Server 2012 BPA errors - DNS - DHCP - NTP

I see 3 BPA errors in Server 2012. This is a small domain with only one server so it's a DC, DNS & DHCP. Are these errors fixable. Should I be concerned on a small domain like this?

Error 2 - Since it's a one server domain I didn't add a 2nd entry for DNS. One article I read advised against adding the loopback address 127.0.0.1 so this is considered unfixable, right? ON the other hand, this article supports using the loopback. Either way the BPA doesn't seem to be satisfied since the loopback was listed as 1st DNS prior to working on these BPA errors.

Error 3 - I added a user in the Administrator's group for DNS update but it didn't seem to make any difference. It already was using a user in the Administrator's group.

Error 1 - I setup NTP servers as per this video. The servers were set to reliable and show up in the query so not sure why that doesn't show on BPA. I also tried the old Microsoft Fix-it.

Error 1 - The PDC emulator master Server-xxx.xxxx.local in this forest should be configured to correctly synchronize time from a valid time source      

Error 2 - DNS: DNS servers on NIC1 should include the loopback address, but not as the first entry.      


Error 3 - DHCP: Credentials for DNS update should be configured if secure dynamic DNS update is enabled and the domain controller is on the same host as the DHCP server.