Dear Alan,
Thank you for reaching Small Business Support Community.
I would first suggest you to upgrade to the latest firmware release v4.2.2.08, some incorrect logs generations were fixed on this new release;
http://software.cisco.com/download/release.html?mdfid=282414011&flowid=785&softwareid=282465789&release=4.2.2.08&relind=AVAILABLE&rellifecycle=&reltype=latest
Once that's accomplished I then suggest you to check on the router's "Log>System Statistics" to determine any abnormal behavior.
Please let me know if there is any further assistance I may help you with.
Kind regards,
Jeffrey Rodriguez S. .:|:.:|:.
Cisco Customer Support Engineer
*Please rate the Post so other will know when an answer has been found.
Jeffrey Rodriguez S. .:|:.:|:.
Cisco Customer Support Engineer
*Please rate the Post so other will know when an answer has been found.