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Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →A Wi-Fi drop that lands at the same time every day is a strong clue, but the clock alone does not clear your router. Several documented mechanisms run on a schedule: a router set to reboot at a fixed time, a router that changes channels after radar detection, a Windows adapter that powers down to save energy, and a provider-side problem that recurs at the same hour. Each one leaves a different trail. The fastest way forward is to work out whether one device or every device is affected, and whether Wi-Fi itself disconnects or stays connected while the internet stops responding.
Start with two questions: which devices, and which layer
Most “Wi-Fi is down” reports mix up two separate states. Your device can be connected to the Wi-Fi network and still have no internet access, or it can lose the Wi-Fi connection entirely. Microsoft’s Windows guidance treats these as different failures, and the difference matters because it points to different parts of the path. A PC can still reach the router when the modem or the internet service is the actual problem.
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Before you change any setting, answer these two questions during the next outage:
- Scope: Does one device drop, or do all of them drop at once? A single device points toward that device’s settings. Every device dropping together points toward the shared equipment, the power supply, or the provider.
- Layer: Does the device still show Wi-Fi as connected while apps report no internet, or does the Wi-Fi icon disappear?
Log the pattern before you test anything
The same-time pattern is only useful if you can prove it. For at least three or four occurrences, write down the local clock time, how long the outage lasted, which devices were affected, and what the router’s status lights were doing. Also note whether the Wi-Fi icon stayed connected. A notes app or a spreadsheet is enough. Timing alone cannot tell you the cause, but a consistent log gives you something specific to compare against the explanations below and gives your provider something concrete if you call them.
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Four mechanisms that run on a clock
1. A scheduled router reboot
Some routers can be told to restart at a set time on set days. ASUS documents this as a reboot scheduler on supported models, and its examples state that the network is disconnected for roughly 1 to 3 minutes during the reboot, with the exact duration varying by model. If your outage lasts about that long and starts at the same minute each day, check the router’s administration page or app for a scheduled reboot or time-based setting. The menu name and location differ by brand, model and firmware, so look under system, administration or maintenance settings. If you find a reboot schedule you did not set up yourself, it may have been enabled by a previous owner, a setup wizard, or a firmware default.
2. Radar-triggered channel changes on DFS channels
On 5 GHz, many channels are shared with weather and aviation radar, and routers using these Dynamic Frequency Selection (DFS) channels must vacate a channel when radar is detected. ASUS Support’s DFS explainer, last updated on 2024-12-13, quotes its own router documentation: this behavior “will cause connected WiFi clients to be disconnected from the network for a period of time before re-connecting to a different channel.” ASUS also says the channel availability check that follows can take 1 to 10 minutes depending on country, and that the 2.4 GHz band may stay available while 5 GHz is being checked.
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The sign to look for is that only 5 GHz devices drop, that they reconnect on their own, and that the router’s event or system log shows channel changes at the time of the outage. Radar events are not a daily schedule, so a truly daily pattern makes DFS less likely unless something in your location triggers detection at the same time each day. Treat DFS as one candidate to rule in or out, not as the answer.
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3. Windows adapter power saving
If one Windows PC drops at the same time each day and no other device is affected, its Wi-Fi adapter is a strong suspect. Microsoft recommends turning off the power-management option that lets the computer switch off the Wi-Fi adapter to save power. To check it:
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- Right-click the Start button and select Device Manager.
- Expand Network adapters and double-click your Wi-Fi adapter (the name usually includes “Wireless” or “Wi-Fi”).
- Open the Power Management tab.
- Clear the checkbox labelled Allow the computer to turn off this device to save power, then select OK.
- Restart the PC and watch the next occurrence of the outage.
A power-saving setting does not usually run on a fixed clock by itself, so this fix can explain a drop that looks scheduled only if the PC sleeps, idles or switches power state at a predictable time, for example when a timed task or a sleep schedule runs. If the drop continues after this change, the adapter setting is probably not the whole story.
4. A recurring provider-side problem
If every device loses internet at the same hour, and the router itself is not rebooting, the modem, the provider’s network, or a shared power event may be responsible. Google’s guidance for its mesh Wi-Fi products says that ISP service affects all devices, and it advises contacting the provider about recurring problems. Ask the provider whether they can see a repeated issue on your line at that hour, and give them your log. Providers can see line and equipment data that you cannot, which makes your timestamps valuable to them.
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Narrow it down with a short test sequence
Step 1: Compare devices
During the next outage, check a second phone, tablet or laptop on the same network. If it keeps working, the problem is device-specific and you should focus on that device’s adapter, power and background tasks. If everything drops, move on to the router and modem.
Step 2: Check whether the device can reach the router
On Windows, open Command Prompt and run ipconfig. Note the address listed as Default Gateway, then run ping followed by that address (for example, ping 192.168.1.1, if that is your gateway). Microsoft describes this check as a way to see whether the device can reach the router. A successful reply means the device is still talking to the router, so the fault is more likely beyond the router. A failed reply points to the local Wi-Fi or router path. Run the same command during an outage and again when things work, so you can compare.
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Step 3: Run a direct Ethernet comparison
Plug the affected computer into the modem or router with an Ethernet cable and test whether the internet works. Microsoft’s guidance says that if the internet works over Ethernet while Wi-Fi does not, the Wi-Fi router is implicated in that situation. The reverse result is less conclusive: if the internet fails over Ethernet too, the problem sits upstream of Wi-Fi, but the wired test does not by itself identify whether the cause is the modem, the line or the provider. Run the wired test during an outage if you can, since a test at a quiet hour proves little about a recurring problem.
Match what you see to a likely cause
| What you observe | What it points toward | Next step |
|---|---|---|
| Only one Windows PC drops, at the same time each day | That device’s Wi-Fi adapter power settings or a scheduled task on that PC | Clear the power-saving checkbox, then watch the next outage |
| Every device drops for about 1 to 3 minutes, and a reboot schedule is enabled | Scheduled router reboot | Find the schedule in the router’s settings and check whether it matches the outage time |
| Only 5 GHz devices drop and reconnect on their own, and the router log shows channel changes | Radar-triggered DFS channel change | Check whether the router uses DFS channels and whether the log records channel changes at the outage time |
| Devices stay on Wi-Fi, the gateway ping succeeds, but internet access fails | Modem, line, or provider | Test over Ethernet to the modem and contact the provider with your log |
| Devices lose Wi-Fi, the gateway ping fails, and Ethernet also fails at the same time | Shared power event, modem, or provider | Check the modem and router lights during the outage and report the timing to the provider |
What the evidence does not establish
The official support pages cited here describe how these mechanisms work. None of them report how often a daily same-time drop is caused by any particular mechanism, and no source in this set quantifies how common this symptom is. A single observed timing match is therefore a lead to investigate, not a diagnosis. Your router may be fine, the outage may come from the provider, and a device setting may be the trigger. Each of these can produce the same clock pattern, which is why the scope and layer checks matter more than the time itself.
What to tell your provider
When you call, give the exact times of the last several outages, the duration of each, whether the router’s lights changed, whether a ping to the gateway succeeded, and the result of any Ethernet test. Ask the provider whether they see a recurring fault on your line at that hour. Clear, timestamped evidence gets faster attention than a general complaint that the connection “drops sometimes.”
The Bottom Line
A daily same-time drop does not prove your router is innocent, and it does not prove it is guilty. Use the outage to separate the cases: one device or all of them, Wi-Fi lost or only internet lost, and whether a reboot schedule or DFS channel change lines up with the clock. The sequence above will usually show which layer is failing, and the log you keep is what will convince a provider to look.
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