01-16-2013 08:37 AM
The boundary we use in the Push Service SDK is made up of 20 random alpha numeric characters.
What version of the OS are you using? (Are you developing this for BlackBerry 10 or an older version of the BlackBerry OS?) Are you using your own app that you wrote or a sample one that we provided?
If the push isn't arriving, then it could either be a registration issue or how you're listening for the push.
02-27-2013 05:04 AM
If you want to see some existing implementations of a C# server you can look at Zen C# BlackBerry Push Service SDK: http://blackberrypushsdk.codeplex.com/
I have also created a (crude) port of this into the PushSharp framework here: https://github.com/ngoossens/PushSharp
Hope it helps.