WiFi connection problems

[Trina1]

I have a Sony Xperia X and whenever I try to connect to the Wifi at work with my username and password it won't let me connect without selecting a CA certificate option. However, when I do try to select either of these it comes up with an authentication error.

I have contact my work helpdesk but they say I'm the only one with the problem so it must be an issue with my device.

Any suggestions??

[CameronT]

Hi @Trina1, welcome to the community.

Try this. Go to Settings > Lock screen & security > Clear credentials. Then try to connect again.

[Trina1]

Just tried this, but unfortunately no luck!

[Trina1]

I've just tried this but unfortunately it's not helped.

Thanks very much though!

[CameronT]

@Trina1,

Because it's a work Wi-Fi we cannot do any of the testing on the router, so let's try testing the phone in safe mode and see if it still happens.

[Trina1]

I've just tried this as well, but unfortunately no luck. Thanks very much though!

If I could just find a way to get rid of the CA certificate option when I'm logging in I think it would work. When I sign in with another android device it just asks for my username and password and it works fine.

[rogie06]

Also in my xperia xz, when my phone is in android 6.0 it will connect to our company wifi, then after i update to 7.0 thats the time the connect button is disabled.

[CameronT]

@Trina1, 

The network will be asking for the certificate, it seems like your phone doesn't have the right one installed. There are hundreds of them so I don't have a way to know exactly which certificate is correct.

Try back up your device then run a software repair using Xperia Companion. This will take your phone back to default, but hopefully reinstate any missing certificates. Test it before you restore your back up.

@rogie06,

Is yours asking for CA Certificates too?

[Trina1]

Hi,

I've followed your advice and I tried connecting again today.

It still asked me for  the CA certificate, but when I selected ignore it let me connect, whereas before it was coming up with an authentication error.

Thanks very much!!