Re: Battlelog log in problem
Well first, log into Origin and then double click the Battlefield 4 icon in your Library. This will automatically log you into Battlelog and link up with your account. If your problem persists, then try this:
1. While in Battlelog, scroll over your name in the top right corner and click "Settings"
2. Make sure that the first option under "Game Launch" which is "Use plug-in free launching is TURNED OFF