No internet connection: method call into another dll takes more than 15 seconds

Question

I'm facing the following issue I just can't explain:

I have two dlls (DllA and DllB). When I call the first time from DllA into Dllb "ObjectFromB.aMethod()" everything works fine and fast. However, when I call another method from DllA in DllB "ObjectFromB.anotherMethod()" it takes more than 15 seconds!! I can't figure out why... Except the method/signature everything is exactly the same (same thread, same objects, same assemblies, same call stack (until there) and then two only distinct methods/signatures (into the same object)).

Important: The issue happens only if I don't have internet connection!

Answer 1

I found the reason of my issue:

Some DLLs I've been using are signed binaries. anotherMethod() contains a type in its signature from another DLL (DllC). Unfortunatley it couldn't authenticate this DLL because of the missing Internet connection. A solution/workaround can be found here:

http://support.microsoft.com/kb/936707/en-us