Hi Savannah,
Can you try follow these steps to setting up your LinkedIn autopost:
1. Edit your LinkedIn application.
2. Check Website URL, and JavaScript API Domains make sure they are the same as your site domain (
http://www.yoursite.com and
http://yoursite.com make a big difference)
3. Revoke and regenerate OAuth Keys
3.5. rw_nus must be checked
4. Go to the EasyBlog -> Autoposting -> Advanced Settings page and revoke the access.
5. Go though the EasyBlog -> Autoposting -> Step by step guide and re-enter the new keys and reauthenticate the LinkedIn access.
note: check this
http://content.screencast.com/users/nikfaris/folders/Jing/media/586889a2-36b3-4d11-9ce2-e44638502c83/2014-01-16_1239.png
If you still having this issue, can you provide us with backend access and Linkedln account so that we can assist you further.
Please advise.