Develop Bugs

[Q] Note 8.0 weird WiFI problem...

Hello,
I recently purchased the Note 8.0 and I'm experiencing a weird problem with the internet connection. I can connect to my wireless network, I can access other devices on the LAN, but I cannot access the Internet or ping the gateway (I can however ping other hosts on the LAN). I know it's not the tablet as I've tried it at work and I also tried running my S4 as a hot-spot and internet works as it should. The S4 works without a problem on my wireless at home as do a few laptops.
At this point, I'd say, it is obvious that it's something with my cable modem/router, but if possible I'd like to figure out what the problem is.
I found a post somewhere that had a similar problem, where the device in question was receiving the wrong MAC for the gateway, but this is not the case here as my tablet does not even receive a MAC for the gateway.
Output from the tablet:
android:/ $ ip neigh
<some IPv6 address> dev wlan0 lladdr <Gateway MAC> router STALE
192.168.0.1(gateway) dev wlan0 FAILED
192.168.0.5 dev wlan0 lladdr <Server MAC> reachable
Output from the S4:
android:/ $ ip neigh
<same IPv6 as above> dev wlan0 lladdr <Gatewawy MAC> router STALE
192.168.0.1 dev wlan0 lladdr <Gatweay MAC> reachable
192.168.0.5 dev wlan0 lladdr <Server MAC> reachable
I've tried resetting the modem back to factory defaults, removing/changing encryption type. I did not wipe the tablet as I've had the issue from day 1.
The only way I'm able to get the tablet to sort of connect to the internet is to assign a static IP to it, however that only works for a few mins and is very intermittent.
Does anyone have any suggestions? Any way to figure out why the tablet won't get the MAC for the gateway?
My cable modem/router is an Arris DG860, but unfortunately, there's very little info on it and I couldn't find a firmware upgrade for it. What's also interesting is that the tablet does not show up in the DHCP client list of the modem, however it gets an IP, connects and communicates with other hosts.
Thank you for your help

What IP is the Note 8 ending up with? If somehow it is outside the range of what it should be I would wonder if it is just giving itself an IP when it fails to receive one from the DHCP server (ie, your router). I know that Windows computers will do that as a fallback.
Can you check your router to see if perhaps the DHCP pool is too small? If that were the problem then it might not be allocating another IP because there aren't any left (based on it's current config). In which case you can just make the number of allowable IPs to be larger.
There may be other possibilities too. The above are just what is coming to mind at the moment.

It is a valid IP as I have access to other devices on the network, but to answer your question it gets 192.168.0.13 with a mask of 255.255.255.0. I wanted to try forcing the private network to work on IPv6, but haven't been able to figure it out yet.
The tablet gets the right MAC for the server and communicates with it, which leads me to believe that the router (gateway) isn't responding to ARP requests from the Note. I have some access to the router's CLI but it's not very helpful and I have no idea how to troubleshoot it on the Note..

finaldude said:
It is a valid IP as I have access to other devices on the network, but to answer your question it gets 192.168.0.13 with a mask of 255.255.255.0. I wanted to try forcing the private network to work on IPv6, but haven't been able to figure it out yet.
The tablet gets the right MAC for the server and communicates with it, which leads me to believe that the router (gateway) isn't responding to ARP requests from the Note. I have some access to the router's CLI but it's not very helpful and I have no idea how to troubleshoot it on the Note..
Click to expand...
Click to collapse
That is bizarre. Can you ping the gateway from other devices on the network? Can other devices on the network ping or otherwise see or access the Note 8? It seems like the Note 8 doesn't exist to the gateway, and so I'm wondering if it also doesn't exist to anything else on the network. It is possible (though I'm just guessing here) that the Note 8 is giving itself an IP address that it determines as being appropriate based on the other devices it can see. Given that it doesn't show up in the DHCP table on the gateway I can't really see how it is getting an IP unless it is assigning it to itself. Another thought is to check the IP addresses of all the other devices currently on the network in case somehow you're having an IP address conflict (ie, two separate devices ending up with the same IP somehow, which can happen temporarily in the case of a device having an IP and then being hibernated, during which another device is given the same IP, and then later the first device is resumed from hibernation).
If you don't receive much further help here on the XDA forums I'd suggest starting a thread over on the SmallNetBuilder Forums as there's lots of knowledgeable folks there that can help with networking things like this.
As for me, I've got to sign off for the night. Best wishes to you as you troubleshoot!

