Problems in creating wifi hotspot in ubuntu 16.04 for android device

Solution 1:

To avoid the error "Your adapter does not support AP (master) mode" you should use another wi-fi card driver with AP mode support instead the default driver. How to do it ?

  1. Detect the model of your wireless card:

lspci -nn

You should find a string like this:

09:00.0 Network controller [0280]: Broadcom Limited BCM4312 802.11b/g LP-PHY [14e4:4315] (rev 01)

  1. Find the card manufacturer in this list:

https://wireless.wiki.kernel.org/en/users/drivers

and select the item with "yes" in the "AP" column. For example, I've selected "b43" driver for my BCM4312 LP-PHY card:

https://wireless.wiki.kernel.org/en/users/drivers/b43

  1. Find your card in this list by Device ID ([14e4:4315] e.g.)

  2. If you see "yes" in the "Supported?" column, you can use this driver for your wi-fi card. Otherwise, you should look for another driver. If the suitable driver is absent, you cannot create wifi hotspot in Linux. :-(

The driver install method depends of your card model. If you'll say me the model, I'll try to help you.