MX64 DNS is Misconfigured

[ludwigbery]

Hi can someone enlighten me that I haven't misconfigure my MX?

I got alert from the dashboard saying "DNS is misconfigured" and on WAN 1 it has "Failed" status yet I have internet connectivity and my server is reachable outside my network and over the internet.

can't find any resolution on this. 

[BlakeRichardson]

@ludwigbery  This is most likely a false positive, if the device is showing active in the dashboard and you can adjust the config on the device and it sitck then I wouldn't worry.

I have  a switch thats showing me the exact same alert even though its DNS is configured the same as every other switch on the network.

[ludwigbery]

@BlakeRichardsonYes, thank you! I can edit the config on MX. I will coordinate with the ISP with this.

[BlakeRichardson]

@ludwigbery below is what my switch is doing regarding the DNS error.

[ludwigbery]

@BlakeRichardsonthat's quite reasonable but mine is a little bit different.

this is my last day report

[MarcP]

Is this your only DNS or do you have other which can be set?

Have this problems some times as well. after changing the DNS in "DHCP"-Settings its fine again.

[ludwigbery]

@MarcP  its my only DNS and I already performed changing DNS on the settings but it did not work... just a hint, I have a server that needs to be accessed outside and it still resolves

[ww]

when this error is seen make some captures to see of the mx ip fails on any of these checks https://documentation.meraki.com/zGeneral_Administration/Other_Topics/Upstream_Firewall_Rules_for_Cl...

[PhilipDAth]

From a command prompt go:

nslookup

server a.b.c.d

www.google.com

Where a.b.c.d is one of the uplink DNS servers.  Is it able to sucessfully resolve a DNS name like www.google.com when it is sent directly to the DNS server from a machine behind the MX?

[ludwigbery]

@PhilipDAthhi thank you for the hint, after doing that, it says DNS request time out.

[PhilipDAth]

Something is wrong with accessing that DNS server.

Does it work when your query 8.8.8.8 instead?

[ludwigbery]

yes, it gives server ip address but when using hostname.com.ph it gives DNS timeout, I'm currently troubleshooting