VoIP on wifi not working in sleep mode

Question

My calls don't come in, with voip on wifi, when my nexus 5 is in sleep mode. I went into settings to put "always keep wifi on" but no result.

When screen shuts down, my voip app seems to disconnect and even after reopening the phone i have to reactivate the voip app.

Android lollipop was installed the day i got my new phone so i can't tell if it's the new android version. Thinking about returning the phone to google.

I verified all the options in my app and on the phone itself. Does anyone have a solution to this, thanks for your help.

Answer 1

Try this:

1. Open your Settings.
2. Select Wifi (not the toggle option, but in the blank space). Note: The following option may be under Networks>More Settings, depending on your phone.
3. Open the Advanced Settings after pressing your menu key.
4. Activate Best WiFi Performance mode.