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New Contributor

unable to resolve hostname

when pinging an IP in FG' s CLI, packets are received... but when pinging a site like, it gets " Unable to resolve hostname" why is that? the weird thing is the users behind the FG can load webpages just fine i' ve only put and as the DNS help pls? using 100D running on V4 patch 15...
Valued Contributor III

Match the DNS servers on the FGT with the ones the clients use, then you should get the same results. System > Network > DNS (on V4.3.x)

Bob - self proclaimed posting junkie!
See my Fortigate related scripts at:

Bob - self proclaimed posting junkie!See my Fortigate related scripts at:
New Contributor II

logdesc="FortiGuard hostname unresolvable" hostname="" msg="unable to resolve FortiGuard hostname"


Any one fimiliar with this log?

New Contributor

I have same problem and able to resolve it by untick "override dns" in your port interface setting. Make sure use default fortiguard DNS.




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