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Web Application not fully supporting Lync Client

I'm trying to use Lync 2014 behind my UTM (9.206-35)

I've setup a web application rule to allow for Lync.
This does not seem to work.
I cannot join meetings.

If I place firewall rules allowing

DNS
ICMP ping
IPsec - IKE
Lync dst (dst ports of 50000:59999)
Lync src (src ports of 50000:59999)
Terredo

I can get it to work somewhat the net result is that I can connect to voice communictions (meetings et al) but I cannot share my screen (lead meetings).

In essence the Web Application Rules are not working and my work-around is a bit silly and risky and not completely functional.

The one thing that does work is skipping the web proxy entirely for client machines but that's not really a solution.

I've attached bit of the firewall logs when attempting to connect to a meeting.

Am I missing something?

Thanks,

Doug

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0 rrosson over 10 years ago

I am also having the same issue with lync client behind my UTM connecting to my employers lync server.
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0 t14u over 10 years ago in reply to rrosson

The only way I got Lync to work is to put the Internal and external network in Networkprotection->VOIP->Internal/externalNetwork

M
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0 RFCat_vk_01 over 10 years ago in reply to t14u

If you are using video you should be bypassing the proxy.

Have you tried using application control?

Ian
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0 RFCat_vk_01 over 10 years ago in reply to t14u

If you are using video you should be bypassing the proxy.

Have you tried using application control?

Ian
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