this has happened to me ever since I have owned this router. The MAC filtering/advanced security panel has NEVER worked properly. My work around:
disable mac filtering. Add device MAC address as allowed to list, then re-enable mac filtering to blocking all new.
I have tried the edit>allow and I've alos tried the allow and neither have ever worked for me. If the device is not on my pre-approved list, I have no way to switch it from blocked to approve. I have to add MAC before it is blocked.
its a huge hassle and bug and I reported it to Netgear and they were no help. They had me go thru all the normal, reset router, reset all settings to default, a huge pain and no solution. I have the latest firmware and always keep it updated.
