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Optimization for MS Teams and Web proxies


shocko

Question

I have a specfic requirement for the MS teams optimization engine running in the Citrix Workspace app 1912 CU5 to direct it's traffic through a web proxy. This seems to be possible as outlined here. How does one configure this? From testing it seems to be ignoring my proxy settings as defined in internet options on Windows 10 21 H2 with Citrix Workspace app 1912 LTSR CU6

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46 minutes ago, shocko said:

I have a specfic requirement for the MS teams optimization engine running in the Citrix Workspace app 1912 CU5 to direct it's traffic through a web proxy. This seems to be possible as outlined here. How does one configure this? From testing it seems to be ignoring my proxy settings as defined in internet options on Windows 10 21 H2 with Citrix Workspace app 1912 LTSR CU6

 

Sorry, are you using CWA 1912 CU5 or CU6? Not clear.

 

Proxy does not require any config, CWA will read it automatically from the OS.

How is it configured on your endpoint?

Can you paste the result of this cmd command:

 

>netsh winhttp show proxy

 

Can you check via Wireshark if packets are being sent from the endpoint to the proxy?

Does your proxy require any auth?

Negotiate/Kerberos, NTLM, Basic, and Digest?

Pac files?

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Aplogies. 1912 LTSR CU 6. Our proxy requires NTLM authentication but can be configured to use the clients IP to allow/deny though not preferable. We do NOT set a winhttp proxy as it does not support NTLM. We define it in Internet Explorer -> Internet Options as follows:

image.png.5046982f311e3ac09919d3b2b4fdf352.png

 

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15 hours ago, shocko said:

Aplogies. 1912 LTSR CU 6. Our proxy requires NTLM authentication but can be configured to use the clients IP to allow/deny though not preferable. We do NOT set a winhttp proxy as it does not support NTLM. We define it in Internet Explorer -> Internet Options as follows:

image.png.5046982f311e3ac09919d3b2b4fdf352.png
 



Can you make a test, and try to configure the Proxy from the Win10 Settings menu instead, and try again?

proxy.thumb.PNG.38c6d9d7f5e95462253d34033752c269.PNG

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Also, in the webrpc logs (AppData\Local\Temp\HdxRtcEngine in your laptop/client machine, not the VDA), you should find a lot of entries with info on the proxy detection.

 

Just search for the word 'proxy'.

 

E.g.:

[1618.138] Apr 01 10:19:20.3 webrtcapi.http_proxy Info: CreateClientTcpSocket: Checking proxy configuration.

 

and more after that one. Can you paste the entries here?

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