Hi everyone, I finally managed to upgrade debian to debian 7 I have now successfully installed the calendarserver 3.2. Now sometimes when I try to log in (currently for testing trough the web interface), nothing happens. The Server will ask again for the name and password. The Log entries: [PooledMemCacheProtocol,client] [twext.web2.server#error] [Failure instance: Traceback: <type 'exceptions.AttributeError'>: 'Server' object has no attribute 'protocol' [PooledMemCacheProtocol,client] [twext.web2.server#info] Exception rendering error page: [PooledMemCacheProtocol,client] [twext.web2.server#error] [Failure instance: Traceback: <type 'exceptions.ValueError'>: registering producer <twext.web2.stream.StreamProducer object at 0x3eaed10> before previous one (<twext.web2.stream.StreamProducer object at 0x3eae890>) was unregistered [PooledMemCacheProtocol,client] [twext.web2.server#info] Original exception: [PooledMemCacheProtocol,client] [twext.web2.server#error] [Failure instance: Traceback: <type 'exceptions.AttributeError'>: 'Server' object has no attribute 'protocol' [PooledMemCacheProtocol,client] Unhandled error in Deferred: [PooledMemCacheProtocol,client] Unhandled Error exceptions.ValueError: registering producer <twext.web2.stream.StreamProducer object at 0x3dffe10> before previous one (<twext.web2.stream.StreamProducer object at 0x3eae890>) was unregistered I didn't copied the tracebacks if youre intrested in them let me know. Thank you in advance Uli