Maybe NAT router does not support UPnP function. Please check user’s manual of router and turn on UPnP function.
1. The traffic of the network and the object of the image affect the frame rate. The network congestion causes frame rate slower than the setting.
2. When more than one client were viewing, the frame rate becomes slower.
3. Ethernet switching hub can smooth the frame rate especially in viewing on the Multi-Camera screen.
The ICA-HM351 uses Category 5 UTP cable allowing 10 and/or 100 Base-T networking.
The device uses Category 5 UTP cable allowing 10 / 100 /1000 Base-TX networking within 100 meters.
Because of the 3G bandwidth, mobile device needs to take longer time to get response from camera. You can double check by watching camera response from CloudLync web.
Maybe too many IP cameras have been installed on the LAN, and then NAT router is out of resource to support more cameras. You could turn off and on NAT router to clear out-of-date information inside the router.
1. Your connection to the ICA-500 does not have enough bandwidth to support a higher frame rate for the streamed image size. Try reducing the video streaming size to 176x144 or 320x240 and/or disabling audio.
2. Audio will consume 32 to 64 kbps. Disable audio to improve video if your Internet connection may not have enough bandwidth to support streaming audio from the ICA-500.