Version Mismatch

[Eagle2469]

I installed version 16 to try it out. But, since ring queues is missing, I decided to go back to version 15.5. However, when I try to restore my backup I get the following error.

"Product cannot be activated because license key is for a previous version. Upgrade license key or purchase maintenance from https://customer.3cx.com/orderform/default.aspx"

It looks like the upgrade changed the license to version 16.0.0 and won't let me use it for 15.5. This is using the free standard license. How can I fix this?

 

[cobaltit]

I don't think you can without involving 3CX Support which will have it's own challenges. Hopefully you took a backup without the license key and FQDN. If so you can just release the FQDN for your current key, get a new free key and restore v15.5 .

 

[YiannisH_3CX]

Hello @Eagle2469

Please send me a p.m with your licence key information so we can look into the issue.