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- Trio USB Passthrough doesn't work for me

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01-30-2020 03:43 PM
Any ideas why I would be having an issue using the Trio USB Passthrough working on my Surface Book 2? I can confirm that my configuration is correct because I can get the USB passthrough to work on a spare Dell Latitude laptop. However the software installs, but just sits at "connecting to trio" on my Surface. Is there a software conflict with other programs? I've uninstalled every other Polycom app I had installed (Companion, PPCIP, RealPresence Desktop, etc.).
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Accepted Solutions

01-31-2020 11:19 AM
I figured it out. I didn't realize that the Poly USB application had to have firewall exceptions... I had assumed all network traffic was going through the Trio and it was just a USB Device connection to my PC. My local firewall was blocking the USB application from accessing the network. I don't use the Windows Firewall so the application did not write the firewall rules to open the network traffic.
Something to keep in mind when end-users use other firewall or endpoint security solutions.
Thanks for that KB article 41117... not sure why I couldn't locate it before.
01-31-2020 12:35 AM
Hi @acelis,
which software version do you have on your Trio and which version is on you Surface? I have a Surface Book 2, too, and it runs nice and smooth. With all the other nice Apps from Poly in parallel. No issues.
01-31-2020 01:17 AM
Hello @acelis
as outlined by @mshu1 you have not provided sufficient information for us to try and troubleshoot.
I actually just created this:
Jan 30, 2020 Question: How can I troubleshoot Poly Passthrough issues using a Poly Trio?
Resolution: Please check >here<
The next step would be a service ticket via your Poly reseller.
Best Regards
Steffen Baier
Notice: I am an HP Poly employee but all replies within the community are done as a volunteer outside of my day role. This community forum is not an official HP Poly support resource, thus responses from HP Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge.
If you need immediate and/or official assistance for former Poly\Plantronics\Polycom please open a service ticket through your support channels
For HP products please check HP Support.
Please also ensure you always check the General VoIP , Video Endpoint , UC Platform (Microsoft) , PSTN

01-31-2020 10:53 AM
On the Trio 8800 I'm running the latest available UC version 5.9.2.7553.
On the Visual Pro I'm running the latest available version 6.2.2.1-600016.
On my Surface Book I'm running the PolyTrioPass-Through version 1.0.0.0067.
My Surface Book is running Windows 10 v1909.
I'm actually a reseller, and have had a support ticket open with Polycom but not getting any kind of response which is why I've had to resort to the Community Forums. My open ticket is SR 1-15300238791.

01-31-2020 11:19 AM
I figured it out. I didn't realize that the Poly USB application had to have firewall exceptions... I had assumed all network traffic was going through the Trio and it was just a USB Device connection to my PC. My local firewall was blocking the USB application from accessing the network. I don't use the Windows Firewall so the application did not write the firewall rules to open the network traffic.
Something to keep in mind when end-users use other firewall or endpoint security solutions.
Thanks for that KB article 41117... not sure why I couldn't locate it before.
01-31-2020 11:31 AM
Hi @acelis
I literally only created it due you posting here.
What Firewall are you using and would you mind posting a screenshot for everybody?
Did you leave a note in the case as I made the engineer aware that you have not had heard back?
Best regards
Steffen Baier
Notice: I am an HP Poly employee but all replies within the community are done as a volunteer outside of my day role. This community forum is not an official HP Poly support resource, thus responses from HP Poly employees, partners, and customers alike are best-effort in attempts to share learned knowledge.
If you need immediate and/or official assistance for former Poly\Plantronics\Polycom please open a service ticket through your support channels
For HP products please check HP Support.
Please also ensure you always check the General VoIP , Video Endpoint , UC Platform (Microsoft) , PSTN