I don't think this has been explained very well in the documentation (or at least I haven't found the correct part yet.)
In the workspace configuration window where you used to list your application server e.g.
http://myapplicationserver:9510/pmpsvcYou now need to point it to your tm1 web server and port - in your case:
http://servername:9511/tm1web/That's how you tell workspace which tm1 web service to use (or spreadsheet service as well call it now) - hopefully in a future version the configuration screen will explain that bit better.
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Declan Rodger
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