If an S22, S22+ or S22 Ultra will not join Wi-Fi or keeps dropping it, Samsung's sequence is: restart, update, confirm Wi-Fi is on, forget the network and rejoin, and test in Safe mode to see whether an app is at fault. Next, reset Wi-Fi and Bluetooth settings, then check the router: firmware, other devices, a power cycle. Samsung Members can test the phone's own radio. One model difference matters: Wikipedia lists dual-band Wi-Fi 6 on the S22 but tri-band Wi-Fi 6E on the S22+ and Ultra, so only the larger two can use a 6 GHz network.
Differential
Likely causes of “Samsung Galaxy S22 family will not connect to Wi-Fi or keeps disconnecting”, and how to tell them apart
- 1
A passing software fault
What separates it Wi-Fi breaks after a long run or update because of a passing software fault
How to confirm Restart from the power menu, or hold Side and Volume down for over 7 seconds if the menu will not open
- 2
Wi-Fi off, a bad password or a corrupted saved entry
What separates it The network shows but will not join, or joins without internet
How to confirm Enable Wi-Fi, forget the network and add it again
- 3
A recently added app
What separates it It is fine in Safe mode but broken in normal mode because of a recently added app
How to confirm Remove recent apps one at a time, newest first, restarting between
- 4
The router or its firmware
What separates it Other devices on the same network fail too, so the router or internet service is the likely cause
How to confirm Update the firmware, test other devices and power-cycle the router
- 5
A 6 GHz-only network on the base S22
What separates it The S22 misses a network the S22+ or Ultra can see
How to confirm Wikipedia lists no 6 GHz on the S22; enable a 5 GHz name on the router
Before you touch a setting
Record this first — changing settings destroys the evidence
- Which S22 model and the software version
- Whether other devices and other networks work, and which band this one uses
- The router brand, model and firmware
- The message: authentication problem, no internet or network missing
Try in this order
0 of 7 completedRestart
ReversibleSwipe down, tap Power off and Restart. If frozen, hold Side and Volume down over 7 seconds.
Update
ReversibleSettings, Software update, Check for updates. Data charges can apply if you update off Wi-Fi.
Forget and rejoin
ReversibleForget and rejoin, by opening Settings, Connections, Wi-Fi, long pressing the network, choosing Forget and entering the password again.
Try Safe mode
ReversibleLong-press Power off until Safe mode appears. If Wi-Fi is fine there, uninstall recent apps one by one.
Check the router
ReversibleConfirm current firmware, test another device and unplug the router briefly. If no device sees the network, call the router's maker.
Reset network settings
ReversibleReset network settings, by opening Settings, General management, Reset, Reset Wi-Fi and Bluetooth settings, then rejoining each network.
Run the radio test
ReversibleRun the radio test, in Samsung Members, Support, Get started, Wi-Fi test, and a reported fault means a service visit.
Model-specific
What is true of this model and not of its siblings
- Wi-Fi and Bluetooth
- Wikipedia: Wi-Fi 6 dual-band on the S22; Wi-Fi 6E tri-band on the S22+ and Ultra; Wi-Fi Direct and Bluetooth 5.2 on all three.
- Chips by region
- Exynos 2200 in Europe and Snapdragon 8 Gen 1 elsewhere; Samsung's Wi-Fi article covers all three phones alike.
- Part numbers
- Record the router's brand and model, since no part number is involved on the phone side. The phone's SM- model number is under Settings, About phone.
- Tools and supplies
- A second device on the network, the router's admin page and a flashlight for its label.
- Repair cost
- A Wi-Fi fault is rarely paid work. If the radio is faulty Samsung quotes it; its US screen-only prices are $174, $199 and $249.
- Other models this page answers
- These steps also fit the Galaxy S22.
Stop boundary
When this stops being a self-service repair
- !If it fails on every network after a reset and the Members test, visit a Samsung center
- !If it drops within a meter of a good router even in Safe mode, book a radio diagnostic
Evidence ledger
Sources behind this answer
Exact questions
Common questions
Does the S22 have Wi-Fi 6E?+
The S22+ and S22 Ultra do. The base S22 is dual-band Wi-Fi 6, and all three have Bluetooth 5.2 per Wikipedia.
Can the S22 use 6 GHz?+
Only the S22+ and Ultra can; the S22 uses 2.4 and 5 GHz.
How do I reset the network settings?+
Settings, General management, Reset, then the Wi-Fi and Bluetooth option.
Should the router be updated?+
Yes; Samsung lists router firmware and checking other devices as part of the diagnosis.
Does the reset touch my photos?+
No, only network and Bluetooth settings.
Can I update without Wi-Fi?+
Yes, over mobile data or with Smart Switch on a PC, though data charges may apply.
Is the S22 hardware limited on older routers?+
No. All three phones support the older 2.4 and 5 GHz bands, so an old router is not a reason for failure, though a router set to a 6 GHz-only name will be invisible to the base S22.
Why does Wi-Fi drop only in one room?+
Signal strength is the usual reason. Walls, floors and distance weaken it, and the phone may cling to a weak signal instead of moving to a stronger one. Move the router or add an access point, or test by standing next to the router.
Should I keep Wi-Fi and mobile data both on?+
Yes, normally. Android switches between them automatically, and turning mobile data off just to test can help you see whether the fault is the Wi-Fi link or the internet behind it.
Why does the phone say connected but nothing loads?+
That means the phone joined the router but the router has no working internet behind it, or a DNS or captive-portal problem is in the way. Test another device on the same network; if it also fails, restart the modem and router in that order and check the provider for an outage before resetting the phone.
How do I tell a phone fault from a router fault?+
Try the phone on a different network, such as a friend's router or a mobile hotspot, and try another device on your own network. If the phone works elsewhere, the router is the problem; if it fails everywhere and in Safe mode, the phone's radio is the more likely cause.