I need some help from one of you who knows enough about hacking to help me to understand how someone is hacking into our wifi.
This isn't any simple password cracking. I have taken a number of measures, far beyond what would normally be deemed necessary for normal wifi security.
I use OpenDNS and so have log files on recent wifi access as well as router log files. But, this goes way beyond my knowledge.
I would be happy to pay a reasonable rate for the work needed to help me work out how this person is managing to hack in and how to prevent it happening (if possible). If not, we will need to stop using wifi altogether and go back to hard wired. This is what I have done for now, until I can get some help.