ComException: HRESULT 0x800A1F45

Nevermind, solved it :o) The comport wasn't being explicitly closed after each connection.

Does anyone know why this error happens? I am trying to connect to a gsm modem using c# via mscomm to send a binary sms. The first time the connection goes fine, the message is sent etc, but if I then try to send a second or subsequent sms, it throws this error. Could anyone shed some light on this? Regards, Caid

bilnaad22y ago

I think this is page you should read. http://msdn.microsoft.com/msdnmag/issues/02/10/netserialcomm/ It also contains content about a GPS reseiver. I hope this is usefull