mobile data problem after updating to android 15 ui7

[Alirezadadmand]

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Serious lag and internet issues after One UI update (Android 15)

Hi everyone,
After updating to Android 15 and the new One UI, I’ve been experiencing major issues on my device. Gaming performance has dropped significantly with constant lag, and more importantly, I’m facing a strange internet issue.
Even though my phone shows a stable 4G+ signal, the internet completely stops working—I can’t even do a simple Google search. The only temporary fix is to toggle Airplane mode on and off.
A friend of mine with an S24 Ultra is having the exact same issue, so it doesn’t seem like an isolated case

idont know its a region problem or what 

buy i think is worth cheking

thanks you

[chelardo]

im experiencing same problem since update. My phone is S23

[Carolus_Rex]

Hi! I fixed my extremly low 5g internet speed by wiping the cash partition.

Here is a guide to it...

https://thedroidguy.com/wipe-cache-partition-on-samsung-galaxy-devices-running-android-12-or-above-1...

[Ofer-Tech]

Hi, 

I have the same issue & tracked this thread , I got a recommendation by our local Samsung team to update all application to latest versions. 

I have selectivity update some applications and  seems like update  "Google Wifi Provisioner "  solved the issue.

Please try it out and share 

[Seffie71]

Same, nothing will load on my mobile data, so I can't use GPS or anything either. Says 4g or 5g. Also having connectivity issues with Android Auto. Keeps disconnecting from my vehicle. Samsung we need a patch for this ASAP. Not wanting to do a full reset at all. Have tried some things but nothing worked.