0.474.0. Periodically in my ESET Firewall log I see "Incorrect IP packet checksum" entries logged. My system runs fine but the presence of there entries is annoying since they don't seem to pinpoint a cause or offer any insight into how to correct the problem. I suspect that these sporadic "Incorrect IP packet checksum" entries in the log are benign. If this is the case then is there a way to disable the logging of "Incorrect IP packet checksum" events entirely. Failing that is there anything I can do to determine what is causing ESET to catch these events. If I can find the cause then perhaps I can find the solution. Regards, Laurence.