Link>
Welcome!- What Hardware version is your DCS? Look at the sticker behind or under the camera.
- Link>What Firmware version is currently loaded? Found on the DCSs web page under status.
- What region are you located?
What Mfr and model is the main host router?
What wireless modes are you using?
What is the distance between the Camera and the main host router?
Is the camera getting an IP address from the main host router?
Are you connecting to the cameras IP address using a web browser?
Test cameras with uPnP and uPnP Port Forwarding both enabled on ALL cameras:
DCS Cloud (L) Series Camera Configuration and Mydlink.comEverytime I installed it in wireless, it always says error.. Ive done resetting the camera.. Please Help!! Thanks! 
my friend experimentally configured it without using lan cable. now it cannot be configured thru wireless. is it any bugged or something?