If your Wi-Fi keeps saying connected but there is no internet, then starts working again later, the recurring pattern is an important clue. This is different from a connection that simply stops working and stays offline.
Your device may remain connected to the local Wi-Fi network while the path beyond it repeatedly fails and recovers. Alternatively, one computer may be losing usable network access even though every other device remains online.
With an intermittent problem, two questions become especially useful:
Which devices lose internet at the same time, and what temporarily restores it?
The answers can help separate a modem or NBN problem from a computer, Wi-Fi, mesh, DNS or local network fault.
Connected to Wi-Fi does not mean the whole connection is stable
A Wi-Fi connection and an internet connection are separate parts of the same path.
A typical home connection looks roughly like this:
Device -> Wi-Fi -> Router -> NBN or ISP -> Internet
Your laptop can remain successfully connected through the first part while something further along the path drops out.
That is why the Wi-Fi symbol may remain visible, the signal can still show several bars and Windows may continue reporting that the device is connected even though websites, email and other online services suddenly stop working.
When the internet later returns, that does not necessarily mean the problem has been fixed. One of the failing parts may simply have recovered temporarily.
The most useful test is what happens to other devices
The next time the problem occurs, check another device before restarting the modem or changing settings.
A phone is useful for this test, but make sure it is actually using the same Wi-Fi network. Mobile phones can silently fall back to 4G or 5G when Wi-Fi loses internet access, which can make the home connection appear healthier than it really is.
- π Every device loses internet together: Attention shifts toward the modem/router, WAN connection, NBN equipment, ISP service or another shared network component.
- π» Only one computer loses internet: The problem is more likely to involve that computer, its Wi-Fi adapter, network configuration, software or connection to the router.
- π± Some devices fail while others remain online: Wi-Fi compatibility, mesh behaviour, network addressing, a particular access point or device-specific configuration becomes more likely.
- π‘ Devices connected through one mesh node or extender fail: The problem may be between that node and the main router rather than between the device and Wi-Fi itself.
If phones, laptops and other devices repeatedly lose internet at the same time, see what to check when Wi-Fi is connected but there is no internet on any device.
What temporarily restores the internet is another important clue
Intermittent faults are easier to diagnose when you notice exactly what makes the connection start working again.
Different recovery patterns can point toward different parts of the network:
- π Restarting the modem/router restores internet: The router, its WAN connection or its relationship with the internet service deserves closer investigation.
- πΆ Turning Wi-Fi off and back on fixes one device: The problem may involve that device’s wireless adapter, saved connection, addressing or network software.
- π€ Restarting or waking the laptop restores it: A driver, adapter or power-management problem becomes more relevant.
- πΆ Moving to another room or nearer the main router fixes it: Wi-Fi coverage, roaming, an extender or mesh backhaul may be involved.
- β±οΈ Doing nothing and waiting restores it: A WAN, ISP, NBN, DNS, DHCP or unstable network-device problem may be recovering by itself.
These behaviours are clues rather than proof. For example, a router restart fixing the problem does not automatically mean the router is faulty. Restarting it also re-establishes several network services and its external connection at the same time.
If rebooting the modem only fixes it temporarily
A modem or router that needs to be restarted repeatedly should not simply become part of your daily routine.
A restart can clear a temporary software problem, reconnect the WAN service, restart DHCP or DNS functions and force other parts of the network to establish fresh connections.
That can make the internet work normally for several hours or days without identifying why it failed in the first place.
If you have already restarted the equipment and the internet keeps failing again, see what to check after restarting the modem or router has not solved the problem.
The useful question is no longer simply whether restarting works. It is why the network repeatedly reaches a state where restarting becomes necessary.
The modem or router can remain on Wi-Fi while losing internet
A modem/router does not have to fail completely.
Its wireless network can remain active while another function inside the device becomes unstable. Phones and computers may therefore remain associated with the Wi-Fi network while the router temporarily loses its external connection.
Possible router-side problems include:
- π An unstable WAN or internet connection.
- π§ Firmware or internal router software becoming unstable.
- π’ DHCP, DNS or routing functions intermittently failing.
- π A problematic cable, WAN port, power supply or hardware component.
- π‘οΈ Hardware that becomes unreliable after operating for a period of time.
If the whole household loses internet together while the Wi-Fi network itself remains visible, checking the modem/router and external connection is usually more productive than troubleshooting every computer separately.
NBN or WAN dropouts can look exactly like a Wi-Fi problem
An intermittent upstream connection can produce the same confusing symptom.
The modem/router continues creating the home Wi-Fi network, so devices remain connected locally, but its path to the internet disappears temporarily.
If possible, notice what the modem/router and any separate NBN equipment are doing while the internet is actually down. A change in connection, WAN, DSL, optical or status indicators at the same moment can be useful evidence.
