When troubleshooting a problem with Access Control lists, one of the things you would want to do is to clear the counters on the ACL matches.
In Cisco IOS, you can clear the ACL Matches counters as follows:
Clear Counters on All ACLs
ciscorouter# clear access-list counters
This clears the matches on all the ACLs on the cisco router or switch.
Clear Counters on Specific ACLs