Wi-Fi Wrongly Displaying "Incorrect password"

[PhoneHelperUK]

Hi All.

Bit of a weird one, this.

My phone and an S22 Ultra which are both connected to the same WiFi network, and have both worked for over a year now, are beginning to say "Incorrect password" whenever I connect to the network.

Simply, this is surely because of a mistyped password? Well, it cannot be, as the password has not changed since I put it in, and since it has worked for a year, this has to be the nearest "cover up" message for a more major issue.

No other devices on the WiFi have this problem. There are three other Samsung devices (Note3, A5, S20 FE) and all have no problems. Not a problem with the WiFi itself.

Done the basic things - restarted the phone, removed all known WiFi networks, turned off intelligent features etc etc.

Issue still occurs.

At all costs possible, I would like to avoid performing a factory reset. It's a complicated process and will use up a weekend, which may lead to no fix.

Any advice?

Many thanks!

[barbkascsak]

Apokai has the solution. Haven't had an issue since we followed his advise. 2 Newer Samsung phones now connect automatically without issue.

[AkNick]

I tried that in the past. Now I just reboot my phone and it seems to clear up. It's still annoying though.

[Jollydeath]

A54 Randomly had same issue and had to manually click on the network to connect at which point it connected so obviously the password wasn't wrong. Seems strange.

[ThinkSmart]

I had this issue and could not figure it out.  Using an Android phone and could not connect to wifi after installing a 6E gateway.  Finally, went into VPN settings on my phone and turned 'Private DNS' from "Automatic" to "Off".  I then 'forgot' the network and reconnected and it worked.

[Bigkieffer]

Same issue but I don't have that 3rd app Atom on my phone, only X and Best Buy. Gonna remove Best Buy and see what happens. 

[KevL1]

I contacted Samsung support with the same issues and they had me reset my Mobile Network Settings. This fixed the issue at least temporarily. If it happens again I will go back to support. 

Settings, General Management, Reset, Reset Mobile Network Settings

[Aide199a]

I've just purchased the Samsung S25+ and I get exactly the same proplem - Incorrect Password

I've checked, double checked and tripple checked the password and it's correct.

I have tried all the suggestions on this thread and the same issue remains.

I've even reset my router, created a new SSID and I still have the same problem.

I also have a Samsung S24FE - connetcs to the network without any issues whasoever.

HELP!!

[Aide199a]

I give up - I have tried everything I can think of to try and get this to work.

The last thing I tried, was to set up my phone as a new phone and not use smart switch - the problem is still there and keeps saying 'Incorrect Password'

There must be a fix to this problem!!!

[KevL1]

Go to Settings on your phone, General Management, Reset, Reset Mobile Network Settings, Reset Settings

Hopefully this will fix the problem for now. I believe that Samsung still needs to fix this. Resetting your Mobile Network Settings is a temporary fix in my opinion. 

[AkNick]

With one of the most recent updates I have since had no issue with this. I'm not sure if they finally fixed the bug or not but I haven't had this happen in a while. Still got a A54 5G.