DNS Servers and Acttive Directory not communicating properly

I recently retired my old Primary Domain Controller which was also the DNS server that was created when I installed the AD Role.  Now I am getting errors and warning about them not communicating properly.  On the secondary DC, DNS server (It is NOT a DHCP Server) I get the following warning:
Number 4013:


I get the Error Number 408


If I do the nltest /dclist:domain.local I get a list of the 2 server and the correct one is the primary domain controller.

At the same time my internet has become sluggish and I get al ot of the following error:

This site can’t be reached

XXXXXXXXXX server DNS address could not be found.
Try:
Checking the proxy, firewall, and DNS configuration
Running Windows Network Diagnostics

I have both DNS Server listed in the DHCP server scope options.
When I run the command setspn -l hostname my domain name is listed a bunch of times and seems to be correct.
I tried the command repadmin /showrepl but it says that repadmin is not a recognized command.

Thanks for your help!  Assume I know very little when you respond.