I am able to connect to my shared mailbox.
I am trying to copy all the emails subject from inbox to excel. Which i am able to do.
just that outlook times out and not sure what i can do to fix that part.
Increase the connection timeout in Outlook settings. Split the copying process into smaller parts to reduce the load on Outlook and reduce the chance of timeouts. Try checking your network connection to make sure your internet connection is stable. Update Outlook and install all available updates.