I don't have problem in my android phones at the same time.
Just_Me_D Ambassador Team Leader, Senior Moderator Moderator Jan 8, 2012 58,414 311 83 Dec 1, 2015 #2 Reboot your iPhone, Wi-Fi Router and cable/DSL modem. Go to Settings → General → Reset and then select "Reset Network Settings" on your iPhone. When the process is complete, re-connect to your Wi-Fi network.
Reboot your iPhone, Wi-Fi Router and cable/DSL modem. Go to Settings → General → Reset and then select "Reset Network Settings" on your iPhone. When the process is complete, re-connect to your Wi-Fi network.