public network

inspiron 15-5578 windows 10 when i log on with my laptop kaserpersky 2018 shows a pop up saying

You are connected to insecure public nettwork bthub------- my laptop is set to private network and kaspersky is set to trusted network

. my bt hub is dual band, i have change the hub password and wireless key but that as

not stopped the pop up.i have done a factory reset on the hub and still get the issue.

i have run the dell test on the network card and it passed.

h have run f secure hub checker and it pased

anyone got any clue's