If you want to get help from our community, it might not be the best idea to just spam your error message dozens of times. I edited your post, please keep in mind that you should post as many detailed information about your issue and hardware as possible.
This issue can be related to your browser/web-plugin.
Please check following workarounds and keep us updated:
At first, clear your browser cache and/or try a different browser. Reinstall your webplugins for battlelog. Get sure that you have disabled all ad and application blocking software in your browser and using the latest version of Adobe Flash.
If you still having trouble connecting to online gameplay, try following:
For Chrome:
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Uninstalling the Plugin then deleting the containing folder placed in: C:\Program Files (x86)\Battlelog Web Plugins
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Clear Browsing Data ( Settings/Privacy )
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Reinstalling the plugin by logging to Battlelog again
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In the search bar typing the following command: chrome://plugins
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Checking the box Always allowed for ESN Sonar API and Battlelog Game Launcher
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Restarting the Browser
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Log back into Battlelog via Origin (Play from Battlefield4 icon )
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Join a Server
For Internet Explorer 11
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Uninstalling the Plugin then deleting the containing folder placed in: C:\Program Files (x86)\Battlelog Web Plugins
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Restart IE 11
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From Internet Options/General tab -> Clear Browsing data -> Delete button
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From Security tab, slide the bar to bottom -> Medium Protection
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In Trusted Sites -> .battlefield.com should be added along with battlelog.battlefield.com/bf4/ and battlelog.battlefield.com/bf3/
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It will require a System Restart in order for the 7 step to be applied.
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Log in again into Battlelog and download again the plugin.
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Join a server.
Cheers
Basti
