topic AnyConnect - Failed To Launch Downloader in Network Access Control

AnyConnect - Failed To Launch Downloader

jacovr — Fri, 21 Feb 2020 18:40:50 GMT

I am running Posture Checks on a large network and have 1 Machine are giving me the following error on the posture module: (v4.4)

System Scan:

Failed to launch downloader.

I have reloaded the client & checked for firewalls/Antivirus ect

Re: AnyConnect - Failed To Launch Downloader

Cristian Ruta — Sat, 30 Dec 2017 11:32:04 GMT

Try to update ISE resources by downloading the compliance modules (again).

Re: AnyConnect - Failed To Launch Downloader

aravikumar — Tue, 07 May 2019 19:45:40 GMT

Downloading is not helping it still shows the same error. Even I am facing the same issue.

Re: AnyConnect - Failed To Launch Downloader

Aravind Ravichandran — Wed, 08 May 2019 10:24:30 GMT

Please generate DART bundle & work with TAC on this.

Re: AnyConnect - Failed To Launch Downloader

iroperto1 — Wed, 26 Jun 2019 17:07:35 GMT

Contacting Cisco TAC doesn't resolved the issue. What's the step from TAC showing what was done?

Re: AnyConnect - Failed To Launch Downloader

timothy.miche — Wed, 26 Jun 2019 19:12:20 GMT

The issue appeared for us when certificates expired which were used for the Profile function. After updating the certificates, the associated PSN's required a manual reboot. Following the reboot and after all the services came back up, the connections were able to be successful.

Re: AnyConnect - Failed To Launch Downloader

Jan Slabber — Wed, 21 Oct 2020 07:08:02 GMT

Hello All,

I also have this issue, may I ask if anybody can look at the DART please? I have install the root cert, restarted and also un-installed multiple times.

Version: 4.8.03052

Appreciate the help.

Re: AnyConnect - Failed To Launch Downloader

andres.picos — Fri, 30 Oct 2020 13:02:22 GMT

This cannot be the solution !!
If a discussion is to be opened, the real solution must be provided and not given as solved just that "a case must be opened with the TAC".
This is absurd.
Now not only is Cisco software and TAC support bad, discussion forums are bad too.

Re: AnyConnect - Failed To Launch Downloader

MADZIVOFortune1233 — Sat, 22 May 2021 21:24:26 GMT

Go on work Centers > Posture> Client Provision > Client Provisioning Policy - check your Client client provisioning policy under the Results column check the config name. Go on resources and select the config name above hit edit and change the compliance module to 4.3.2009.614

just solved it today. +263779725450

Re: AnyConnect - Failed To Launch Downloader

mortezart — Sat, 02 Oct 2021 01:49:09 GMT

This is a non-working & generic answer! It was attached to no avail.

I have the same error, on a Mac, with newly installed macOS 10.15.7 (Catalina).

As the System scan is completed, the following error appears: Failed to launch downloader.

NB. It dies not occurs on a Mac that is upgraded (from Mojave) to macOS 10.15.7.
Attached: Console log errors and Failed to launch screenshot.
Please advise.

Re: AnyConnect - Failed To Launch Downloader

m.govorov — Mon, 11 Oct 2021 08:57:13 GMT

I had a similar issue, for me problem was that the version of ISE compliance module instaled on PC was higher than configured on ISE,

You need to have the same or lower version of the compliance module installed on PC, if the version is lower AnyConnect will the upgrade module, if PC has installed a higher version it will fail,

because AnyConnect is trying to downgrade the compliance module but downgrade is not supported.

Re: AnyConnect - Failed To Launch Downloader

al-kilidar — Thu, 11 Nov 2021 17:40:05 GMT

updating the compliance module on ISE to the latest fixed this issue for me.

Re: AnyConnect - Failed To Launch Downloader

dbogdan — Sat, 12 Mar 2022 22:44:38 GMT

Thank you!!! After loading the new certs I had to reload only one of the units. The others worked. Very strange.

Re: AnyConnect - Failed To Launch Downloader

cr168326 — Mon, 20 Jun 2022 06:53:57 GMT

If anyone is still facing this issue, you can try starting AnyConnect from command line using the command:

./vpn/vpn

and connect to host using command:

connect <host-name>

It worked for me.

Re: AnyConnect - Failed To Launch Downloader

vishwas45 — Sat, 25 Mar 2023 06:07:19 GMT

Where did you update the cert.?

Re: AnyConnect - Failed To Launch Downloader

dbogdan — Sat, 25 Mar 2023 15:28:11 GMT

I had to update the certs in ISE.

Re: AnyConnect - Failed To Launch Downloader

NeemaM — Fri, 07 Jul 2023 19:01:36 GMT

It's a trust issue with your client and ISE. There were talks about certificates in this forum, which is probably the root cause. I personally have not digged deep enough to figure it out. A quick workaround for me, and my end user's, is to simply disable the following:

This will surely work. Then the client will be able to run the downloader.

I think there were also some mentions about the version of the software that is installed. I don't think that really matters in this case. So long as there is a version mismatch between your end point and whatever the ISE policy is trying to configure, the provisioning policy of the ISE will attempt to push the software and execute it on your side. If you so happen to have the same exact version, then this "failed downloader" issue may never even happen. At least this is what I have gathered so far.

Hope this makes sense and helps.

Re: AnyConnect - Failed To Launch Downloader

aberaw — Sat, 05 Aug 2023 09:11:46 GMT

We have the same issue not solved. Our compliance on AC 4.10 is 4.3.2336.6145. The same PC works using Enterprise WiFi but not on corporate wired.

Re: AnyConnect - Failed To Launch Downloader

aberaw — Sat, 05 Aug 2023 09:13:17 GMT

How do you update the compliance on ISE?