I can’t turn off sharing location. When I try and turn button off keeps saying not available no server connection

Check your WiFi Router / Modem for --> Recommended settings for Wi-Fi routers and access points ...

Connecting to Wifi is the first part and then getting connected to the Internet is the second

1. If you connect to Wifi, doesn't necessarily mean you are connected to the internet. If you are not connected to wifi could be a problem with iPhone settings or Router/Modem Settings
2. If you are not connected to the internet is the sole issue of Router / Modem Settings. Contact your ISP immediately

For your Internet connection.

• Over Cellular: contact your Carrier (Cellular Service Provider). The agency who issued the SIM to you
• Over WiFI: Contact your ISP (Internet Service Provider), the agency who provided the Internet Service on your Modem/Router to you

However --> Connect iPhone to the Internet - Apple Support

I have the same problem . I did a complete reset it let me turn it off . Later on that day i check it and it was back on and same prob wont let me turn it off . Says cant connect to server , yet everything elec. is connected and working. Many times things on my phone turn them selves on.

I use data all the time i do not have wi fi . I have unlimited data. It worked fine for around half a year.