I just thought I would pass this on to the faithful ...

I just got off the phone with cox and apparently, the conversion
process didn't happen 100% of the time on their side.  I was
experiencing inter.....mi...ttent pauses of 4-8s which front line
immediately diagnosed as afu on their side.  

* he had me power down the modem
* he purged my modem + "computer" records (I assume the mac addr, but
    who knows)
* he readded same
* had me release/renew DHCP ... which kept me on the same IP

Dunno if it's fixed, but it's apparently common.

YMMV,

David