Hi and thanks for the reply.
Yes the gateway is pingable from other devices, so is the Note. I also tried changing the 192.168.0.xxx to 10.10.0.xxx with no luck. The Note received the 10. from the DHCP server, but the gateway still would not respond.
I think it might have something to do with the routing on the modem, the hosts on the network can communicate at layer 2 (no routing need) while everything on the outside needs to be router. Still does not explain why the gateway doesn't respond to the Note though...

Have you done a traceroute to another local device to see the path its taking?
You will need to have root and I think busybox. You will also need to su before doing traceroute... maybe there is an app that can a trace if your not rooted!
Sent from my GT-N5110 using Tapatalk HD
---------- Post added at 08:42 PM ---------- Previous post was at 08:35 PM ----------
What is your network diagram with models
(I.e note 8 > router(wrt54g) > cable modem)...
Sent from my GT-N5110 using Tapatalk HD

I am not able to run traceroute from the tablet, I tried it from my desktop and it completed, but never hit the gateway - it went right to the host.
the network model is
note8--->all-in-one-wireless cable modem

finaldude said:
I am not able to run traceroute from the tablet, I tried it from my desktop and it completed, but never hit the gateway - it went right to the host.
the network model is
note8--->all-in-one-wireless cable modem
Click to expand...
Click to collapse
Is the router still left with it's default settings? Also, Is there a page in the router/modem's web gui for DHCP and if so, what are those settings? It sounds to me like the DHCP is failing to pass along the external GW and/or DNS servers. To test a theory, are you able to ping 8.8.8.8?

I wonder if this was solved? I'm having the exact same problem minus all the technical knowledge. Tech support at time Warner seem like they are reading a script. Has anyone found a fix or workaround for this modem? My note works everywhere but home

I might have narrowed down the issue...
On technical support last night it was resolved that the Note was looking for IP version 6 ip and the time warner box only outputs IP version 4...
Is there a way to have the note look for IP version 4??? I know nothing about this but I guess over this next year we are supposed to be switching to IP version 6?

I unpacked my note 8 yesterday and I experience an issue when connected to wifi. When I tried to download something from play store it taked too times and usually downloads remained blocked at 70/90% and this didn't happen in 3G. So I tried a factory reset and now all thing works great you could try..
Tapatalk on Samsung Galaxy Note 8.0 3G

mouse100 said:
I unpacked my note 8 yesterday and I experience an issue when connected to wifi. When I tried to download something from play store it taked too times and usually downloads remained blocked at 70/90% and this didn't happen in 3G. So I tried a factory reset and now all thing works great you could try..
Tapatalk on Samsung Galaxy Note 8.0 3G
Click to expand...
Click to collapse
Factory reset doesnt do it for me.
My wifi works everywhere but at home using Time Warner on the Arris DG860 modem. I think the OP and my problem are because of a combo of these factors.
I believe it has to do with the IP change that is taking place this year.
If you look up online it seems to be kind of a big change. You can type ... time warner ip version 6... into google and see a link that explains it. I cant link for some reason.
I wish someone could confirm this, but does the note 8 only accept IP version 6? Time Warner will only deliver version 4 to me right now through this modem, and the tablet is making a version 6 IP.
Atleast thats where ive made it so far.

I can confirm that I have the same problem at my In-Laws house. Arris router, and Charter network in Louisville. Likely the same as Time Warner folks.
But I think the Arris router is the more likely culprit. I didnt feel comfortable asking the FIL to let me kack around in his router :laugh:

