Hi, My name is Randy. I will assist you.
Are you using wifi to sync your Kobo or did you download and install Kobo Desktop?
If you are already have a Kobo user account, you can use your account to sign into your Kobo device if you are connected to wifi on thew Kobo device, then you can sync and access your library.
When your Kobo tablet is connected to a wireless network, you’ll see a
To join a Wi Fi network:
When you purchase an eBook in the Kobo Store, you can read it on any of your Kobo devices or Kobo apps.