Hi @enriluis
the "nsupdate.key is unreadable" isn't the main problem.
This
may be the problem. Checking your server ( bicsa.cu - Make your website better - DNS, redirects, mixed content, certificates ) your second nameserver is critical:
| X | Fatal error: Nameserver doesn't support TCP connection: ns2.bicsa.cu |
|---|---|
| X | Nameserver Timeout checking Echo Capitalization: ns2.bicsa.cu |
| X | Nameserver Timeout checking EDNS512: ns2.bicsa.cu |
PS: Another user had problems with pfsense: