Warning: fopen(/tmp/config.lock): failed to open stream: Device not configured in /etc/inc/util.inc on line 127 Warning: flock() expects parameter 1 to be resource, null given in /etc/inc/util.inc on line 164 Warning: fclose() expects parameter 1 to be resource, null given in /etc/inc/util.inc on line 165 501

 

Potential DNS Rebind attack detected, see http://en.wikipedia.org/wiki/DNS_rebinding
Try accessing the router by IP address instead of by hostname.