the subnets 10.0.0.0/16 and 10.0.1.0/16 can talk, (for diagnosis I openeded all TCP / UDP and ICMP)
The error is a SQl error
the account is domain account and right now it has all the permissions.
the exact erro is:
the login is from an untrusted domain and cannot be used with windows authentication BUT it is a SQL erro 18452
Thanks