The only time ethernet touches the back of the ird from the back of cck- w is when it is a ka/ku install. Otherwise coaxial comes from the lnb thru The cckw and then to reciever with no Ethernet cable. This would hypothetically disable Mrv if it applied and cckw would have missing lights. And this is a fact.
This is true but if he is only using 1 receiver and can get it working connected direct to cck-w he may want to do that now and cross the MRV bridge when he gets to it?