Wifi "Connected, No Internet"

[dty06]

I had a similar issue. It only happened on my home wifi, not my work wifi or hotspots or friends' wifi or family's wifi. Every other device at home (smart TV, PS4, desktop PC, laptop PC, 2 tablets, Amazon Fire TV, 2nd cell phone, work cell phone...) was working fine.

It drove me crazy for a few days. I forgot and re-added the network several times. Turned wifi on and off. Wiped system cache from recovery. I even did a factory reset (twice) to troubleshoot the issue. Still no go.

Finally I reset my wifi router and re-configured my DHCP scope. Set it all up on Class C DHCP (previously Class A but shouldn't matter at all) with a new network name and password, set to both 2.4GHz and 5GHz mixed mode (same as previous).

What do you know? It worked and my 6P has been fine picking it up ever since.

It still kinda bothers me that I couldn't figure out the issue but it works now and hasn't had a problem since.

 

[GSDer]

because after 7.12 I was really having battery issues (mostly fixed by turning off Bluetooth, and WiFi, per this setting, when I wasn't using them)

That's unfortunate - I seldom used Bluetooth unless I was going to play music through an external speaker, so I turned it on/off as needed, but once I started driving for Uber/Lyft I just leave it on all the time. And Wi-Fi is also turned on all the time. I have not seen the battery life issues that you describe.

 

[PGrey]

@dty06, yeah, yours sounds a bit like my situation.
I had reset my router as well, which does serve out all my DHCP, my APs just handle the WiFi signal, but my router does all the "legwork", all the DHCP is disabled on my Unifi units (including my CloudKey).

I don't have a great way to change DHCP classes on the stock firmware on my router, I have to load a Merlin or similar version, which I suppose I could do, but in the past I haven't always had the best luck with perf. and these custom builds.
I run on a single segment, with a small set "reserved" for things like the router, switch, APs, server, printer, and a few other "fixed" devices (a couple of my IoT devices really like to have a fixed IP to function well).

I also had zero issues with any other device on the same setup, like you, tablets, 2 other phones, and several IoT devices, all worked fine, when my 6P failed.

For now, mine is resolved with what appears to be the charge/reset, which still has me scratching my head (a bit like yourself, it's bothersome), but it's only happened that one time, and on that device, singularly.

I wonder, if it was really the class change that "fixed" something, or if something simply "reset" in the stack; I suspect that's what happened on my 6P anyway, given the way it resolved.

 

[PGrey]

@GSDer, yeah, I sure see it, I turned mine back on yesterday, just as an experiment, and I'd say when it's "idle" (I have most background stuff disabled), it drains at 2-4 times the rate, if I have both radios enabled. If I have just WiFi, I'd say it's about 1.5-2 times the rate.
Bluetooth is by far the worst "culprit", but WiFi is a factor too.

The annoying thing is, back on MM I had zero issues running both, all the time, I never even gave it a second thought.
I'd bet the Pixel devices don't have this issue.

Looking forward to "O", maybe I'll join at the second beta or something, since it's supposed to really have a bunch more battery conservation algorithms implemented, I was reading highlights a couple of das ago.

 

[dty06]

@dty06, yeah, yours sounds a bit like my situation.
I had reset my router as well, which does serve out all my DHCP, my APs just handle the WiFi signal, but my router does all the "legwork", all the DHCP is disabled on my Unifi units (including my CloudKey).

I don't have a great way to change DHCP classes on the stock firmware on my router, I have to load a Merlin or similar version, which I suppose I could do, but in the past I haven't always had the best luck with perf. and these custom builds.
I run on a single segment, with a small set "reserved" for things like the router, switch, APs, server, printer, and a few other "fixed" devices (a couple of my IoT devices really like to have a fixed IP to function well).

I also had zero issues with any other device on the same setup, like you, tablets, 2 other phones, and several IoT devices, all worked fine, when my 6P failed.

For now, mine is resolved with what appears to be the charge/reset, which still has me scratching my head (a bit like yourself, it's bothersome), but it's only happened that one time, and on that device, singularly.

I wonder, if it was really the class change that "fixed" something, or if something simply "reset" in the stack; I suspect that's what happened on my 6P anyway, given the way it resolved.

Strange indeed.

But I am envious as all hell of your home set up. I'm an IT admin sitting here with just my single subnet. No switches or WAPs or anything beside the modem and router.

Out of personal and professional curiosity, how do you like the Unifi system? I just set up some Aerohives at work and love them so far.

 

[PGrey]

Strange indeed.

But I am envious as all hell of your home set up. I'm an IT admin sitting here with just my single subnet. No switches or WAPs or anything beside the modem and router.

