Sony Xperia Z2 - Authentication problem when trying to connect

[Anonymous]

I am having authentication problems when my wifi is turned on. It says 'authenticating, then Authentication problem'

What do I need to do? How do I uninstall my internet?

[jonsie]

Long press on the wifi network you are trying to connect to then when the pop up appears, select forget network. Then when you select it again it will ask you to enter the network password again.

Sometimes switching off the wifi router and switching on again will clear any authentication  issues.

Do the same with the phone...off and on again.

[MI5]

Usually caused by an incorrect password. Remember that passwords are case sensitive too so make sure you use capital letters where required.

[Anonymous]

Hi @Anonymous are you still having authentication problems to connect?

[Anonymous]

Yes, I am still having authentication problems with mySony Xperia Z2.  Thanks for all your advice.!

[MI5]

What have you tried so far?

[Anonymous]

ThGreat stuff! Thanks very much indeed! I am now online again, authenticationproblemsresolved! Even the 02 Gurus I have been in contact with since Friday, have been unable to help me.  So, well done You!

[Anonymous]

Sorry, I am new to replying to the 02 Communitybut youhave just solved my problem when 02 Gurus have failed to resolve over the past four days!!! Thanks!

[MI5]

Great news - what exactly was the problem?

[Anonymous]

Awesome news @Anonymous