I have the same problem on my main wifi at the house. It's a 2.4/5 ghz setup. My guest wifi is just normal 2.4 different router etc. I'm going to need to look into this at length as this just isn't going to do. Also as far as IP6 is concerned we won't see that roll out Internet wise for at least another 2 years fully. When it does go full steam all of the IP4 routers APs will have to be either replaced or firmware upgraded if the internal radios will even support IP6. Most likely 70% won't and that's the reason you don't see a lot of IP6 routers etc. We have them on the enterprise side but most are not in use. I will report back when I have anything useful.
Casperi
Sent from my GT-N5110 using xda premium
---------- Post added at 11:54 AM ---------- Previous post was at 10:57 AM ----------
OK figured it out and it includes a bit of funny.
I went through my network setup and forgot that I had
MAC filtering on so I added the Note along with a face palm thinking
That was it, couldn't have been that easy right... No it wasn't but good
News.
The note 8 doesn't like the 20/40 "channel width" or some routers call it "wideband" in the routers or in my case access points. Turn that to 20 only and boom there you go. Wifi
Works perfect. You will find it typically under advanced settings.
Casperi
Sent from my GT-N5110 using xda premium

sweeptheleg said:
I might have narrowed down the issue...
On technical support last night it was resolved that the Note was looking for IP version 6 ip and the time warner box only outputs IP version 4...
Is there a way to have the note look for IP version 4??? I know nothing about this but I guess over this next year we are supposed to be switching to IP version 6?
Click to expand...
Click to collapse
The Note 8 supports both 4 and 6. The issues described sound a lot like config issues on the modem or router. as stated before, sounds like an issue with the DHCP server (the thing that provides ips to the devices.)
Sent from my GT-N5110 using Tapatalk 4 Beta

Hmmm I have an ipad, note 2, ps3, laptop, gfs iphone all connecting just fine... hours and hours of tech support, and the best answer is incompatability. For some reason the note is only creating ip6 my isp only does 4. I understand the note is capabale of both, but in this specific instance there is a bug in the note with this router.
nothing to do with settings. If every other device I own connects without hassle then someone needs to fix the note 8. Christ my note 2 connects....
there were no options untouched by highest level tech person fromisp... its the note 8

Arris DG860 and Note 8 *Workaround*
Ok, just got done trouble shooting a customers Note 8 on working behind one of our DG860 modem/routers, what I was seeing was the Note 8 was showing up with an IPv6 address even if I had the IPv6 DHCP turned off. What I found works is if you go into LAN > DHCP on the DG860 and create a "Fixed DHCP Client" using the Notes MAC address and some address in the IPv4 range like 192.168.0.X it will force it to pull that instead of the IPv6 address and work. Hope this helps anyone running into this weird combination.

At wits end
I been having nothing but issues connecting my wifi only note 8 to the internet at my house. Everywhere else it works fine but at home nothing but issues and all other devices are connecting with no problems. I have tried it with a netgear router, and now a arris gateway and still cannot connect. The cable tech came out by chance and was checking my connections and could not figure out why it would not connect either. I have time warner if that makes a difference which I am starting to wonder it does seeing how I can connect everywhere else and have tried two different ways to connect at home.
Update: So after being on the phone with time warner, samsung, and live chat with Arris this is just one hot mess. Samsung is stating that there seems to be firmware issues with arris gateways which I have noticed many people posting problems with their arris products, and their resolution was to roll back the software. Time Warner is stating that they cannot roll back the software on the modems and was trying to blame it on my tablet, though it was working before I setup the gateway and it works on other routers even on a piece of crap belkin that likes to kick off everything it worked on that with no issues. Arris told me that they have no control over the software only the cable companies do, so in typical fashion a lot of passing the buck and finger pointing. I am just irate at the moment for I do not have a working tablet at home. Part of me thinks it is the android 4.2.2 as well, for I had 4.2.2 on my droid razr hd and had numerous wifi issues with it.
Update 2: After doing some more research I have found there seems to be a issue with the wifi card and the chipset with arris gateways so there is a compatibility issue with the card. I had my netgear hooked up to it before and didn't have issues so I am going to just use my netgear and run the gateway in bridge mode it should fix the issue.

OnePlus 3 Weak Wifi and Bluetooth Audio Stuttering

Wifi on my OnePlus 3 is very weak compared to my 1st gen Moto G . Audio is stuttering while playing through bluetooth . Already tried replacing the phone but the issue is still there . If anybody has a solution please do let me know . TIA

Do you mean the wifi reception is weak when you are away from the router or all the time ?

karthikdgr8 said:
Wifi on my OnePlus 3 is very weak compared to my 1st gen Moto G . Audio is stuttering while playing through bluetooth . Already tried replacing the phone but the issue is still there . If anybody has a solution please do let me know . TIA
Click to expand...
Click to collapse
On WiFi I have the same issue also: where my previous OP2 was getting signal wih no problem, with this I'm getting it weak or none.
No issue regarding Blueooth.
I'm hoping to get an update soon (I read somewhere that 3.1.3 makes it better, so I hope the 3.1.4 bring that modification also)

Get new router.

