Android Tablet won`t connect to internet

[#1]

I don`t use it much... but am testing somethings out, and the Lenovo Android Tablet, will not connect to the internet, so can`t make updates etc. I can make calls out on the phone side of it though. Here is the SIM Card Management page.

ASDA is the priority SIM, the same applies if ASDA is disconnected and 3UK is made the only  active SIM

When trying to use the browser, a page comes up with

You are not connected with the internet

[Refresh]       [Back]

                      Error status

                    Contact Miss UC

on tapping the Error status, it shows

According to "Network Status"  the WIFI is not enabled.

However..

           

Any suggestions as to how to solve this problem, please.

In simple terms as I am not an expert !

[#2 · Accepted solution]

Wifi maybe on but is it connected  ?

[#3]

If you are trying to use mobile data, check the apn settings are correct.

[#4]

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@MisterW   Been in the settings again, and it seems that the WIFI password needed to be reset,

All is connected to the internet now.

Thanks