A 5G router that powers on, shows signal, but never pulls an IP address feels like a hardware failure. It almost never is. A 5G router that won't get an IP address is nearly always a SIM, APN, or PIN problem, three things you can check yourself in a few minutes before you ever consider the device faulty. Confirm the SIM is active, the APN is correct, and the PIN is sorted, and connection usually follows.

Quick Answer

If your 5G router shows an IP of 0.0.0.0 or no IP at all, the SIM is not authenticating onto the network. Check that the SIM is active with your provider, enter the correct APN for your network, and make sure the SIM PIN is not blocking the connection. Hardware faults are rare by comparison.

Confirm The SIM Is Active First

An IP address of 0.0.0.0 in the router's status page means it has not connected to the mobile network, full stop. Before touching settings, rule out the simplest cause: the SIM itself. A brand-new SIM may not be activated yet, a data-only SIM may not be provisioned for the router, and an account issue can quietly block authentication.

The quick test is to pop the same SIM into a phone. If the phone gets mobile data, the SIM and account are fine and the problem is in the router's configuration. If the phone also fails, the issue is with the SIM or your provider, and a call to them is the next step rather than fiddling with the router.

Set The Correct APN

The APN, or access point name, is the setting that tells the router how to reach your provider's data network. If it is blank, wrong, or carried over from a different network, the router can sit there with full signal bars and still never connect. This is one of the most common causes in South Africa specifically: signal present, but no working data because the APN does not match the SIM.

In the router's admin page, look under the mobile or dial-up network settings for the APN profile. Some routers auto-detect it, but many do not, especially with a SIM from a different provider than the router shipped with. If you are unsure of the exact APN to enter, your provider publishes it and will confirm it on request. Enter it manually, save, and let the router re-establish the connection. To compare devices that handle SA networks cleanly, the networking range at Evetech is a good place to start.

Sort Out The SIM PIN

A SIM with PIN protection enabled will refuse to authenticate until the PIN is entered, and a router with nowhere to enter it simply fails to connect. Check the router's PIN management settings and enter the SIM's PIN, or disable PIN protection on the SIM beforehand using a phone.

One serious warning: do not keep guessing the PIN. After a few wrong attempts the SIM locks and demands a PUK code, and too many wrong PUK entries can render the SIM permanently dead. If you are unsure of the PIN, get it from your provider rather than guessing.

When To Look Further

If the SIM is active, the APN is correct, and the PIN is handled, but you still have no IP, a few extra checks help. Set the network mode to 5G or auto and the band selection to automatic so the router is not stuck hunting a band that is not present. Update the router's firmware, as older firmware sometimes mishandles newer network configurations. As a last resort, setting the DNS manually to a reliable public option can resolve a router that connects but cannot browse. Only once all of this is exhausted is a genuine hardware fault likely. Spare cables and adapters to support a clean install sit in the best-selling accessories at Evetech.

Frequently Asked Questions

What does an IP address of 0.0.0.0 mean on my 5G router?

It means the router has not authenticated onto the mobile network. The SIM is not connecting, usually because of an inactive SIM, a wrong APN, or a PIN that is blocking it, rather than a hardware fault.

Why does my router show signal but no internet?

Strong signal with no data almost always points to an APN that is missing or incorrect for your network. Enter the correct APN for your provider and the connection typically comes up.

How do I know if the problem is the SIM or the router?

Put the SIM in a phone. If the phone gets data, the SIM and account are fine and the fault is in the router's settings. If the phone fails too, the SIM or provider is the issue.

What happens if I enter the wrong SIM PIN too many times?

The SIM locks and requires a PUK code, and repeated wrong PUK entries can permanently disable the SIM. Get the correct PIN or PUK from your provider rather than guessing.

Most 5G connection problems are configuration, not hardware. Explore the networking range at Evetech to find a 5G router that pairs cleanly with your SA SIM and network.