It is also worth checking whether your internet provider reports an outage, but the absence of a reported outage does not prove your individual service is healthy.
If an upstream NBN or carrier fault is confirmed, the responsible provider ultimately needs to repair that fault. The challenge is first determining whether the failure is genuinely upstream or inside the home network.
DNS or DHCP problems can also come and go
Not every intermittent failure means the physical internet connection has disappeared.
DNS is responsible for translating names such as website addresses into the network addresses computers use. If DNS fails temporarily, the internet can appear unavailable even though part of the underlying connection is still functioning.
DHCP provides devices with network information such as their IP address and gateway. Problems with DHCP, conflicting addresses or incorrect network configuration can also produce intermittent connectivity.
The pattern matters here as well.
If every device experiences the same problem at the same time, a shared router-side DNS or DHCP problem becomes more plausible. If only one computer fails, investigate that device before changing settings across the entire network.
Changing every device to a different DNS service or manually assigning addresses may make diagnosis harder if the real fault has not yet been identified.
A laptop can lose internet while staying connected to Wi-Fi
If the recurring problem affects only one laptop or computer, the router and internet service may be working normally.
Possible computer-side causes include:
- πΆ A Wi-Fi adapter or driver becoming unstable.
- π Power-management behaviour affecting the wireless adapter after sleep or periods of inactivity.
- π’ Incorrect or unreliable IP, gateway or DHCP information.
- π Device-specific DNS configuration or software affecting name resolution.
- π‘οΈ VPN, proxy, firewall or security software interfering with network traffic.
- βοΈ Windows networking or saved Wi-Fi configuration becoming unreliable.
The timing can be particularly useful. A failure that repeatedly occurs after sleep, after the computer has been idle or after moving between access points is different from every device in the house losing internet simultaneously.
Mesh systems and extenders add another connection that can fail
Mesh Wi-Fi and wireless extenders can make intermittent problems more difficult to interpret because there is another link between your device and the main router.
For example:
Laptop -> Mesh node -> Main router -> Internet
Your laptop can have an excellent connection to the nearby mesh node while that node has a poor or unstable connection back to the rest of the network.
The result can be strong Wi-Fi bars but intermittent internet access.
Useful clues include the problem occurring mainly in one part of the house, devices becoming reliable when moved nearer the main router, or failures affecting devices connected through one particular node or extender.
That is why this article treats mesh and extender instability as part of the broader diagnostic problem rather than assuming the laptop itself is responsible.
What to check before restarting everything again
Intermittent faults often disappear before anyone can inspect them. A few observations made while the failure is happening can therefore be much more useful than immediately rebooting every piece of equipment.
- 1οΈβ£ Check another device. Determine whether the failure is individual or network-wide.
- 2οΈβ£ Confirm the device is still on Wi-Fi. Note whether the wireless connection itself disappeared or only the internet stopped.
- 3οΈβ£ Look at the modem, router and NBN equipment. Note any warning lights or status changes before restarting them.
- 4οΈβ£ Notice where the affected device is connected. Main router, mesh node, extender and guest networks can behave differently.
- 5οΈβ£ Note what restores service. Waiting, restarting the router, reconnecting Wi-Fi, rebooting one laptop or moving location provide different clues.
- 6οΈβ£ Look for a pattern. Time of day, sleep and wake, heavy network use or one particular area of the house may help reproduce the fault.
You do not need a detailed technical log. A few accurate observations can prevent a recurring problem from being treated as a completely new mystery each time it happens.
Do not factory-reset equipment just because the fault is intermittent
A factory reset is not a useful first response to a connection that comes and goes.
It can remove Wi-Fi names, passwords, ISP settings, mesh configuration and other information that was previously correct, while the original intermittent fault may remain.
- β οΈ Do not repeatedly factory-reset the modem or router without establishing what part of the connection is failing.
- β οΈ Do not change DNS, DHCP, Wi-Fi, firewall and adapter settings simultaneously.
- β οΈ Do not assume the modem is faulty merely because restarting it temporarily restores service.
- β οΈ Do not troubleshoot one laptop as though it caused a whole-house outage if every device fails together.
Intermittent problems are usually solved more effectively by narrowing the failing part of the network first and then changing only what the evidence supports.
Get help diagnosing a connection that keeps failing
If rebooting temporarily restores the internet but the problem keeps returning, PcRiot provides Wi-Fi and internet help in Perth to diagnose the underlying fault rather than repeatedly resetting equipment.
Depending on the symptoms, this can include checking the affected computers, modem/router, Wi-Fi configuration, DNS and DHCP, mesh or extender connections, cabling and the connection between your home equipment and the internet service.
Where the evidence points to an NBN, ISP or other upstream fault, PcRiot can also help identify that boundary so you know which part of the problem needs to be taken back to the provider.
Onsite help is available for homes and small businesses in Maylands and surrounding Perth suburbs.