Hi! 

I'm trying to create a wpdatatable from a Google Doc spreadsheet.  I ran through the tutorial you had on your website here:

http://wpdatatables.com/documentation/creating-wpdatatables/creating-wpdatatables-from-google-spreadsheets/

for doing this but get an error when trying to preview the wpdatatable:

wpDataTables backend error: Failed to connect to 2607:f8b0:400f:802::200e: Network is unreachable

The Google Doc spreadsheet's URL I'm trying to reference is here:

https://docs.google.com/spreadsheets/d/1fp5nlJe0J-Ojp91fAzLz1mDx6IkxrUsI1wCK6A-NO1A/edit#gid=0

I tried publishing to web but the options may have changed since you built the tutorial.  Now the default format to publish to the web is just an html file and creates this link:

https://docs.google.com/spreadsheets/d/1fp5nlJe0J-Ojp91fAzLz1mDx6IkxrUsI1wCK6A-NO1A/pubhtml

But this just hangs wpdatatables on the preview (doesn't give an error though).

Other choices are csv, tsv, pdf, xlsx, and ods. In your screen shot you don't show the extra dialog box that has all the options.  

I am referencing the same Google Doc spreadsheet successfully in the WordPress Google Spreadsheet Inline Viewer.  The link I'm using successfully there is this:

https://docs.google.com/spreadsheets/d/1fp5nlJe0J-Ojp91fAzLz1mDx6IkxrUsI1wCK6A-NO1A/edit?usp=sharing

but that didn't work correctly for wpdatatables either.

Thanks for any help!

Mike