How to Fix “Ping Works but No Internet” Issues: IP Conflict, DHCP & Device Solutions

Reason 1: IP Conflict

When two devices share the same IP address, the network becomes unstable; ping may succeed intermittently, but some devices cannot access the internet. This commonly occurs in larger surveillance or office networks.

Solution:

Open the Run dialog (Start → Run) and execute ipconfig /release to release the current IP address.

Run ipconfig /renew to request a new address from the DHCP server.

After releasing, the network disconnects briefly; after renewing, a new IP is assigned and connectivity is restored.

Reason 2: No Fixed IP (Dynamic DHCP)

Most environments use automatic IP allocation via DHCP, making it difficult to pinpoint which device is causing issues because IPs change frequently.

To bind a specific IP address to a MAC address:

Open a command prompt and run ipconfig /all to view current IP and MAC information.

Use the ARP command to create a static binding, e.g., arp -s 10.168.1.143 36-F3-9A-2B-9E-13.

Verify the binding with arp -a. The gateway address (10.168.1.143) should now be associated with the specified MAC address, preventing other devices from hijacking it.

Reason 3: Network Equipment Problems

Even if ping works, devices may still fail to access the internet or experience latency due to inadequate or mismatched switches and routers.

Overloaded switches cannot handle the traffic load.

Switches lacking sufficient backplane bandwidth or using low‑end models cause bottlenecks.

Aging network hardware may have reduced performance.

Addressing these hardware issues improves overall network stability.