Can I use the SQL Management studio even, but not on kettle, submitted to the following error, can't find out the reason, want to ask how to solve,

Error connecting to the database [BranchConnection] : org. Pentaho. Di. Core. Exception. KettleDatabaseException:
Error occurred while trying to connect to the database

Error connecting to the database: (using the class net. Sourceforge. JTDS. JDBC. Driver)
The I/O Error: DB server closed the connection.


Org. Pentaho. Di. Core. Exception. KettleDatabaseException:
Error occurred while trying to connect to the database

Error connecting to the database: (using the class net. Sourceforge. JTDS. JDBC. Driver)
The I/O Error: DB server closed the connection.


The at org. Pentaho. Di. Core. The database. Database. NormalConnect (472). The database Java:
The at org. Pentaho. Di. Core. The database. The database. The connect (370). The database Java:
The at org. Pentaho. Di. Core. The database. The database. The connect (341). The database Java:
The at org. Pentaho. Di. Core. The database. The database. The connect (331). The database Java:
The at org. Pentaho. Di. Core. Database. DatabaseFactory. GetConnectionTestReport (DatabaseFactory. Java: 80)
The at org. Pentaho. Di. Core. Database. DatabaseMeta. TestConnection (DatabaseMeta. Java: 2783)
The at org. Pentaho. UI. Database. The event. The DataHandler. TestDatabaseConnection (DataHandler. Java: 597)
At sun. Reflect. NativeMethodAccessorImpl. Invoke0 (Native Method)
At sun. Reflect. NativeMethodAccessorImpl. Invoke (Unknown Source)
At sun. Reflect. DelegatingMethodAccessorImpl. Invoke (Unknown Source)
The at Java. Lang. Reflect. Method. Invoke (Unknown Source)
The at org. Pentaho. UI. Xul. Impl. AbstractXulDomContainer. Invoke (AbstractXulDomContainer. Java: 313)
The at org. Pentaho. UI. Xul. Impl. AbstractXulComponent. Invoke (AbstractXulComponent. Java: 157)
The at org. Pentaho. UI. Xul. Impl. AbstractXulComponent. Invoke (AbstractXulComponent. Java: 141)
The at org. Pentaho. UI. Xul. SWT. Tags. SwtButton. Access the $500 (43) SwtButton. Java:
The at org. Pentaho. UI. Xul. SWT. Tags. SwtButton $4. The widgetSelected (SwtButton. Java: 137)
At org. Eclipse SWT. Widgets. TypedListener. HandleEvent (Unknown Source)
At org. Eclipse SWT. Widgets. EventTable. Adds (Unknown Source)
At org. Eclipse SWT. Widgets. Display. Adds (Unknown Source)
At org. Eclipse SWT. Widgets. A Widget. Adds (Unknown Source)
At org. Eclipse SWT. Widgets. Display. RunDeferredEvents (Unknown Source)
At org. Eclipse SWT. Widgets. Display. ReadAndDispatch (Unknown Source)
At org. Eclipse jface. Window. Window. RunEventLoop (820) the window. The Java:
At org. Eclipse jface. Window. The window. The open (796) the window. The Java:
At org. Pentaho. Di. UI. Xul. KettleDialog. Show (80) KettleDialog. Java:
The at org. Pentaho. Di. UI. Xul. KettleDialog. Show (KettleDialog. Java: 47)
At org. Pentaho. Di. UI. Core. Database. Dialog. XulDatabaseDialog. Open (116) XulDatabaseDialog. Java:
At org. Pentaho. Di. UI. Core. Database. Dialog. DatabaseDialog. Open (60) DatabaseDialog. Java:
The at org. Pentaho. Di. UI. Spoon. Delegates. SpoonDBDelegate. EditConnection (SpoonDBDelegate. Java: 96)
At org. Pentaho. Di. UI. Spoon. The spoon. DoubleClickedInTree (3108) spoon. Java:
At org. Pentaho. Di. UI. Spoon. The spoon. DoubleClickedInTree (3043) spoon. Java:
At org. Pentaho. Di. UI. Spoon. The spoon. Access the $2300 (361) spoon. Java:
At org. Pentaho. Di. UI. Spoon. The spoon $26. The widgetDefaultSelected (6184) spoon. Java:
At org. Eclipse SWT. Widgets. TypedListener. HandleEvent (Unknown Source)
At org. Eclipse SWT. Widgets. EventTable. Adds (Unknown Source)
At org. Eclipse SWT. Widgets. Display. Adds (Unknown Source)
At org. Eclipse SWT. Widgets. A Widget. Adds (Unknown Source)
At org. Eclipse SWT. Widgets. Display. RunDeferredEvents (Unknown Source)
At org. Eclipse SWT. Widgets. Display. ReadAndDispatch (Unknown Source)
At org. Pentaho. Di. UI. Spoon. The spoon. ReadAndDispatch (1366) spoon. Java:
At org. Pentaho. Di. UI. Spoon. The spoon. WaitForDispose (8022) spoon. Java:
At org. Pentaho. Di. UI. Spoon. The spoon. Start (9277) spoon. Java:
At org. Pentaho. Di. UI. Spoon. The spoon. The main (692) spoon. Java:
At sun. Reflect. NativeMethodAccessorImpl. Invoke0 (Native Method)
At sun. Reflect. NativeMethodAccessorImpl. Invoke (Unknown Source)
At sun. Reflect. DelegatingMethodAccessorImpl. Invoke (Unknown Source)
The at Java. Lang. Reflect. Method. Invoke (Unknown Source)
At org.pentaho.com mons. The launcher. The launcher. The main (92). The launcher Java:
Under Caused by: org. Pentaho. Di. Core. Exception. KettleDatabaseException:
Error connecting to the database: (using the class net. Sourceforge. JTDS. JDBC. Driver)
The I/O Error: DB server closed the connection.

The at org. Pentaho. Di. Core. The database. Database. ConnectUsingClass (585). The database Java:
The at org. Pentaho. Di. Core. The database. Database. NormalConnect (456). The database Java:
. 47 more
Under Caused by: Java. SQL. SQLException: I/O Error: DB server closed the connection.
At net. Sourceforge. JTDS. JDBC. TdsCore. NextToken (TdsCore. Java: 2481)
At net. Sourceforge. JTDS. JDBC. TdsCore. Login (TdsCore. Java: 632)
At net. Sourceforge. JTDS. JDBC. JtdsConnection. & lt; init> (JtdsConnection. Java: 371)
At net. Sourceforge. JTDS.. JDBC Driver. Connect (184) Driver. Java:
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