Active Directory Certificate Services (ADCS)

Our domain has never had a ADCS services.

We have approx. 20K AD users. 

We are looking into deploying a single ADCS Root Server along with NPS and RADIUS server. 

We are only looking at using this for 802.1x for now, but we may consider for other use in the future. 

We currently use CA services (godaddy issues wildcard) for use on our servers that are accessible for public use. 

My question is: Will installing and configuring the new sever as an Enterprise ADCS Server cause any issues with current AD authentication?