Local DNS Server Issue?

[TJAC]

I switched from public DNS (8.8.8.8 and 1.1.1.1) to our local DNS server yesterday and I was getting reports that one of our WLANs could not access internet.  Our local DNS server has 8.8.8.8 and 1.1.1.1 set up as forwarders.

Why would only one of my 3 WLANs have this issue? Two of my WLANs are on the same VLAN and only devices connecting to the one WLAN were failing.. 

[Stephen_G]

Hello TJAC,

Thanks for getting in touch with us regarding your issue. I found this article, which looks like it may be relevant: 'Technical Tip: DNS Troubleshooting'. If the article doesn't help, let me know and I can ask for a solution.

Thanks,

Stephen