# Unable to connect to db2 using Toad 3.1.1.488

**URL:** <https://forums.toadworld.com/t/unable-to-connect-to-db2-using-toad-3-1-1-488/7745>\
**Category:** Toad for IBM DB2\
**Created:** [May 11, 2010, 4:48pm UTC](https://forums.toadworld.com/t/unable-to-connect-to-db2-using-toad-3-1-1-488/7745 "2010-05-11T16:48:54Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![SrinivasanKP](https://avatars.discourse-cdn.com/v4/letter/s/e480ec/32.png) [@SrinivasanKP](https://forums.toadworld.com/u/SrinivasanKP)\
**Post date:** [May 11, 2010, 4:48pm UTC](https://forums.toadworld.com/t/unable-to-connect-to-db2-using-toad-3-1-1-488/7745/1 "2010-05-11T16:48:54Z")

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I am able to connect to a db2 database from the command Line processor.

But when I try to create a new connection in Toad, even though it picks up the database information from the db2 client, the correct id and password Give the error

System.Reflection.ReflectionTypeLoadException

Unable to load one or more of the requested types. Retrieve the LoaderExceptions property for more information.

Stack Trace:

at System.Windows.Forms.Control.MarshaledInvoke(Control caller, Delegate method, Object[] args, Boolean synchronous)

at System.Windows.Forms.Control.Invoke(Delegate method, Object[] args)

at System.Windows.Forms.Control.Invoke(Delegate method)

at Quest.Toad.Util.Facility.Load()

at Quest.Toad.Util.Facility.get\_ImplementationType()

at Quest.Toad.DB2.DB2Provider.CreateProviderConnection(ConnectMediator mediator)

at Quest.Toad.Db.Provider.BackgroundConnector.CreateBackgroundConnection()

in Toad for Db2 3.1.1.488 ( Higher version of this software does not even start on my desktop)

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**Author:** ![Helene](https://avatars.discourse-cdn.com/v4/letter/h/7993a0/32.png) [@Helene](https://forums.toadworld.com/u/Helene)\
**Post date:** [May 12, 2010, 9:07am UTC](https://forums.toadworld.com/t/unable-to-connect-to-db2-using-toad-3-1-1-488/7745/2 "2010-05-12T09:07:16Z")

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Hello,

Could you please forward a support bundle (Help-\>Support Bundle)? My first impression is that there is an issue with your .NET environment since the DB2 CLP does not leverage .NET and Toad for DB2 is a .NET based product. Also Toad for DB2 3.1.1 is very old at this point. I would be interested in more details of your experience with later versions of the product. What version of .NET do you have installed on your desktop?

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**Author:** ![dkinley\_218](https://avatars.discourse-cdn.com/v4/letter/d/13edae/32.png) [@dkinley\_218](https://forums.toadworld.com/u/dkinley_218)\
**Post date:** [August 4, 2010, 7:43pm UTC](https://forums.toadworld.com/t/unable-to-connect-to-db2-using-toad-3-1-1-488/7745/3 "2010-08-04T19:43:44Z")

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Hi,

I’m facing the same problem.  
Was there a solution to this?

Thanks,  
Darren

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<div class="post-metadata">

**Author:** ![SrinivasanKP](https://avatars.discourse-cdn.com/v4/letter/s/e480ec/32.png) [@SrinivasanKP](https://forums.toadworld.com/u/SrinivasanKP)\
**Post date:** [August 5, 2010, 3:23pm UTC](https://forums.toadworld.com/t/unable-to-connect-to-db2-using-toad-3-1-1-488/7745/4 "2010-08-05T15:23:26Z")

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Darren,  
Nope. None so far. I am not using toad for now.

Regards  
Srinivasan KP

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**Author:** ![randall.haehnel\_718](https://avatars.discourse-cdn.com/v4/letter/r/ecb155/32.png) [@randall.haehnel\_718](https://forums.toadworld.com/u/randall.haehnel_718)\
**Post date:** [August 5, 2010, 3:45pm UTC](https://forums.toadworld.com/t/unable-to-connect-to-db2-using-toad-3-1-1-488/7745/5 "2010-08-05T15:45:17Z")

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Please try upgrading to the latest version of Toad for DB2 and let us know if  
that version has corrected your issues.