Maybe not using OpenDNS at all? http://welcome.opendns.com/
Ensure that you correctly configured only the OpenDNS resolver addresses.
Only if you're actually using OpenDNS, is your IP address correctly registered with your dashboard network at https://dashboard.opendns.com/settings/ ?
If you need more help, copy & paste the complete plain text output of the following diagnostic command:
nslookup -type=txt debug.opendns.com.