User-Agent:       Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:48.0) Gecko/20100101 Firefox/48.0
Build Identifier: 

I was previously running Fedora 23 and after upgrading to kernel 4.6 (previously working on 4.5.4 if I remember correctly) the Intel NICs fail to initialise their drivers and cannot be observed in dmesg. However an lspci shows they are visible to the OS. I have since upgraded to Fedora 24 (with the use of the 4.5 kernel) in the hopes that this bug had been fixed but to no avail. I have searched for similar bugs and couldn't find anything. lsmod shows the igb module has been loaded however nothing is using it. I am currently using a USB ethernet adapter as a work around in the interim.

Reproducible: Always

Steps to Reproduce:
1. Turn on computer
2. Log in
3. No network interfaces shown in Network Manager
4. No network interfaces shown in nmcli or ifconfig
Actual Results:  
No network interface card and thus no network connection

Expected Results:  
Functioning network connectivity

[owen@oz-srv ~]$ lspci | grep Network
04:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)
05:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)
06:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)
07:00.0 Ethernet controller: Intel Corporation I210 Gigabit Network Connection (rev 03)
[owen@oz-srv ~]$ lsmod | grep igb
igb                   196608  0
ptp                    20480  1 igb
dca                    16384  1 igb
i2c_algo_bit           16384  1 igb

[owen@oz-srv ~]$ dmesg | grep thernet
[    1.819864] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.3.0-k
[    1.846028] usb 5-2: Product: Apple USB Ethernet Adapter
[    5.780734] asix 5-2:1.0 eth0: register 'asix' at usb-0000:08:00.0-2, ASIX AX88772 USB 2.0 Ethernet, f4:f9:51:f1:36:83

[owen@oz-srv ~]$ nmcli dev status
DEVICE    TYPE      STATE      CONNECTION 
enp8s0u2  ethernet  connected  enp6s0     
lo        loopback  unmanaged  --  

[owen@oz-srv ~]$ systemctl status network
● network.service - LSB: Bring up/down networking
   Loaded: loaded (/etc/rc.d/init.d/network; bad; vendor preset: disabled)
   Active: inactive (dead)
     Docs: man:systemd-sysv-generator(8)

[owen@oz-srv ~]$ systemctl status NetworkManager
● NetworkManager.service - Network Manager
   Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; enabled; vendor preset: enabled)
   Active: active (running) since Wed 2016-09-21 20:52:06 BST; 12min ago
     Docs: man:NetworkManager(8)
 Main PID: 1019 (NetworkManager)
    Tasks: 4 (limit: 512)
   CGroup: /system.slice/NetworkManager.service
           ├─1019 /usr/sbin/NetworkManager --no-daemon
           └─1172 /sbin/dhclient -d -q -sf /usr/libexec/nm-dhcp-helper -pf /var/run/dhclient-enp8s0u2.pid -lf /var/lib/NetworkManager/dhclient-8f9baa70-1a1f-4311-818b-ec0c73846d8d-enp8s0u2.lea

Sep 21 20:52:13 oz-srv.julien NetworkManager[1019]: <info>  [1474487533.0208] dhcp4 (enp8s0u2): state changed unknown -> bound
Sep 21 20:52:13 oz-srv.julien NetworkManager[1019]: <info>  [1474487533.0226] device (enp8s0u2): state change: ip-config -> ip-check (reason 'none') [70 80 0]
Sep 21 20:52:13 oz-srv.julien NetworkManager[1019]: <info>  [1474487533.0349] device (enp8s0u2): state change: ip-check -> secondaries (reason 'none') [80 90 0]
Sep 21 20:52:13 oz-srv.julien NetworkManager[1019]: <info>  [1474487533.0353] device (enp8s0u2): state change: secondaries -> activated (reason 'none') [90 100 0]
Sep 21 20:52:13 oz-srv.julien NetworkManager[1019]: <info>  [1474487533.0354] manager: NetworkManager state is now CONNECTED_LOCAL
Sep 21 20:52:13 oz-srv.julien NetworkManager[1019]: <info>  [1474487533.0372] manager: NetworkManager state is now CONNECTED_SITE
Sep 21 20:52:13 oz-srv.julien NetworkManager[1019]: <info>  [1474487533.0373] policy: set 'enp6s0' (enp8s0u2) as default for IPv4 routing and DNS
Sep 21 20:52:13 oz-srv.julien NetworkManager[1019]: <info>  [1474487533.0386] device (enp8s0u2): Activation: successful, device activated.
Sep 21 20:52:13 oz-srv.julien NetworkManager[1019]: <info>  [1474487533.0389] manager: startup complete
Sep 21 20:52:13 oz-srv.julien NetworkManager[1019]: <info>  [1474487533.2606] manager: NetworkManager state is now CONNECTED_GLOBAL

[owen@oz-srv network-scripts]$ sudo ifup enp4s0
Error: Connection activation failed: No suitable device found for this connection.
[owen@oz-srv network-scripts]$ sudo ifup enp5s0
Error: Connection activation failed: No suitable device found for this connection.