Got the same error here. Spotify keeps getting Error 4 using standard DNS, and using Googl's I get Error 2 instead. Now using the web player, I've tried giving full permissions to the open.spotify.com-website with plugins and all but I still get the same screen with "Enable Spotify in your browser". Obviously their support site is **bleep** and have only a single solution that doesn't even have to do with the screen you get, since that is for "If you get the message: Playback of protected content is not enabled". No idea why you even get directed their from the screen we're getting.
I can not enable web player in chrome either and I am guessing it is because chrome has removed our ability to even get into plug ins. I am technologically impaired but so far what I understand is chrome and firefox have complete control now over plugins. There is no way to add spotify to plugins so even those of us who are paying premium can not enable the web player. I've tried everything. "THEY" decide on what we can and can not do. "They" always have. Same Day Same @hit. I am NOT going to let this wreck another minute of my day. Still can use Spotify and many other great sourses of music so to heck with it. It doesn't take much for some of us to fall into the deep dark hole of depression. I refuse to let this kind of cr@p ruin my day. If anyone figures out a solution (perhaps Spotify,aha ha ha) I'll be thrilled. Today is just another day down the rabbit hole. Peace to ALL - and remember...Illegitimi non carborundum!