Every time I try to upload an image file (Mac, Firefox, Chrome), C5 Version 8.21 through the file manager, I get a Token Error and am asked to reload the page. Files uploaded earlier. Don't now. Haven't added any new add-ons. No custom coding. These are small jpgs and pngs (well under 1MB). Properly named. Caching is turned off. No memcached or varnish on a standard Apache web server. About to throw the computer through the window, but that doesn't really solve anything. Gonna be hard to sell this to my client. What am I missing? Am I the only concrete5 user having this issue?
Oh, and I can't even login in Safari.
I hate WordPress. But at least I can upload image files. Seriously. This is making me physically ill.
This is going to sound like an odd question, but are you on a "normal" internet connection? I've seen weird things like this happen when people are on a mobile network connection because their IP address gets reset every so often which invalidates their session and they get logged out and get token errors.