The S24 is where Samsung's Wi-Fi 7 troubles are best documented, because owners with Wi-Fi 7 routers have been comparing notes on its community forums since the phone launched. Three recurring reports are worth knowing before you change anything. First, the phone connects to a Wi-Fi 7 router, then drops with a no-internet message after a while, particularly on the widest 320 MHz channel. Second, after the One UI 7 update at least one owner found the link had fallen back from Wi-Fi 7 to Wi-Fi 6. Third, after the Android 16 update owners reported strange upload speeds on Wi-Fi 7 with normal download speeds. Each of these is fixed or worked around on the router first, so that is where this page starts.
Differential
Likely causes of “Samsung Galaxy S24 will not connect to Wi-Fi or keeps disconnecting”, and how to tell them apart
- 1
The router's 320 MHz channel width
What separates it The S24 connects and then drops after minutes or hours with Connected, no internet, while other devices stay up
How to confirm In the router's wireless settings set the 6 GHz or 5 GHz channel width to 160 MHz or 80 MHz and rejoin from the S24
- 2
Intelligent Wi-Fi's real-time data setting
What separates it The link stalls during a call or video and recovers on its own
How to confirm Wi-Fi, three dots, Intelligent Wi-Fi: switch off Prioritize real time data and the automatic switch to mobile data
- 3
A software update that changed the Wi-Fi driver
What separates it The phone joined Wi-Fi 7 before One UI 7 or Android 16 and now joins Wi-Fi 6, or uploads crawl while downloads are fine
How to confirm Install the newest patch, restart the router, and forget and rejoin so the phone negotiates the connection again
- 4
Random MAC address and a router that filters devices
What separates it A guest or work network accepts other phones and not this one
How to confirm Set MAC address type to Phone MAC in the network's Advanced options and rejoin
- 5
A router firmware that is behind the phone
What separates it Only the S24 misbehaves on a new router that is still on its first firmware
How to confirm Update the router and compare again before changing anything else on the phone
Before you touch a setting
Record this first — changing settings destroys the evidence
- The router make and model and the width of the channel it is using
- Whether it fails on 5 GHz, on 6 GHz or on both
- Whether the fault began after One UI 7 or the Android 16 update, and the date
- Download and upload speeds measured side by side with a laptop
Try in this order
0 of 6 completedNarrow the channel on the router
ReversibleIn the router's admin page set the channel width to 160 MHz, or 80 MHz, instead of 320 MHz and save. Owners of the S24 family on Samsung's forums tie the drops to the widest channel.
Switch off the aggressive options on the phone
ReversibleOpen Wi-Fi, three dots, Intelligent Wi-Fi, and turn off Prioritize real time data, Switch to mobile data and Auto switch between Wi-Fi networks.
Forget the network and rejoin
ReversibleTap the gear beside the network, choose Forget, then join again with the password typed fresh so the phone renegotiates the link.
Compare download and upload together
ReversibleRun a speed test on the S24 and on a laptop in the same spot. If downloads match and uploads are poor, you are seeing the upload problem owners reported after Android 16, and the next patch is the fix.
Update the router firmware
ReversibleNew Wi-Fi 7 routers have received firmware that fixes stability; update before you decide the phone is at fault.
Reset network settings last
Reset / data riskSettings, General management, Reset, Reset network settings.
Model-specific
What is true of this model and not of its siblings
- The S24's Wi-Fi hardware
- Wi-Fi 7 hardware with 6 GHz support on a Snapdragon or Exynos platform; the driver is tuned for stability, so some owners see lower peak speeds than the router advertises.
- What to report
- If a drop returns after the router change, send a Samsung Members error report with the router model, the channel width and the time of the drop.
Stop boundary
When this stops being a self-service repair
- !If the S24 drops on a Wi-Fi 6 router as well as a Wi-Fi 7 one, report it through Samsung Members with the speed test results
- !If every network fails in Safe mode and after Reset network settings, book a Samsung hardware check
- !If only the new router misbehaves, the router maker is the right call
Evidence ledger
Sources behind this answer
Samsung's Wi-Fi checklist.
An S24 owner whose link fell back to Wi-Fi 6 after One UI 7.
Reports of poor upload speed on Wi-Fi 7 after the Android 16 update.
Per-model battery, charging, chip, display, storage and update promise for the S24, S24+ and S24 Ultra.
Exact questions
Common questions
Why does my Galaxy S24 drop off my Wi-Fi 7 router?+
Owners on Samsung's forums report drops on Wi-Fi 7 routers, often on the 320 MHz channel. Setting the router's channel width to 160 MHz or 80 MHz is the most commonly reported fix.
Why is my S24 uploading slowly on Wi-Fi 7 but downloading fine?+
Owners reported this after the Android 16 update. Compare with a laptop; if only the S24 is slow on upload, wait for a patch and report it through Samsung Members.
Did One UI 7 take my S24 from Wi-Fi 7 down to Wi-Fi 6?+
At least one owner reported that. Forgetting the network, restarting the router and rejoining often lets the phone negotiate Wi-Fi 7 again.
What does Prioritize real time data do?+
It is an Intelligent Wi-Fi option that favors low latency for calls and games and can make the phone drop a working network; turning it off is a common test.