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Certain apps not connecting over wifi

If a VPN works, that implies there's something external to the phone that's blocking access, like the router, a firewall, the ISP, etc.

FWIW I have to use a VPN to access Play Store for app downloads and updates, because of a firewall, I'm in China.
Do you have a solution for this? I've tried changing the wifi connection to static but that doesnt seems to work
 
Do you have a solution for this? I've tried changing the wifi connection to static but that doesnt seems to work

Nothing that would be useful to you probably. A solution for my situation is to not be in Chine, which has the Great FireWall.

Something is blocking it, like the router, a firewall, the ISP, etc. Which exactly, I have no idea.
 
I have the same problem with Amazon prime video & Netflix. On my smart TV, tablet & chromebook the apps can't connect to internet. The wifi is fine opening gmail or facebook though and other websites. Help is needed!!
 
I have the same issue. I use a Samsung Galaxy S10 and my setup is as follows: a main modem set up downstairs with a cable pulled to my room. I use this ethernet cable to set up my Cisco router (EPC3928AD, Ziggo - NL) as an Access Point (AP). After setting up and connecting with my phone, it works fine for a brief period (I estimate around 15-30 minutes) before I lose connection to some apps/websites. For example, I can still load YouTube video's and use Whatsapp/Snapchat, but I cannot load Reddit or load a game-app and iMDB.

My sister is connected to this router and she hasn't had any issues and my laptop (from where I'm writing this comment) also seems to keep its connection with the AP. The issue must be my phone.

Help is appreciated, until then I'll keep searching for options.
 
Same issue on ONE particular wifi network and ONLY on my Pixel 4XL Android 11 build number RP1A.201105.002

Only certain things in certain apps - for example, the Twitter app images/videos mentioned before. While no problem on Twitter in browsers.

The workaround to forget the network, then use static IP with public DNS didn't work.

At a loss as to what could be. I noticed IP v6 addresses and DNS info when I check the network details, but no way to turn them off for my phone.

I doing think the owner of the router is going to want to turn off IP v6, just on principle: "v6 might be better than v4, right?"
 
Hey everyone,

I was having the same issue with an old Asus Zenfone that was previously working great. Not 100% sure how it started, but it might have been related to a firmware update on my internet box. Anyway, this Android phone had random network issues on home wifi: some apps could connect to the internet, some could not o_O I suspected a DNS issue (accessing a website of mine through it's IP address worked but not through the domain name). Even stranger, some days it would work 100% normally, some days it would not, making it harder to understand and fix.

I tried connecting to another wifi network (another phone in hotspot mode) and it worked correctly.
Same if I used a VPN but using my regular wifi connection, everything was working correctly.

I inspected the network state using Network Analyzer, and noticed that when it did not work, the gateway IP and DNS server IP were not set at all. I have no idea why, but eventually, I ended up configuring my android device with a static IP instead of using the DHCP one. Not a perfect solution, but this way, the gateway and DNS IPs seem to always be correctly set.

Thought it could maybe help some of you :)
 
Solved!

I had all the problem mentioned above. Some apps don't load over WIFI but this happened only with a Samsung Galaxy S10+, several devices at home such as, iPhone, iPad, amazon fire, etc, work!

I tried all the proposed solutions, static IP, delete and reconnect to the Wi-Fi, reboot the phone, even I installed McAffee mobile and ran the virus scan. Nothing changed, so . . .

Last week we suffered a power outage for 5 hours of so, when power came back, all the gadgets was running without problems, so I noticed that Twitter was not loading images or videos but activating the VPN it worked.

Anyway, today I unplugged the router and modem for 30 minutes and turned them on. MAGIC!

Solved all my issues with the S10+ connection.:cool:
 
I figured it out. It has something to do with new security settings of Android 11 (perhaps 10, too). It kind of prohibits connections if something is wrong in the connection or at least Android think it is wrong. So I found a setting in the router - I have cable connection - that with cable connection I should use the setting use only IPv6. Before it was on IPv4. This solved my problem. Before restarting didn't do anything. It might still happen in other wifis because of the same reason. So there are apps that help around this. So having the thing solved in one wifi might not solve it for good.
 
Fixed it. https://kb.netgear.com/19863/Ping-Test-to-determine-Optimal-MTU-Size-on-Router Tested and changed MTU size on router from 1500 to 1492 after testing. Verified that going back to 1500 re broke things.
This solved the issue for me. I had exactly the reported problems (no connection via wifi, everything worked when using mobile or VPN). Forgetting the network and reconnecting didn't help either, but changing the MTU to 1472 resolved all my issues. Thanks!
 
I've recently come across this issue whereby my home automation works when using the phones mobile data but when at home I apps failed to connect to the home systems when using the home wifi. I was also not able to screen mirror to my new TV.
I've found a solution which should work you all.

The issue is with the IP address assigned to your phone, it needs to be on the same IP range as the devices you are trying to connect to locally.
So for example if your home devices are all ip range 192.168.4.xxx and your phone has been automatically assigned an ip of 192.168.5.yyy then this issue will occur.
The solution is to assign a static IP for your phone when using the home wifi and make sure the IP is in the range 192.168.4.xxx
Just goto settings > connections > wifi then click on the settings cog wheel against your wifi then click on Advanced and update to an unused static ip on the range your other devices are using at home and put in correct subnet mask (check your router for this or another device).
 
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