The inability to connect to the Internet may be attributed to loose cables, conflicting IP addresses, firewall problems or being outside of a signal range. The router itself may be broken as well.
Unplugged cables are one of the most common reasons why people cannot connect to the Internet. Check to see if the cables are connected to the router before trying other measures, and make sure the router is turned on. The wireless setting on a laptop may have been turned off inadvertently.
Overheating or traffic problems may cause router malfunctions, and older routers may become defective. One sign of a broken router is the inability to get an IP address.
The problem may also be caused by IP addresses that are the same. Identical IP addresses prevent users from connecting online. Renewing an IP address solves this problem. Static IP addressees must be changed manually.
The router may be too far away from the access point. Interference between the Wi-Fi device is another likely cause. Users can either measure the signal of the Wi-Fi device or expand the range of the Wi-Fi.
Firewall complications occur when the software blocks desired Internet functions. Firewall malfunctions occur when Windows Firewall conflicts with third-party software. Switching off or removing recently installed firewalls may solve this problem.