subsonic - mysql too many connections - too many sleeping threads? -

i getting error mysql database

error connecting: timeout expired.  timeout period elapsed prior obtaining connection pool.  may have occurred because pooled connections in use , max pool size reached. 

i have website , console application talking database dont have 100 concurrent connections! did showprocesslist query , found 10 connections command of sleep , time of 16000 seconds. there wasn't 100 connections.

i using subsonic data provider talk database , believe closes database connections , doesnt leave them hanging isn't culprit.

i restarted mysql server , console application talks database , seems working ok naturally can't have either console/website application crashing this. looking @ error log error seems coming

please advice on can find out going on , how can fix it

edit: have looked more , appears subsonic/mysql issue. have tried recommended fix in link below closing connection in block nothing closes connection...

   dim sp storedprocedure = sps.getlastgpsdataforallvehicles(customerid)             dim reader idatareader             try                 reader = sp.getreader                 mybase.load(reader)             catch ex exception                             reader.dispose()                 reader = nothing                 sp.command.todbcommand().connection.close()              end try 

i have no idea how force connection close.

thanks lot