Changing network card FreeBSD after install

[linux quest]

I am a UNIX newbie. I think I made the wrong selection for my network card -causing me unable to connect to the Internet. Now, I would like to choose my a new network card during installation of FreeBSD. So, I did tried sysinstall command, but, it seems that I am unable to select my network card from there.

Please help. Thanks.

Regards,
Linux Quest
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