Webex Meeting VDI plugin stopped working recently on 9.1

On 4/14/2021, a new 9.1 firmware (9.1.2101) was released, as well as Cisco Webex Meetings (40.10.11.15_6) and Cisco Webex VDI (41.1.0.17621_3) apps. None of those updates appear to address the issue.

Small update with info I found. I might be mistaken in some of my assumptions but that's how I see the problem now

1. New webex meeting plugin (pkg) works only with webex meeting app version 41.3 or lower. You can test it if you install webexapp.msi of older version (41.3 preferably) and delete autoupdates in %localappdata%\Webex right before starting the meeting (so webex don't have time to download new version). Video and audio works, vdi plugin works. Unfortunately it will download 41.4 version automatically and you can't do anything about it.

2. Ipk plugin file from webex site is for 'Dell Hybrid Client(DHC)' OS - customized ubuntu distro with WMS agent. Unfortunately if is not available for our wyse 3040 because of low system specs.

3. Webex meeting site supposedly can be locked to 'slow channel' and you'll get desktop app v.40.xx, but according to docs you cannot switch existing site from fast to slow channel, I suppose you can only create new one. Also not sure how it will work when you join a meeting from other company on fast channel - will it upgrade your local app or will it run in some kind of compatibility mode

So, we're stuck and waiting for pkg with support for meetings 41.4...

Small update with info I found. I might be mistaken in some of my assumptions but that's how I see the problem now

1. New webex meeting plugin (pkg) works only with webex meeting app version 41.3 or lower. You can test it if you install webexapp.msi of older version (41.3 preferably) and delete autoupdates in %localappdata%\Webex right before starting the meeting (so webex don't have time to download new version). Video and audio works, vdi plugin works. Unfortunately it will download 41.4 version automatically and you can't do anything about it.

2. Ipk plugin file from webex site is for 'Dell Hybrid Client(DHC)' OS - customized ubuntu distro with WMS agent. Unfortunately it is not available for our wyse 3040 because of low system specs.

3. Webex meeting site supposedly can be locked to 'slow channel' and you'll get desktop app v.40.xx, but according to docs you cannot switch existing site from fast to slow channel, I suppose you can only create new one. Also not sure how it will work when you join a meeting from other company on fast channel - will it upgrade your local app or will it run in some kind of compatibility mode

So, we're stuck and waiting for pkg with support for meetings 41.4...

Thank you AndyScull for your finding, we are in the same situation for the auto update.

I have one more issue, may be you already resolve it. When I create a meeting before to enter into it I can use my Jabra Headset and my C930e webcam in the preview, but when I enter into the meeting the connect audio loop until it failed.

My thinDevice (5070/9.1.2101) is behind a proxy, may be we need to pass the Proxy setting to the webex plugin on the thinDevice ?  Are you also behind a proxy ?

thank you.

Hello!

About audio loop - it is because your vdi plugin on thin client cannot connect to webex cloud.

As far as my tests went, thinos proxy settings are not used by vdi plugin, I suppose proxy is only used for connecting to WMS or some other management cloud. I may be mistaken since our proxy server is strictly controlled by our parent organization and I cannot even get logs to check if the connection attempt was made.

Our solution for "Connecting audio" loop was to open direct internet access from thin client VLAN to specific webex cloud IP ranges. See "How Do I Allow Webex Meetings Traffic on My Network?" in their help, sadly I can't post url links here

IP ranges are mentioned there, we opened access to all of them since this was recommended (instead of opening only IP range in your country). As far as I remember we opened ports 443, udp 9000 and maybe those "Alternate Webex Client Media" ports, nothing else. It all worked for a week then webex meetings 41.4 came out and now everything is dead.

For now we have a temporary manual fix for specific users who really want to use vdi plugin on thin clients - we install meetings 41.3 on their machines and disallow write to %localappdata%\Webex\Webex in user profile. This way meetings client cannot install newer version and has to run installed 41.3 version, which works with existing ThinOS VDI plugin

I didn't hear any news from our webex administrator, so probably he didn't get any solution from our cisco manager either

We have the same problem here. Dell Wyse team, where are you? You haveto keep up to speed with this.

In this link:

https://www.dell.com/support/manuals/fr-ch/wyse-thinos-maintenance/wyse-thinos_9.1_rn/citrix-workspace-app-feature-matrix?guid=guid-4da13840-9ddd-46f7-9554-c89adec8b536&lang=en-us

The Citrix Workspace app feature said that Webex Meeting VDI support the Proxy.

"Unified Communication Cisco Webex Meetings Offloading (wVDI)
Supported
Supports Webex Meetings optimization mode through proxy server which is configured in ThinOS Network Proxy by APT/Wyse Management Suite. It does not support the proxy configured by DHCP Option 252."

How I can setup that ? in the APT/WMS I can just add WMS;RTME;HORIZON;WVD application in the proxy list,

We are not using the WVD application so doing the above configuration in WMS 3.2 solve our problem of having Webex Meeting VDI behind a proxy

If you don't put an application WMS try to put all applications (WMS, HORIZON, etc.)

Hi all, can somebody provide me a link where to download the older version 41.3? I also have the same mentioned problem but I only have 41.4 version of the webex vdi app which does not work with mit 5070 ThinOS 9.1.x

Would appreciate!

Best

Flo

You have to ask for a so called Webex site downgrade at Cisco via their support.

I know its a pain but as long as Dell does not release the newly submitted plugins from Cisco no other chance.

Thank you. We already did the downgrade to Webex SlowChannel now. After that point, everything works perfect including audio/video. Both parties are staying on the same version (41.2.7).
I guess release date for a new Webex Meeting Plugin from Dell is scheduled for this week!

Best
Flo