SMB ISO issue

[biggreyphone]

I am trying to reinstall the 3CX SBC ISO from scratch from a USB drive onto a different Intel NUC I have. I keep getting the error message "3cx sbc download failed to retrieve the preconfiguration file" during install. Upon searching the forum, I see that this was previously seen to be an issue. I am not using any proxies or limitations on my network and is not being blocked. I am able to download the Debian ISO and install the SBC this way but see there may be future update issues with Debian using this pathway. Does the pathway on the ISO need to be updated or is there something else I am missing?

 

[CentrexJ]

The 3CX ISO needs to be able to connect to the internet or it will fail with errors like this.

Make sure it has a valid IP (via DHCP or static) and that you aren't blocking outbound connections.

 

[biggreyphone]

Thanks. Outbound connections aren't blocked. I tried both DHCP and static setting DNS to both 8.8.8.8 and 1.1.1.1 and neither worked. It's weird because I can download and install the Debian updates through an ISO fine.

 

[Alejandro_3CX]

Thanks. Outbound connections aren't blocked. I tried both DHCP and static setting DNS to both 8.8.8.8 and 1.1.1.1 and neither worked. It's weird because I can download and install the Debian updates through an ISO fine.

Hi @biggreyphone In the same network where you are installing the SBC, if you enter the url in the browser https://downloads-global.3cx.com/downloads/debian12iso/preseed_12.5.0_a29bc3d.txt do you see it? check it directly from the machine can you get it using wget ?

 

[Alphabetic]

Have you tried a simple test like pinging google.com?
I have also seen in the past restrictions in the firewall such as content filtering / geo blocking and such. Check firewall logs if you're sure you're good on the client.

 

[biggreyphone]

Yeah I can ping. It seems to be specifically associated with the 3CX ISO image. It may be secondary to the NIC on the Intel NUC not working with this very basic ISO. I guess I could also try a USB Ethernet interface to see if that makes a difference. If I install a normal Debian ISO image, it works fine. I am still playing around with this.