Hi :) My site was running fine with Zope-2.7.4 and ZEO when all of a sudden on some (!) of the pages I've started getting "DisconnectedError". This hasn't happened before and I didn't change anything in my configuration... I've checked the zeo-server's log, here is the important entry: 2006-07-17T13:58:46 ERROR(200) zrpc-conn:172.16.0.43:54825 Error caught in asyncore Traceback (most recent call last): File "/home/zope/usr/lib/python/ThreadedAsync/LoopCallback.py", line 120, in poll obj.handle_read_event() File "/usr/lib/python2.3/asyncore.py", line 390, in handle_read_event self.handle_read() File "/home/zope/usr/lib/python/ZEO/zrpc/smac.py", line 217, in handle_read self.message_input(msg) File "/home/zope/usr/lib/python/ZEO/zrpc/connection.py", line 225, in recv_handshake raise ZRPCError("bad handshake %r" % proto) ZRPCError: bad handshake '(K\x00K\x00U\x0fgetAuthProtocol)t.' I really have no idea what's happening :-O I've searched the Internet and the only thing I could found is this news (see: What's new in ZODB3 3.2.6b1? ZEO): http://www.zope.org/Products/ZODB3.2/NEWS Could I be a victim of this bug? It seems strange that this only happens on some of the pages... If so - Zope-2.7.4 has to have an old ZODB version, how do I safely upgrade it? This is a production server, I really can't loose any data :-( Maybe this is important - ZEO server and ZEO client are not on the same machine, they're connected with network. Or is it something else? Can anyone please help me? I'm glad to give you more information if needed :-) I wanted to send this message to ZODB-Dev but I can't seem to register nor send mails there... Best regards, Crocodil