Answer to "Microphone not working when on whatsapp call"I just rebooted iphone xs max and it restored contacts in dialler and also microphone was added back for whatsapp.
Answer to "Why is my hp laptop not connecting to wireless internet?"I figured that the spectrum cable modem was at fault as it was at a different frequency band. I added a netGear G band router to cable modem and my WiFi worked. First check WiFi connection from laptop to other WiFi networks to rule out problem with your laptop. The newer cable modem frequency is the problem.