Problems with registration: 2 computers at home

We have ADSL internet with (I think so ???) 1 IP and 2 computers at home. Should we get the registration’s keys separately, or we can use the same key?
The fact is: I’ve got the key 3 days ago, but my daughter can’t still receive a key for her computer. May be, that’s because of 1 IP?
Can we use my received key on daugher’s computer? Or she must repeate registration?
Thanks in advance!

Hello putnik & welcome to the forum 8)
In case you both use the Home version, than it’s not a problem to use the same registration key on both machines.
Take care.

No. The key is delivered by email basis, not IP. Probably a spam policy of ISP, or your antispam application.

But you can use the same key if the Home & non-commercial both conditions apply.

I see. Thanks a lot! Спасибо!