Sketchup 2018 tells me I am offline but I am online

I am using Sketchup 2018. Today when I started using it it is saying that I am offline, however I am definately online. It previously connected Ok. I cannot login and cannot use Geo location or 3D warehouse without being logged in.
I tried rebooting the computer, and tried repairing the installation using administrator to no avail.
Any further ideas?

I think I solved it by other posts on forum, be editing the i18n.dat file

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