If a Galaxy Z Flip5 or Z Flip6 will not join Wi-Fi or keeps dropping it, work through Samsung's Wi-Fi article in order: restart the phone, toggle Wi-Fi off and on, forget and re-add the network, check the router, then reset network settings. Wikipedia lists the Flip5 on Wi-Fi 6 (tri-band) and the Flip6 on Wi-Fi 6E, so a 6 GHz network is only visible to the Flip6. A foldable adds one wrinkle worth testing: signal read while the phone is half-folded in Flex mode or held in a tight case can differ from the same phone open and flat.
Differential
Likely causes of “Samsung Galaxy Z Flip6 and Flip5 family will not connect to Wi-Fi or keeps disconnecting”, and how to tell them apart
- 1
A temporary software fault
What separates it Wi-Fi fails right after an update or after days without a restart
How to confirm Restart with the power menu, or Side key plus Volume down, and try again
- 2
A stale or wrong saved network
What separates it Other devices connect, this one does not, or it says Saved but no internet
How to confirm Forget the network, then re enter the password, and reconnect
- 3
Router band or channel
What separates it The Flip5 sees 2.4 and 5 GHz but not a 6 GHz-only name
How to confirm Wikipedia lists Wi-Fi 6E only on the Flip6, so use 5 GHz for the Flip5
- 4
Signal blocked by the fold or a case
What separates it Signal is worse when the phone is half-folded or in a thick case
How to confirm Test open and flat, near the router, with the case off
- 5
Network settings that need resetting
What separates it Everything else on the phone works fine but Wi-Fi still fails to connect or stay connected
How to confirm Reset network settings after saving your Wi-Fi passwords
Before you touch a setting
Record this first — changing settings destroys the evidence
- The network name and band (2.4, 5 or 6 GHz), and whether other devices connect
- The exact message: wrong password, Saved, no internet, or the network not listed
- Whether the phone was open, folded or in Flex mode and whether a case was on
Try in this order
0 of 7 completedRestart the phone
ReversibleUse the Quick settings Power off, Restart, or hold Side key plus Volume down. This clears temporary faults, per Samsung.
Toggle Wi-Fi
ReversibleTurn Wi-Fi off and on in Quick settings, then try the network again, which clears a stuck connection without changing anything else.
Forget and re-add
ReversibleOpen Settings, Connections, Wi-Fi, choose the network, tap Forget, then join it again with the password typed carefully.
Test open and flat
ReversibleOpen the phone fully, take the case off and stand near the router. Wi-Fi in Flex mode or in a case may look weaker.
Check the band
ReversibleOn the Flip5, use a 2.4 or 5 GHz network; a router set to 6 GHz only will not show up. The Flip6 supports 6 GHz.
Restart the router
ReversibleUnplug the router for 30 seconds, then reconnect it and wait for the lights to settle before the phone tries again.
Reset network settings
ReversibleOpen Settings, General management, Reset, Reset network settings, after noting your saved passwords, since this clears saved Wi-Fi and Bluetooth pairings.
Model-specific
What is true of this model and not of its siblings
- Wi-Fi by model
- Z Flip5: Wi-Fi 802.11 a/b/g/n/ac/6, tri-band. Z Flip6: Wi-Fi 802.11 a/b/g/n/ac/6e, tri-band, Wi-Fi Direct, per Wikipedia. Only the Flip6 can join a 6 GHz network.
- Software and support
- Flip5 shipped on Android 13 with One UI 5.1.1 and Wikipedia records One UI 8.5 in May 2026. The Flip6 shipped on Android 14 with seven years of updates.
- Tools and supplies
- Your router's admin page or app, your Wi-Fi password and a second device for comparison. A dry towel or microfibre cloth helps keep the phone clean while testing.
- Repair cost
- Samsung's US list shows inner screen module repair at $319 for both models; a Wi-Fi hardware fault is quoted by Samsung after diagnosis, so no fixed price is stated.
- Other models this page answers
- These steps also fit the Galaxy Z Flip5.
Stop boundary
When this stops being a self-service repair
- !If other devices connect and the phone will not after a restart, a forgotten network and a network reset, run Samsung Members diagnostics and contact Samsung
- !If no network is seen anywhere, even with the phone open and flat, suspect the hardware and book a service visit
- !If your router is at fault (no device connects), contact your internet provider instead
Evidence ledger
Sources behind this answer
The full restart-to-diagnostics sequence.
Hinge cleaning, no object between the screens, water and dust ratings, the pre-installed inner film and magnets.
Flip5 battery, charging, chip, storage, IPX8 rating, Wi-Fi, cover screen and software support.
Flip6 battery, charging, chip, RAM, storage, IP48 rating, Wi-Fi 6E, cooling system and seven-year support.
Samsung's suggested US inner and outer screen prices for the Flip5 and Flip6.
Exact questions
Common questions
Which Wi-Fi standard does each Flip support?+
Wikipedia lists tri-band Wi-Fi 6 for the Z Flip5 and tri-band Wi-Fi 6E for the Z Flip6, so only the Flip6 can use the 6 GHz band.
Why can my Flip5 not see my 6 GHz network?+
It is not a 6E phone. Use a 5 GHz or 2.4 GHz name, or upgrade to a Wi-Fi 6E device.
Does folding the phone weaken Wi-Fi?+
Samsung does not say so. Test open and flat before concluding anything.
Will a network reset delete my data?+
No. It removes saved Wi-Fi networks, paired Bluetooth devices and mobile settings, so note the passwords first.
Wi-Fi is connected but there is no internet. What now?+
That points at the router or provider more than the phone. Test another device on the same network, then restart the router.
Can a case or accessory block Wi-Fi?+
A thick or metal-lined case can weaken any radio. Take it off for testing, and remember Samsung advises against adhesive accessories on the inner screen.
Does the cover screen have its own Wi-Fi?+
No. The phone has one Wi-Fi radio; the cover screen is just a second display.
How do I check my Wi-Fi speed?+
Run a speed test at the router, then again at a distance, with the phone open. A big gap shows a signal problem rather than a phone fault.
Could a repair fix a Wi-Fi fault?+
Only if the diagnostic shows a hardware fault. Samsung's US list shows repairs by screen; a Wi-Fi repair is quoted by Samsung.