We have a Cisco network that is slowly but surely being converted to Meraki. Our hardwired customers have no issues connecting and reaching the internet, but our Wi-Fi customers are having issues reaching the internet. It appears to be a DHCP and/or DNS issue. Cisco Meraki recommends that we use a stand alone DHCP/DNS server, but when I do, the user absolutely cannot reach the internet. If I use the security appliance as the DHCP and Google as the DNS, they can "Most of the time". The problem is that the majority of our Wi-Fi customers are going to be paying for this service sometime after the New Year. I have to find a solution ASAP and Cisco can't figure it out.
The stand alone server we are using is a Windows Server 2012r2 server.