I've an publisher installed and i am configuring Subscriber for make a cluster .. while configuring Subscriber asking for publisher hostname and ip ... i am inserting the same hostname and ip but its not authenticating .. some one told me i need to configure it in publisher ... i have added subscriber in publisher but still its not working ??? and does it require lisence also ??bcoz in lisence node its showing me 1 and in remaining 0 ..do i need lisence for clustering ???