Solved 3CX Trusted secure file is invalid

[vserg626]

It seems to be TcxTrusted.bin is invalid (
I recently renewed my license, but when updating it I get the error: "3CX Trusted secure file is invalid" Then it green again.
Windows, On-Prem, Version 20.0 Update 9 (Build 995 Release - AI 1.4.48)

Disclaimer, I have about 15 similar systems, and they all use the same firewall policy. No inetwork ssues. According to Wireshark, this system is the one causing the connection to actiivate.3cx.com to be disconnected after some communication.

 

[TheodorosG_3CX]

Is this on a Windows 10 or 11 ?
Is Windows OS fully updated?
Is there any Antivirus running on the server?

 

[vserg626]

Its a Windows 19 Server fully updated. Antivirus turned off.

 

[TheodorosG_3CX]

When you try to refresh the license key and perform an activation, is there any specific error?

 

[vserg626]

When you try to refresh the license key and perform an activation, is there any specific error?

The error is "3CX Trusted secure file is invalid"

 

[ivank]

Is any TLS Forward Proxy/DPI present in the network?

 

[vserg626]

No Proxies/DPI here. I can open https://activate.3cx.com on server in web-browser. And I wrote in the root post: I have about 15 similar 3CX systems, and they all use the same firewall policy. No inetwork ssues. ". I can see in Wireshark log, this server can establish tcp/443 TLS1.3 connection with activate.3cx.com, but drops it after some time.

 

[NikosT_3CX]

@vserg626 your partner opened a ticket with us this morning and now he menioned that its for your systems.
Lets continue in the ticket as logs are provided there with more details on the issue.

 

[NikosT_3CX]

@vserg626 as per the ticket, the Teamviewer session and the comminication with the partner,
the issue has been identified and it was the End Point Protection and the restrictions that existed based on the policies.
As mentioned to the parner as well, we highly recommend to setup the PBX on Linux machine with our ISO
in order to ensure that you wil not have such similar issues in the future.