I want to turn my raspberry pi 3 witch installed Raspbian OS to access point and client to access wifi and bridge these two each other (in this question it's better to skip this bridge part). Exactly, I want to change on-board Wi-Fi to access point and add a wifi dongle to raspberry pi 3 and get connected to some SSID.
I dig in the deep of the internet and try all solution that I find but none of them work correctly. Some time this two wifi worked great, but after each reboot because of priority of these two in load base system, all systems I work on it broke and no response.
Can you help me, how can I catch this situation and configure raspberry pi 3 to work this two wifi correctly beside each other and does not make a problem after each reboot or shutdown?
One of the best topics I found on the internet was this link, but unfortunately after while, its better say after each shutdown wlan0 and wlan1 broke some time and its not stable, again I search why its happening and find out, after each reboot or shutdown Linux system boot wifi dongle faster than wifi onboard and this case to break the configuration we made.