No Wifi

[KamAsh]

Hello,
I have Galaxy A7. Can someone please explain the light blue color symbol which says 'No Wifi', and appears all the time irrespective of wifi is on or off. Please see the screenshot.
I tried to open the icon but it doesn't open. Also tried to search in websites but no info.
I don't know if there's any unknown bug, please help.

[starmoon]

check in settings there it showing wifi name or not

[KamAsh]

Checked the settings, there are no any wifi names or anything else.
Can someone explain please.

[starmoon]

how long you are using this mobile when did last time you have updated