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Original topic:

Samsung S10 weird selective wifi and network internet connection issues

(Topic created on: 16-02-2021 11:24 AM)
First Poster
Galaxy S10 Series

I have a new unlocked Samsung S10 and I am having all kinds of connection issues. If anyone can help I'd be very greatful.

Heres the context:

I have connected it to my Huawei b525s-23a mobile router. Its shows a good internet connection but there are very strange issues with the connection. (I am currently connected to the same router on my Lenovo Yoga laptop without issue - I get a very fast connection (50 down/15 up)

I also have a voxi sim with mobile data which worked very well in my Moto G4, decent connection and 4G in my house where I am now.

The S10 has a bevy of specific connection issues


  • Instagram and youtube apps work flawlessly
  • Internet browsers are useless : sometimes they manage to load a google result but generally return an error about the connection being interrupted or disconnected other websites (clicked through google results) always "time out" in this way - (I've tried samsung internet, Chrome, Firefox, Firefox Focus) 
  • BeyondPod has managed to update and download podcast feeds but was a bit flakey.
  • Spotify wont load the start page
  • Whats app often uses mobile data instead of wifi  as it says my wifi is not working. but sometimes it doesnt say this.
  • google play works fine to download apps and updates
  • the Pintrest app works fine.
  • whatsapp sends and recieves messages fine.
  • google photos loads photos in a blink


On Mobile data:

  • Youtube and instagram apps work totally fine.
  • Pinterest is not really working,
  • Chrome will connect to googe results and google images fine but wont load other web pages. 
  • Other browsers are much more flakey even at loading goggle results - gernerally they wont.
  • whatsapp sends and recieves messages fine


Network connection

  • Calls go through fine and when calling I have 4 bars of connection - at other times I have 1 bar.
  • Text messages go through fine
  • Other apps report network issues (I'm not sure if these are to do with the mobile network or internet usage or what)-
  • I cannot register Signal on my phone as it either ownt connect to the network or their web based "human check" times out -
  • I cant register with bixby as it says (after spinning its wheel for a long while) it cannot access my network to check my account


Things I have tried (mostly multiple times):

  • restarting the phone
  • resetting the network settings
  • disconnecting the wifi, forgetting the network, restarting
  • assigining static ip
  • Assiging a static mac address
  • Using wifi without the sim
  • Using mobile data with the wifi turned off
  • clearing my DNS (airplane mode on and off, and using Chrome://)
  • probably some other things I've forgotten.

Could it be a antivirus issue? - I havent installed one but the phone has some kind of build in McAffee security that I cant see how to turn off.

I just dont understand it - its driving me crazy TBH



Helping Hand
Galaxy S10 Series
try this clear cache please the method is same on s10 plus. After this if you have still problem then do factory reset. I really hope first thing will be sorting this problems
First Poster
Galaxy S10 Series

how do i clear the cache? thanks


First Poster
Galaxy S10 Series

just noticed another odd detail -  under Sim Card Status it lists the Mobile Network State as disconected - is that normal?

First Poster
Galaxy S10 Series

OK I figured our how to wipe the cache partition using these instructions:

It has had no effect.

I'll try a factory reset later when I'm not using my phone.