Out of personal and professional curiosity, how do you like the Unifi system? I just set up some Aerohives at work and love them so far.

@dty06
Getting a Unifi AC setup is pretty darn reasonable, or at least it *seems* reasonable to me, particularly when you look at the cost of a decent WiFi router (i.e. 300+).
An AC Pro unit is about 130, and an AC LR is about 115, or an AC Lite is about 85, so say if you got even the pro and LR, you'd be into it for about 245. That's retail online too, I'm sure via auction you could get in quite a bit cheaper.

I have a switch because I started having too many devices for my 8-port router, given a line to the downstairs (and un-managed switch, Unifi device, etc), a couple of hardwire PCs, printer, small QNAP server (to handle security, backup and some cloud duties), etc. I have a relatively simple managed switch, but it does mitigate network storm type of activity, which is handy.

Once you go to Unifi, you'll NEVER GO BACK, trust me, there's simply no equal, in the price range (yeah, I'm sure some pro Cisco or Meraki stuff is going give you a comparable (or perhaps slightly better, particularly if you're running hundreds of devices) experience, but even one of those APs is more than the aforementioned set.
The consistency alone is nuts, I have 100/100 FIOS, and I can pull the same, with two AC-PRO-M units (used to be an AC-PRO and AC-LR, just better outside range with the "M" upgrade), at sort of opposite sides and floors in our house, it's rare that I get less than about 95/95, more often I pull around 99/102 or so, with just slightly more latency than wired. And it works that way, all day long, across multiple devices, anyone who visits and uses our guest network is always asking me what I have installed (not to mention the guest network setup is truly isolated, and ultimately controllable).
You simply can't touch the consistency/reliability, for the cost, and it will leave pretty much any AC consumer router in the dust, from what I've seen.
No question, if you're 8' away from both, you'll get similar speeds, but if you're 50' and 3 corners, and maybe a door, than the Unifi is still going to pull more or less the same speeds, and the consumer router is going to really tank by comparison, IME.

Are they more difficult to configure, yeah, I suppose, but if you have decent networking knowledge of some sort, they're really not, they just take a bit more time.
Plus you end up tuning them a bit, so handoff works well (the one downside to Unifi is no ZH for AC, but if you survey and set them up, I find you simply don't need it), so there's that time, but it's time well-spent, if you want rock-solid and fast WiFi...
I installed a single LR unit in my parents home over the holidays, and it fixed ALL their WiFi issues, whereas before they had a really nice Netgear router, but the consistency was incomparable (everyone, including my brothers' family in a room near the back of the house was asking me about them). They went from a barely usable signal from the middle-back of their house, to 95-100%, in the farthest corner of the house...

I pretty much can't recommend them enough, for most installs, they're that good, IME (I've had mine for about 1.5 years now, and I'll never go back).

 

[PGrey]

My 6P did this again today.
Reboot, nothing. Reset network settings, nothing.
I actually had *some* WiFi connectivity, I could pull down part of a page, before it "fell over".

Tested two other devices (PC and tablet), no issues, WiFi fine, pulling full speeds, normal latency.

Tried the "charge trick", nope, still not working.

Rebooted my router, and this time, for whatever reason, it started working again.
Now I'm starting to wonder about my router, although it still had zero logging for any events on my 6P.
Also strange that this ONLY affects my 6P, whatever it is.
Very frustrating, either way, makes me wonder if/when it'll happen next, and if I'll pull a ton of cell data, before I realize.

If it happens again, I'll go into the console on my APs and enable full tracing, which generates a LOT of data, and perhaps would show something, anything.

 

[The Linux Ferret]

I’m no genius, but I don’t like to give up.
So when this happened to me today, I took longer than I’d like to admit, in troubleshooting.

In my case, disabling my iptables-based firewall on my Android phone resolved the issue. Enabling it again would result in the “Connected, no Internet” and the WifiQualifiedNetworkSelector process throwing the “It_Hertz_When_IP_SSID: 00:MA:CAR:ES:S1 is in blacklist” error in CatLog. So, if anyone else can replicate my anomaly in your troubleshooting, take a good look at your software-based firewall solution installed on your Android device. AFWall+ in my case. In short, check your firewall rules. The Linux Ferret, out.

 

[Jbungard]

I was having the same problem on my Google Pixel. Just suddenly the internet would not connect. I tried EVERYTHING for like 2 hours. Then I decided to check my router. Once in my router I noticed that one of my devices had been blocked..unblocked it, on the phone went to forget network, rescanned and it came right on. Try this first. immediate fix for me!!