194 There is no media player. No DXB8.1 or higher graphic acceleration software. There is no DivX503Bundle.exe control when you play the file transformed to AVIvia media player. No DivX503Bundle.exe or ffdshow-2004 1012 .exe in Windows XP OS.22. Forget local menu operation password or network passwordPlease contact your local service engineer or our sales person for help. We can guide youto solve this problem.23. When I login via HTTPS, a dialogue says the certificate for this website is forother address.Please follow chapter 5.8.2.12.1 to create server certificate.24. When I login via HTTPS, a dialogue says the certificate is not trusted.Please follow chapter 5.8.2.12.2 to download root certificate.25. When I login via HTTPS, a dialogue says the certificate has expired or is notvalid yet.Please make sure your PC time is the same as the device time.26. I connect the general analog camera to the device, there is no video output.There are following possibilities: Check camera power supplying, data cable connection and etc. This series device does not support the analog camera of all brands. Pleasemake sure the device supports general standard definition analog camera.27. I connect the standard definition analog camera or the HDCVI camera to thedevice, there is no video output.There are following possibilities: Check camera power supplying, or camera data cable connection. For the product supports analog standard definition camera/HD camera, youneed to go to the main menu->Setting->Camera->Channel type to selectcorresponding channel type and then restart the DVR.28. DDNS registration failed or cannot access the device domain name.There are following possibilities: Check the device is connected to the WAN. Please check the device has got theIP address if the PPPoE can dial. If there is a router, please check the router tomake sure the device IP is online. Check the corresponding protocol of the DDNS is enabled. Check the DDNSfunction is OK or not.