Comment # 10 on bug 944978 from Alberto Zacchetti

Hi, maybe this time I found the real problem.
I noticed in the log, posted to you before, the following line:

Sep 25 13:35:13 linux-9zit.site kernel: rtl8821ae:rtl8821ae_download_fw():<0-0>
Firmware is not ready to run!

so I decided to blacklist this driver (rtl8821ae = Realtek 8821ae WiFi Lan) and
NetworkManager no longer blocked the system.
With 13.2, though, everything work fine. I also noticed, in 42.1, some
difficulties in connection with the Ethernet interface (Realtek RTL8111/8168,
driver r8169): it takes a long time to get the ip address with DHCP (with 13.2
is instantaneous).
Do you have any suggestions?