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Authentication error occurred

Anonymous
Not applicable

My Samsung Galaxy 5 connects to the router initially, but after a short period, it disconnects with the message "authentication error occurred." I have re-booted the router and the phone but it still keeps happening. All the other devices in the house work perfectly, including another Samsung mobile. I have deleted and re-added the router information but it still keeps happening. Anyone got any ideas or suggestions.

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Anonymous
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someone suggested turning the 'flight mode' switch on and then off again. I did this about 36 hours ago and, amazingly - this far anyway - it seems to be working... 🙂

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MI5
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How short is the "short period"?
An authentication error is usually the wrong password.
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

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Anonymous
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usually 10 minutes or so but sometimes a bit longer....wifi password is correct since all other devices connect and work
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MI5
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Have turned the router off and back on again to clear the dns list?
Do you also know what router you have and if it's transmitting on 2.4 or 5ghz?
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)
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Marjo
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Hi @Anonymous, please let us know how you're getting on with this? slight_smile

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Anonymous
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someone suggested turning the 'flight mode' switch on and then off again. I did this about 36 hours ago and, amazingly - this far anyway - it seems to be working... 🙂

View solution in original post

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jonsie
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Excellent news and so simple 😀

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MI5
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Every day's a school day slight_smile
Was that all you did or anything else?
I have no affiliation whatsoever with O2 or any subsidiary companies. Comments posted are entirely of my own opinion. This is not Customer Service so we are unable to help with account specific issues.

Currently using:
OnePlus 6 (O2 & Sfr), Z3 Tablet (Three UK), iPhone 8+ (EE)
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Marjo
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That's great to hear, thanks for coming back to update us about it. slight_smile

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