It seems that you want to know if the Slingbox SOLO or the Slingbox PRO-HD will work with the Protek 9750 satellite receiver.
I have tracked down some information about the Protek 9750 satellite receiver and unfortunately it is not included on the supported devices list. This means that the Slingbox might not be able to control it. In this case, there are two options. First, check the supported devices list in order to know what devices are supported:
Secondly, if you decide to get this satellite receiver I recommend you then to check the following thread, provided by alanrichey42. However, we can not guarantee that it will work for you:
Hope this helps to make your decision!
In that case, I recommend you to run the Setup Assistant for Internet Viewing one more time and run the Manual Configuration mode. Since you have not included any information about you router, I encourage you to check the following links and follow the detailed steps:
If these articles are not useful for you, make sure to reply to this post and include the specific make and model of your router.
Hope this helps!