topic Re: Getting the error "Unable to fetch external dynamic list. Couldn't resolve host name. Using old copy for refresh. in General Topics

Getting the error "Unable to fetch external dynamic list. Couldn't resolve host name. Using old copy for refresh.

Kathiravan_R — Mon, 02 May 2022 14:51:42 GMT

We have PA 5250 which has configured with multiple EDL. Suddenly all the EDLs are failing that throws the "Unable to fetch external dynamic list. Couldn't resolve host name. Using old copy for refresh." As a workaround we rebooted the firewall and it resolved the issue. Looking for the experts advise to resolve this issue permanently.

Re: Getting the error "Unable to fetch external dynamic list. Couldn't resolve host name. Using old copy for refresh.

BPry — Tue, 03 May 2022 20:36:25 GMT

@Kathiravan_R,

What PAN-OS release are you running? I've run into this issue on a past release on a few nodes and what I've found to fix the issue is two options:

1) Commit a change to the firewall. This for some reason got it working again 95% of the time without the following.
2) Restart the management. Keep in mind that this will kill off any unsaved candidate configuration changes that haven't been saved or committed and will sever management connections to the device while everything restarts.

Re: Getting the error "Unable to fetch external dynamic list. Couldn't resolve host name. Using old copy for refresh.

Kathiravan_R — Wed, 04 May 2022 13:30:14 GMT

@BPry

Thank you for looking into this issue. Currently firewalls are running on PAN OS 10.1.4-h4 version.

Error(Unable to fetch external dynamic list. Couldn't resolve host name. Using old copy for refresh) shows that there might be issue with the DNS because host resolution is not happening. How do I find it?

Re: Getting the error "Unable to fetch external dynamic list. Couldn't resolve host name. Using old copy for refresh.

JonasVanraes — Tue, 12 Jul 2022 14:36:26 GMT

We also had this issue running PAN OS 10.1.5-h1, restarting management "fixed" the issue.

Regards

Re: Getting the error "Unable to fetch external dynamic list. Couldn't resolve host name. Using old copy for refresh.

yesitisme_007 — Mon, 05 Dec 2022 17:14:12 GMT

For what it is worth, this issue still exists with PAN-OS 10.1.6-h6. Has anyone opened a case with PAN support?

Re: Getting the error "Unable to fetch external dynamic list. Couldn't resolve host name. Using old copy for refresh.

skywalker21 — Wed, 18 Jan 2023 00:10:51 GMT

I am also seeing this issue in 10.1.8

Re: Getting the error "Unable to fetch external dynamic list. Couldn't resolve host name. Using old copy for refresh.

akbar.raoufi — Mon, 12 Feb 2024 17:40:10 GMT

Have this issue in 11.0.2-h2

Re: Getting the error "Unable to fetch external dynamic list. Couldn't resolve host name. Using old copy for refresh.

JCork1 — Mon, 13 May 2024 15:27:40 GMT

We're running into this same issue on 10.1.11-h5 and as BPry noted initially, running a commit to this device seems to have resolved the issue, at least temporarily. Prior I was this I was rebooting the firewalls which also resolved the problem temporarily.

Is anyone aware whether this is a known bug at this point and/or whether there's some permanent solution to this issue?

Re: Getting the error "Unable to fetch external dynamic list. Couldn't resolve host name. Using old copy for refresh.

Vanessaxu — Wed, 25 Sep 2024 16:59:19 GMT

same issue on 10.2.9-h1