There seams to be an error in Chrome application mode running on Windows 8/8.1 After opening a different Chrome window and closing that again, security token seams to get lost. to fix this add the following to the very end of your config.php file: // fix for chrome running in application mode // // ...
Ping of calendar sync throws error 500 about 3 of 4 times
[Wed Jan 22 17:31:53 2014] [warn] [client X.X.X.X] (104)Connection reset by peer: mod_fcgid: error reading data from FastCGI server
[Wed Jan 22 17:31:53 2014] [error] [client X.X.X.X] Premature end of script headers: index.php