Hello,

We just install Firebird 2.1 and i notice that i have sometime (one a
day) this errore (take from the log file) :

ECISNET103 (Server) Thu May 08 11:10:35 2008
*** DUMP ***


ECISNET103 (Server) Thu May 08 11:10:35 2008
Fatal exception during clumplet dump: Invalid clumplet buffer
structure: spb in service attach should begin with isc_spb_version1
or isc_spb_version


ECISNET103 (Server) Thu May 08 11:10:35 2008
Plain dump starting with offset 953:
PbxHYtiyjlISupLVystMawWGJRNQaxwtJGKwzgpIjlCHCGVOSipnOCvXicHBKxUUAulOut
S


ECISNET103 (Server) Thu May 08 11:10:36 2008
Database: unknown, SERVER/process_packet
Invalid clumplet buffer structure: buffer end before end of
clumplet - clumplet too long


ECISNET103 (Server) Thu May 08 11:10:36 2008
*** DUMP ***


ECISNET103 (Server) Thu May 08 11:10:36 2008
Fatal exception during clumplet dump: Invalid clumplet buffer
structure: spb in service attach should begin with isc_spb_version1
or isc_spb_version


ECISNET103 (Server) Thu May 08 11:10:36 2008
Plain dump starting with offset 967:
SVhdnjoUeSFWHqNBqKDTPNnvCuAAKHQUxshZKxCLokUjEuhWUVNIBnclq


ECISNET103 (Server) Thu May 08 11:10:36 2008
Database: unknown, SERVER/process_packet
Invalid clumplet buffer structure: buffer end before end of
clumplet - clumplet too long


ECISNET103 (Server) Thu May 08 11:10:38 2008
*** DUMP ***


ECISNET103 (Server) Thu May 08 11:10:38 2008
Fatal exception during clumplet dump: Invalid clumplet buffer
structure: spb in service attach should begin with isc_spb_version1
or isc_spb_version


ECISNET103 (Server) Thu May 08 11:10:38 2008
Plain dump starting with offset 920:
ZnRlRxgKxpZATtZgAyNWjwdJNFJdJIEpGtCBlJdYuzVEtPyDYtRRZXEvVLMfsNlbVrXlEi
diKeSHyGJTNPJQQPMXVweVUWWiXgYgLCGm


ECISNET103 (Server) Thu May 08 11:10:38 2008
Database: unknown, SERVER/process_packet
Invalid clumplet buffer structure: buffer end before end of
clumplet - clumplet too long


ECISNET103 (Server) Thu May 08 11:10:41 2008
*** DUMP ***


ECISNET103 (Server) Thu May 08 11:10:41 2008
Fatal exception during clumplet dump: Invalid clumplet buffer
structure: spb in service attach should begin with isc_spb_version1
or isc_spb_version


ECISNET103 (Server) Thu May 08 11:10:41 2008
Plain dump starting with offset 973:
TGoZCocoPwEvEXjwJtvZLjrparFbnLCHnMpHxslszkPZIJIQgkN


ECISNET103 (Server) Thu May 08 11:10:41 2008
Database: unknown, SERVER/process_packet
Invalid clumplet buffer structure: buffer end before end of
clumplet - clumplet too long


ECISNET103 (Server) Thu May 08 11:10:44 2008
*** DUMP ***


ECISNET103 (Server) Thu May 08 11:10:44 2008
Fatal exception during clumplet dump: Invalid clumplet buffer
structure: spb in service attach should begin with isc_spb_version1
or isc_spb_version


ECISNET103 (Server) Thu May 08 11:10:44 2008
Plain dump starting with offset 866:
HhBKbHEWiUILBPSOEGdyQcKswRiHbwbwtdyENDkHzfUScXQzJkfBMQawGtztrsdLOJQjqU
TSUOPYW


ECISNET103 (Server) Thu May 08 11:10:44 2008
*** DUMP ***


ECISNET103 (Server) Thu May 08 11:10:44 2008
Fatal exception during clumplet dump: Invalid clumplet buffer
structure: spb in service attach should begin with isc_spb_version1
or isc_spb_version


ECISNET103 (Server) Thu May 08 11:10:44 2008
Plain dump starting with offset 934:
PuDmTXDMMLmduhFdERearaBHvmSkkafKTWYxWsHseCcWkBPvFQTpoALCfuxBTYCNYonEbJ
clFqnNIzusNQCpJlQHuY


ECISNET103 (Server) Thu May 08 11:10:44 2008
Database: unknown, SERVER/process_packet
Invalid clumplet buffer structure: buffer end before end of
clumplet - clumplet too long


ECISNET103 (Server) Thu May 08 11:12:26 2008
INET/inet_error: read errno = 10054


Can you help me to understand where the problem is ?

thanks you by advance
stephane