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S23 Ultra WiFi constant reconnection

(Topic created on: 03-11-2023 08:01 PM)
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evbt
Journeyman
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Hello everyone, 

Ever since I have applied the OneUI 6 update for the s23 ultra my WiFi at home has been constantly reconnecting. 

I have tried:
Forgetting the network and reconnecting
Restarting the router
Restarting the phone
Clearing the s23u device cache
Checking for updates in settings, play store, ans galaxy store

I understand there have been issues in the past with some people and the WiFi connection on WiFi 6 networks reported in the past but I have had this phone since launch with no issues until the latest OneUI 6 update. 

Is anyone else experiencing this? Is there a fix?

21 REPLIES 21
evbt
Journeyman
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Update: a factory reset didn't work. I performed the reset and connected to WiFi but almost immediately it started to disconnect and reconnect in a loop.

I had to revert to One UI 5.1 to have a stable WiFi connection.
justarandomperson
Navigator
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dafe mode? DAFE MODE?
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evbt
Journeyman
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Same thing in safe mode. Must just be a bug with my install of one ui as I've not seen many other people say they have the same issue
PureMAD4
Explorer
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After the one UI 6 update I keep getting the really slow wifi speeds and have to reboot everything to get it working again. It's really frustrating plus I never had any issues on the beta
Starone
Pathfinder
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Yep s23 ultra ui6.0 is 200 to 300meg slower than my s20 ultra running one after the other both with 1.2gig wifi connections to a 1gig Internet, also 2 to 3 times a day s23 drops wifi and uses mobile 4g won't go back without stoping wifi on phone and starting it again, whereas s20 still connected no issue at all.
Starone
Pathfinder
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I have now cleared the cash on samsung core services, secure wifi, and network unlock, then restarted phone, and so far I have been connected to wifi6 for 2 days with no drop which is an improvement
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Starone
Pathfinder
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Now that the s23 ultra is stable on the wifi I fi d that on a 1.2gig wifi6 connection the s23 can only receive between 500 and 560meg where the s20 is receiving 840 to 940meg so its way slower on the wifi
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Tusami
First Poster
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I have the same problem. Right after the big update. Hopefully they are working on a fix aws. 

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evbt
Journeyman
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I found out what was causing my issue.

I have a small firewall connected to my router, a Firewalla Blue. The firewalla takes all my network traffic and analyses it, to do this in a more easy way it does ARP spoofing so all devices sent their traffic to it.

I assume this must be causing issues with the s23 causing it to go into a reconnection loop when connected to my WiFi.

Everything returned to normal when I disconnected the firewalla.

It's weird there wasn't an issue with Oneui 5 or any other device on my network but I've disconnected it for now and I've had no issues since.
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lcz
First Poster
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Having the same issue, on both Samsung S23 Ultra devices in our household (both were updated this week).  Has anyone found a fix for this issue?  Hopefully Samsung release a patch quickly.

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