This is their support department giving you a task to perform that might work temporarily. I have also tried this yielding no permanent fix.
Of course many of these headsets are out of warranty, but like you said, this issue has been happening since they were new. I know mine has. The first time I posted on this thread was almost 2 YEARS AGO.
At this point I wish that a Corsair representative would just come out and say this issue won't be resolved. That way I don't feel the need to check back for more information.