REPRODUCIBILITY: 100% (always)
OSVERSION: 5.0.0.61
HARDWARE: Reeder S19 Max Pro S - s19mps - s19mps - 1.0.0.44 - aarch64
UI LANGUAGE: English (UK) (user: en_GB, os: en_GB.utf8)
REGRESSION: maybe? (since: 5.0.0.(55, probably) - aarch64)
(Edit 2025-02-26: Restructured; added more results, comments, and screenshots
Edit 2025-03-07: Comment about reduced time for connecting with WiFi7 disabled, minor edits.)
DESCRIPTION:
Connecting to Wifi takes a long time, then the top bar/top menu “connection animation” changes to:
(full) signal strength
network name
“Limited connection” in Settings | WLAN
However, despite these indications, device is not connected to the WiFi network:
device does not see other devices on the local network
Wifi router does not list phone among connected devices (*)
The display of network name and signal strength along with “Limited connection” has traditionally™ meant that connection to the WiFi router is successful, but the router doesn’t have a connection to the internet. When there’s a failure to connect to WiFi, other visual indications have been used.
In the reported case, it would have been more helpful to indicate a problem specifically with WiFi.
(*) See Additional info section below
PRECONDITIONS:
All of mobile data, Bluetooth, and WiFi disabled
Flight mode either off or on
WiFi router set to use 802.11be “Wifi 7”, 2.4 GHz & 5 GHz, WPA2/WPA3-personal
STEPS TO REPRODUCE:
Enable Wifi and select network
Wait up to a minute or two until WiFi indicators change
EXPECTED RESULTS:
Phone to show failure or the animated connection indicator, if connection to WiFi fails
Phone to show signal strength, network name etc, if connection to WiFi succeeds
Phone does not see other devices on the local network
Top bar and Top menu look like this:
Wifi router does not list phone among connected devices(*)
(*) See Additional info section below
MODIFICATIONS:
Patchmanager: no
OpenRepos: yes
Chum: yes
Other: none specified
ADDITIONAL INFORMATION:
Removing and re-adding the Wifi network did not help (on 5.0.0.61).
Restarting network subsystem from Utilities did not help (on 5.0.0.61).
I think Wifi worked up to 5.0.0.55. I first noticed problems during attempts to update to 5.0.0.61.
I have not been able to ascertain the inclusion criteria for the router’s list of connected devices, i.e. whether the router shows “a true client list and not a dhcp client list or something else”.
Disabling WiFi7 in the router
fixes connectivity (local and internet):
makes phone connect to WiFi in seconds (not minutes)
indicators show no visible difference, except Settings | WLAN now says “Connected”:
Device Owner User: defaultuser
Home Encryption: enabled
the initial version of this bug report was created using Bugger 0.9.10+git6
“Limited connectivity” and “not in the list of devices allocated an ip address” sounds a lot like they in fact agree.
Does this reproduce across different WiFi networks?
This is in Flight mode, internet access is expected through Wifi. I have yet to try other wifi networks.
They do, and it shows that the phone is lying about being connected to Wifi, when it is in fact not according to the router. As in claiming Connected to wifi w/o internet access instead of Not connected to wifi.
I used strike to mark message as No, wrong! Removed it for your viewing pleasure.
I may not be up to date with hipness, either, but I hope that section from the bug report plus my previous reply make it clear enough
I use the network map view in the router’s web admin, where I can see clients come and go as I enable or disable Wifi on them. Clients other than the C2, that is. The C2 is permanently absent regardless of Wifi state.
WiFi 7 and WPA3 are indeed not supported; but WiFi is backwards compatible and WPA 2 is still enabled.
It is normally used to mean that the writer was wrong; thus my confusion.
Anyway; i happened to have an un-updated C2.
I tried on some older 5.0 version - what you describe works.
But i cannot reproduce on 5.0.0.61; connecting to WiFi while in flight mode works just fine there too.
Your report lacks whether WiFi works when not in flight mode with WiFi force-enabled.
Does it?
Is the network on a (2.4 or 5GHz) band that is not global? I seem to recall something about SIM PLMN setting WiFI regdom. (Not sure if here, elsewhere or just suggested feature).
You also have not really added any clarity to how you know your router shows a true client list and not a dhcp client list or something else.
Flight mode state has no influence on the outcome.
I looked around and could not spot any such settings - and in fact not even a region setting.
I have since tested and found other WiFi networks to work; disabling WiFi7 (but keeping WPA2/WPA3-personal) in router settings fixes connectivity locally and to the internet.
Apologies for the lack of clarity, which is shared by the router firmware Unfortunately, inclusion criteria seem undocumented, and browsing router logs wasn’t immediately helpful either. So for the time being we’re in the dark here.
On the other hand, what failure mode would prevent DHCP from working while having a fully functional WiFi connection? First step would be to establish radio connection, only then would DHCP come into play, right? And if DHCP fails, why would the phone say “Limited connectivity” rather than “No connectivity”?
(Edit:) My conclusion so far is that there is some kind of WiFi incompatibility, that unfortunately goes undetected on the C2.
Excellent information - one less red herring.
So WiFi with your particular router and settings simply does not work with the C2 is a fair description?
Not even a listing of the band?
Then whether the band is global or local is something that is pretty easy to look up.
(But with the potential loss of sim region info through flight mode being out of the picture, this theory goes to the bottom of the list).
That’s a good point of observation. I don’t know enough about how the backwards compatibility works to give suggestions on how to proceed. But other WiFi6-or-lower devices work fine i assume?
As a real-world example (though unlikely to be the issue); the router being out of ip addresses.
Many “only” give out 155 different addresses, often split across permanent and dynamic ones together.
All OSes pretty much do this.
It isn’t great; but it is a lot better than the inverse - i.e. not showing the user that there is a physical link but “only” lack of addressing.
I don’t immediately see any suspicious changes between these versions unfortunately.
I guess I am suffering from the same bug: I sometimes have wifi indicator on C2 showing it is connected (with max strength) but the apps complain that there is no internet. And me too, I can toggle on/off wifi or use the ‘restart network subsystems’ in utilities, this is not helping. Mobile data do work (turning wifi off then) and make apps not complain anymore about internet. It seems only a reboot can fix the issue.
I have difficulties to understand what triggers the problem exactly as wifi can work for hours until at some point it fails. It could be that the signal weakens a lot at some point and generates this state.
EDIT: I can add that when the problem occurs, the hotspot functionality is not working either. The phone shows no error but the wifi which should be available for other devices is not appearing. A reboot fixes it.
EDIT 2: I traveled yesterday and when I looked at my phone, it claimed I was connected to my home wifi while I was hundreds of kilometers away
