You may see yourself as being offline when other people see you as being online in Groove Workspace 2.x (916336)

RESOLUTION

To resolve this problem, modify your presence settings, or add your identity to your My Contacts list.

To modify your presence settings, follow these steps:

1. Click Go To, and then click My Accounts.
2. Click all Groove users listed in My Contacts under Show your online presence to, and then click to select either all Groove users in your shared spaces or everyone.

To add your identity to your My Contacts list, follow these steps:

1. Click Go To, and then click My Contacts.
2. Click Add Contact.
3. Under Look in, click to select Known Groove Contacts.
4. Click to select your identity from the list and then click Add.