I am also running 3.1.2 and I can confirm that wifi is much weaker than on all my nexus devices.
Haven't read anything about it getting better with 3.1.3. Sure it is not an hardware issues, do u have any sources reporting that?

Dabarr said:
I am also running 3.1.2 and I can confirm that wifi is much weaker than on all my nexus devices.
Haven't read anything about it getting better with 3.1.3. Sure it is not an hardware issues, do u have any sources reporting that?
Click to expand...
Click to collapse
You're right. This is the changelog of 3.1.3
* Camera HDR performance tuning
* Bluetooth and NFC connectivity improvements
* Bug fixes in general telephony
* Bug fixes in Google and OnePlus apps
While this one is for 3.1.4
http://i2.hd-cdn.it/img/max_width1000/id517354_1.jpg
http://i2.hd-cdn.it/img/max_width1000/id517355_1.jpg

I've had to issues with either, and I stream bluetooth everyday in my car.

I can't say I've had any Wifi issues but I've definitely had Bluetooth connectivity issues in my car. Question. There is already talk about update 3.1.4 coming out but I haven't even received 3.1.3 yet. Is this something that should be pushed to my phone or do you have to load the OTAs manually? Sorry if that sounds stupid. This is my first oneplus phone so I'm a little new to the experience

Bluetooth while using my phone is rubbish on my op3 caller's keep cutting in and out of the conversation getting on my nerves!!!!!

Bluetooth on my car is almost perfect... Wifi is bad in terms of weak signal.
Sent from my OnePlus3 using XDA Labs

Dkwest84 said:
I can't say I've had any Wifi issues but I've definitely had Bluetooth connectivity issues in my car. Question. There is already talk about update 3.1.4 coming out but I haven't even received 3.1.3 yet. Is this something that should be pushed to my phone or do you have to load the OTAs manually? Sorry if that sounds stupid. This is my first oneplus phone so I'm a little new to the experience
Click to expand...
Click to collapse
3.1.3 is not official I think. U can download it as a custom rom without a problem. OP3 Lite is pretty good and debloated. Like stock but with less bloat.

I posted a similar WiFi issue in the one plus forums but no response so far. Maybe it's just me facing this issue:
There is definitely something wrong with OP3 or the ASUS router.
I am experiencing a strange issue with WiFi. The wireless router is about 45 feet away from my bedroom. I am able to use WiFi in my bedroom on my laptop, HTC M7, One Plus One, and Samsung Galaxy S6 Edge Plus. However, when I use OP3 there, I am connected to WiFi (router) but it says there is no Internet connection. As I walk closer to the router, the problem goes away. Can someone please suggest a solution?
For now, this is how I have improved the situation:
However, here is the workaround.
1. Note down the MAC address of your phone. Settings->About Phone->Status- IP Address section shows a number separated by ":".
2. Login to your router as administrator. If you are using DHCP, the IP addresses are being assigned automatically by the router. This is where we will make a change. For the phone mac address, set the IP address as static (one way to get an IP address is to check what IP address is assigned to your phone when you are connected to WiFi). Note down this IP address and assign manually on the router to this MAC address.
3. Now, the last part. On your phone go to your WiFi network. Long press and modify. Choose Static IP address option. Assign the IP address you hard coded on the router for this device. Set the Gateway to the LAN IP address of the router. Set the DNS servers as 8.8.8.8 and 8.8.4.4 (google servers). This should make things work.

put me down for bluetooth issues as well. It connects to my caddy then drops 1 min later.

brickedvice said:
Get new router.
Click to expand...
Click to collapse
Thanks for that. You're so helpful.

dindoliya said:
However, here is the workaround.
Click to expand...
Click to collapse
Strange. Assigning a static IP shouldn't solve Wifi-connection problems...
But: thanks anyway.

had more issues with note 4 and Bluetooth than with this 1+3. I hope all signal problems are software related and not something related to antennas.

stoerebink said:
Strange. Assigning a static IP shouldn't solve Wifi-connection problems...
But: thanks anyway.
Click to expand...
Click to collapse
You are right. This was not the solution that should have worked. But it is working for me most of the time. I think OP3 needs an update to fix the WiFi issue.

