3CX server cannot connect to the activation server.

[GraceLiu]

Has anyone encountered this issue before? What are the common causes?
When opening the 3CX server license page, it shows a 403 error with the following details:


The activation server can be pinged from the backend, but when running the command wget https://activate.3cx.com, the activation server responds with "403 Forbidden".


The 3CX server version is V20 Update 7 (Build 1060).

 

[RoryJ]

DNS? ssh into the machine and check its nameservers.

/etc/resolv.conf

Change to Google 8.8.8.8 & 8.8.4.4 if not already set to those, then reboot.


Edit: Sorry, after coffee I read your post properly and see you can ping the server.

 

[GraceLiu]

DNS? ssh into the machine and check its nameservers.

/etc/resolv.conf

Change to Google 8.8.8.8 & 8.8.4.4 if not already set to those, then reboot.


Edit: Sorry, after coffee I read your post properly and see you can ping the server.

Thank you for your attention to this issue.
Yes, the default DNS server address is set as 8.8.8.8.

 

[KyriacosS_3CX]

A) Disable IPv6, see if it helps.

B) Open a ticket so the team can check if your IP is somehow blacklisted.

C) Any chance there is some proxy in-between, perhaps at ISP level interfering?

And if you can advice via Private Message the FQDN/IP of the server, it can help. I believe the key used for the post is not the one having the issue?

 

[GraceLiu]

A) Disable IPv6, see if it helps.

B) Open a ticket so the team can check if your IP is somehow blacklisted.

C) Any chance there is some proxy in-between, perhaps at ISP level interfering?

The IPv6 is disabled at default.

Because it is NFR license, we cannot open a ticket, could you please help us check if the IP is blacklisted?

 

[KyriacosS_3CX]

The IPv6 is disabled at default.

Because it is NFR license, we cannot open a ticket, could you please help us check if the IP is blacklisted?

I didn't get to edit in time, the key I see in the post is for an update 8 system, but you mention update 7. Please confirm key/fqdn in private message and we will take a look.

 

[KyriacosS_3CX]

And for reference from the screenshot, the error is via Clouflare - 1006:
https://developers.cloudflare.com/s...atus-codes/cloudflare-1xxx-errors/error-1006/