Most common problem

Computer Hardware and Networking

• Computer desktop/laptop no display issue?
  You can carefully open a cabinet case and just detach the ram stick from ram slot and clean gently using an eraser and put it again the ram slot.
• Computer desktop or laptop startup time BIOS error ?
  You can goto BIOS setup likely pressing the Del key, F10, F2 or other device specific key (check model). Then set date/time, save, and choose 'Load Optimized Defaults' or similar, save and exit.
• Computer desktop or laptop windows blue screen error ?
  Mostly problem comming from RAM module if dusty or RAM knoch cover with sulfer, clean and put it again in RAM slot hope your issue canbe resolve. secondly trying to repair your windows using bootable CD/DVD or USB drive.

Common problems — Surveillance

• CCTV camera video blur / poor image?
  First check connectors (DC, BNC) and cable continuity. Re-seat connectors and reduce long cable runs. Verify camera power supply at 12V and ensure proper earthing. If using HD analog systems, check transmission modules or baluns.
• NVR camera "host not found" or IP issues?
  Check device list for IP duplicates, ensure cameras are on the same subnet, test cables with a LAN tester and re-crimp if needed. Adjust camera IPs or use DHCP reservation on the router/NVR.