reactive system in RHN

[ESGLinux]

Hello All,

I have 3 systems registered in the RHN but the suscription has caducated.

I have anoher unused suscription and I want to pass reactivate the system
with it but I dont know how to do it

If I run rhn_register (have tried also rhn_check) in the systems an try to
reactive introducing the new instalation number it always gives me the error

" This system does not have a valid entitlement for Red Hat Network."

I think I´m doing something wrong, but I don´t know what.

Any help?


thanks in advance

ESG