My IP camera is not connecting to TLWR845N router. It is able to connect to mobile phones wifi hotspot but not to the router. I tried changing encryption/security, ensured that client isolation is not

Hi, My Smitch IP camera is not connecting to WR845N router. It is able to connect to wifi hotspot on my mobile phone but unable to connect to router. Please suggest way out.

Model : Hardware Version : Firmware Version : ISP : Hi I am struggling to connect to my WiFi. It worked wonderfully for hours and then suddenly stopped when I tried to change the host name and passwor