Bluetooth and Wifi Issues
I too am experiencing issues. First of all my wifi is significantly slower than on my OPO. It also gets worse reception than my OPO did. Bluetooth is a complete mess right now. My car radio will not play if I press the play button, and I have to go into the app to play music everytime. At my home wifi it stutters very often and it randomly stops playing. It will often stop playing a playlist when there is 3 seconds left in a song, yet it does not show paused. It just sits there. I can not tell if this is on OP or spotify's end, but it is really annoying me. It happens even when I am not on bluetooth. But the constant stuttering happens over bluetooth no matter the app.

I'm surprised to see this thread. I find the WiFi on my OP3 exceptional.
My moto x pure and laptop (razer blade) don't get WiFi in my bathroom but my OP3 gets full service.

Yeah for some reason I can't get past 2mb/s down on a 50mb connection. Works fine on everything else, even the upload reaches 10mb/s on the phone. This seriously is a huge problem. It even takes about a minute to obtain an up address after connecting to the network

Unable to connect to WPA2-Enterprise WiFi (PEAP/MSCHAPv2)

This is the first phone I've ever owned that I've had an issue connecting to this type of WiFi network. I configured all of the settings correctly when adding the network (including telling it not to verify the certificate, since I don't have one installed): PEAP, MSCHAPv2, don't verify cert, identity, anon identity, and password. I am certain the password is correct, because the RADIUS server is responding with an ACCEPT message. However, the phone just immediately disconnects. After a few tries, it just shows "saved" under the SSID name, and doesn't try again. It never gets to the "obtaining IP address" stage of the connection.
Has anyone else had this issue? It will connect to a PSK SSID just fine. My Galaxy S7 Edge, as well as every other Android phone I've owned back to the HTC Evo will connect to this same SSID just fine.

yes i do, i have that issue at work

palvarez05 said:
yes i do, i have that issue at work
Click to expand...
Click to collapse
Have you read any other threads about it? Is there a fix? I know that there is a verizon build that supposedly improves WiFi connectivity, but I really don't want to install that on my (google store) Pixel XL. I didn't read anything about it specifically fixing this issue, anyway.

dodgeboy said:
Have you read any other threads about it? Is there a fix? I know that there is a verizon build that supposedly improves WiFi connectivity, but I really don't want to install that on my (google store) Pixel XL. I didn't read anything about it specifically fixing this issue, anyway.
Click to expand...
Click to collapse
absolutely nothing...

I'm having problems with 5ghz connections. 2.4ghz works fine. It connects fine but on 5ghz I get slow downloads and connection interruptions. $800.00 phone should connect to everything.

No issues here connecting to my work WPA2 enterprise wifi

I connect to my office WPA2 Enterprise but it is slow as could be on my Pixel XL. My N6 it's super fast so something is going on.

marcjc said:
I connect to my office WPA2 Enterprise but it is slow as could be on my Pixel XL. My N6 it's super fast so something is going on.
Click to expand...
Click to collapse
Just as an update... I sideloaded the OTA - NDE63P and it did not fix my slowness issue running on my office WPA2 network.
In case anyone was curious about the OTA and sideloading - https://developers.google.com/android/ota

Mine works, but our office network requires an identity and password. No server certs or anon Ident. So far, I have not had an issue.

