Need to upgrade C300 firmware, ISP refuses to help, Netgear support won't help

As has been stated several times now, Netgear cannot (and do not) provide updated firmware to end users, so Tech Support cannot help in that direction either. However if people who own these types of router can post the actual details of their issues here, and I mean detail – not ‘I have the same issue as XYZ’, then I can get information back to Netgear engineers, start new threads and provide as much detail as possible. That way there is a much greater chance of fixes appearing in a new version of firmware sooner. Those people still in contact with Tech Support should try to explain the issues and if told that their router is out of warranty period ask that the issue is logged and reported to Netgear Engineering.