i had issues with 1.10 not loading some widgets on the main dashboard… which i appeared to have resolved by altering the server config of nginx…
with 1.11 and 1.11.1 i am finding this issue has returned and widgets are even less successful at loading.
i saw a 502 error at least once. i know the general message with 502 errors and nginx is to increase various buffers; however, i already have them set much larger than most webpages recommend.
i increased the limits to 15+ times the recommended level for nginx - i did this for my own site, with or without piwik… however, this alone is not resolving the issues with piwik. my website is ok.
thanks for assisting. i already have TCP/IP type lines in those files in place of unix ones (always have done)… so that is not the issue.
i also have the latest versions of php and nginx as far as i know:
php 5.4.12
nginx 1.2.7
hmm, this could be getting closer to the issue. i setup my site to run ‘behind’ incapsula’s web firewall service around the same time as piwik was upgraded from 1.10… so possibly that is causal here. i will explore further.
Please disable the UserLanguage plugin. You can also delete the plugins/UserLanguage folder completely afterwards. We replaced the plugin a few versions back with LanguagesManager.