Wi-Fi authentication - not working on GoGo in flight Wi-Fi service

OK, so I've got a VERY strange one for y'all.
First off, I had this problem on Nougat. That's what prompted me to follow instruction on here and upgrade to Oreo and try. Yeah, that failed too.
So right now I have no problems at all connecting to any Wi-Fi router at home, my friends, in-laws, etc. Even when we go to restaurants and connect, like Bob Evans, Denny's, etc. where it asks you to accept the terms of service.. no problems.. at all!!
The problem I have is on the plane. I fly 4-6 planes a week and the free Wi-Fi I have with T-Mobile has been a godsend in keeping up with work while in the air. Obviously, it's happening on every plane I fly. I can connect to the SSID, but do not get an IP address. I even bothered the guy sitting next to me once to disable his iPhone and let me connect using the IP addressing that his phone had to try. Nothing. I can ping the gateway, but not the DNS server. SO I resolved the URL for the login page to an IP and threw that in Chrome to try to pull it up. Still nothing. It's so infuriating!! I can open plenty of apps that shows the IP address that whatever router I'm connected to gives me, but for some reason I do not get one when connecting to GoGo. I've tried a different browser (firefox, opera and the Samsung browser). I've tried an incognito window to remove and possible cashed issues. I've tried forcing Google's DNS and OpenDNS, still nothing.
So, the next step.. try a different phone. Yup, works great. It's not an account issue. It's almost like my MAC address is blocked by all the routers on every plane?! That can't be. I carry this Moto Z2 Force and also my iPhone. Problem is, I wanted to try to connect my laptop via Bluetooth to my Z2 Force once it's connected to the GoGo Wi-Fi to get my laptop online, but I can't even get an IP to be able to connect to the router. You can't do that with an iPhone. If you can... a penny for your thoughts
What's worse, is I've contacted GoGo Wi-Fi's tech support chat. They are determined to tell me there's something wrong with the phone.
Can someone please help me figure this out? I used to work in an IT department for the state government, and I should be able to keep up with whatever you ask.
Thanks a TON in advance!!
Some specifics:
Moto Z2 Force (T-Mobile)
Rooted with Magisk (but had the issue when it was bone stock on Nougat)
Android 8.0.0
Baseband M8998TMO_20207.117.02.41R NUS
Kernel 4.4.78-perf-g6174029
Build OCX27
SSID of the affected network - gogoinflight
I'm flying 3 hops tomorrow and I can get you as much detail as you'd like, I just need to know what.

nothing!?

Home WiFi issue

My WiFi will connect and then almost immediately disconnect on my home wifi only. Anywhere else, the WiFi works perfectly. I contacted my internet provider and they're sending someone out to "look at it". Before I keep this appointment, I'm reaching out to see if anyone has a fix; I doubt they'll fix it. I recently upgraded my router and modem, this is when the issue started. I've got the same issue on my Nexus 6P. My wife does not have this issue on her Pixel 3, and any other device connected to the WiFi seems to work just fine - this leads me to its a device issue not a router issue. Any help will be appreciated. To reiterate and still it up shortly: my Pixel 2 WiFi works everywhere except home and at home every other device works fine. I'm on the most current Google update stock not rooted.

willisjm193 said:
My WiFi will connect and then almost immediately disconnect on my home wifi only. Anywhere else, the WiFi works perfectly. I contacted my internet provider and they're sending someone out to "look at it". Before I keep this appointment, I'm reaching out to see if anyone has a fix; I doubt they'll fix it. I recently upgraded my router and modem, this is when the issue started. I've got the same issue on my Nexus 6P. My wife does not have this issue on her Pixel 3, and any other device connected to the WiFi seems to work just fine - this leads me to its a device issue not a router issue. Any help will be appreciated. To reiterate and still it up shortly: my Pixel 2 WiFi works everywhere except home and at home every other device works fine. I'm on the most current Google update stock not rooted.
Click to expand...
Click to collapse
Are you hiding your SSID or is it broadcasting? What wifi security protocol are you using? Try WPA2 + PSK. Does this happen on both 2.4Ghz and 5Ghz frequencies? Which router do you have (make/model)? What does the log say in the router? Usually under admin and (usually) configurable to log wifi connections.

v12xke said:
Are you hiding your SSID or is it broadcasting? What wifi security protocol are you using? Try WPA2 + PSK. Does this happen on both 2.4Ghz and 5Ghz frequencies? Which router do you have (make/model)? What does the log say in the router? Usually under admin and (usually) configurable to log wifi connections.
Click to expand...
Click to collapse
I am using wpa2+psk, it happens on both 2.4 and 5, I have the Spectrum Wave 2 - RAC2V1K Askey (Spectrum's provided router). I posted a screenshot of the recent part of the log because I'll admit, though I am seeing patterns in the log I am not sure how to separate the good from the bad.

https://forums.timewarnercable.com/t5/Connectivity/Wifi-connection-w-cell-phone-constantly-connects-disconnects/td-p/155083
This fixed it