Release : All supported Clarity releases
For the IP connection Clarity uses the information in the properties.xml file (which is where the information from CSA gets saved).
1. So if you use direct IPs there then you will have to correct the information and then restart all services
2. If you use hostnames and just the IP behind changes then nothing will change from Clarity perspective just make sure the server is able to resolve the hostname to this IP
In both cases we would not recommend reinstalling as you should be able to easily change this.