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Private DNS automatically switching to automatic

(Topic created: 11-23-2025 03:05 PM)
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userYHOTaozjfD
Asteroid
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Galaxy S25
On the T-Mobile 25 ultra model with the latest November update. At least once a day my private DNS gets switched to automatic and removes the custom one I have set up. Any fix?

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usereChkLciBUW
Cosmic Ray
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Galaxy S25
Possible solution. Go to Settings > Apps > Toggle On Show System Apps > Search for Device Services > Swith 'Modify System Settings' to 'Not Allowed'. Tested with rebooting the device, the manual DNS setting does not revert back to Automatic

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18 Replies
Necrozma
Constellation
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Galaxy S25
I'm having this problem too, also looking for a fix. Very annoying.
userYHOTaozjfD
Asteroid
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Galaxy S25
Let's hope there's a fix, the latest update maybe broke something
RDogg69
Constellation
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Galaxy S25
I am also having this problem. Mine is unlocked. Haven't had this problem until recently.
usereChkLciBUW
Cosmic Ray
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Galaxy S25
Same problem here with unlocked Samsung Galaxy S24 Ultra on Verizon
userzCfCRqdXWk
Constellation
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Galaxy S25
One ui8 SUCKS ...
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Cubed
Asteroid
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Galaxy S25

Happening on mine too. Galaxy S24 Ultra

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Bubo
Constellation
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Galaxy S25
This is happening to ke as well, and it has been extremely angering. This happens on cellular data and on WiFi. I have been visiting different family members, and unless every family members Wifi is doing the same thing, the cause of the change to automatic seems to be the Android or Samsung software.
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userYHOTaozjfD
Asteroid
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Galaxy S25
Guess we have to wait for a patch or something, but it's annoying. I already submitted my issue with Samsung
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eopb
Constellation
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Galaxy S25

Even after disabling "auto update system configurations" I lose my private DNS after restarts. A very frustrating regression. I do hope this is resolved soon ๐Ÿคž. Private DNS is very important to me, both for privacy and for DNS blocking 

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