Maybe too many IP cameras have been installed on the LAN, and then NAT router is out of resource to support more cameras. You can turn off and on NAT router to clear out date information inside router.
Maybe NAT router does not support UPnP function. Please check user’s manual of router and turn on UPnP function.
Go to C:\Windows\Downloaded Program Files and check to see if there is an entry for the file "IPCamera Control". The status column should show "Installed". If the file is not listed, make sure your Security Settings in Internet Explorer are configured properly and then try reloading the device’s home page. Most likely, the ActiveX control did not download and install correctly. Check your Internet Explorer security settings and then close and restart Internet Explorer. Try to browse and log in again.
Maybe too many IP cameras have been installed on the LAN, and then NAT router is out of resource to support more cameras. You can turn off and on the NAT router to clear out of date information inside router.
Please follow the steps below:
1) Default Gateway and DNS server address should be set up correctly.
2) If FTP does not work properly, ask your ISP or network administrator about the transferring mode of FTP server
Set up the IE security settings or configure the individual settings to allow downloading and scripting of ActiveX controls.
Users can rotate the black ring on the lens to adjust the focus.