Thank you for using our Community. To answer your questions it is not normal to have freezing video although, wireless network connections are known to fluctuate through out the day. It may be necessary to port forward the router on your home network.The ideal port to use is 5201 and you'll want to enable TCP for optimal connection. Here are some helpful articles that should explain what is going on and how to fix it, please feel free to check them out:
- Slingbox.com - What's port forwarding/port mapping?
- Slingbox.com - Why am I not getting better video quality?
Hope this helps!!
Sling Media Moderation Team