NetworkManager - lost connection after upgrade

[spinus]

Issue description

After upgrading to latest NixOS I lost wifi connection. Network manager is not showing network card (usb dongle), the driver is ok and "ip addr" shows the card.

Problem is known:

• https://bbs.archlinux.org/viewtopic.php?id=210868
• https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=817115

Steps to reproduce

Upgrade nixpkgs to 7465bcd or later (but problem appeared lot earlier)

Technical details

Example of broken system:

• System: (NixOS, 16.09 unstable)
• Nix version: nixos-16.09pre82105.7465bcd
• Nixpkgs version: 16.09pre82105.7465bcd

Example of working system:

• System: (NixOS, 16.03)
• Nix version: 16.03pre75064.faae09f (Emu)
• Nixpkgs version: 16.03pre75064.faae09f

[domenkozar]

@spinus can you post some logs? Like journalctl -b network-manager?

[spinus]

@domenkozar
network manager doesn't show any logs for that device (-b shows only my other network card activities).

After I attach USB dongle that happens:

May 14 15:07:37 zeppelin kernel: usb 3-2: new high-speed USB device number 20 using xhci_hcd
May 14 15:07:38 zeppelin kernel: usb 3-2: New USB device found, idVendor=0b05, idProduct=1786
May 14 15:07:38 zeppelin kernel: usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
May 14 15:07:38 zeppelin kernel: usb 3-2: Product: ASUS EZ N Network Adapter
May 14 15:07:38 zeppelin kernel: usb 3-2: Manufacturer: Manufacturer Realtek 
May 14 15:07:38 zeppelin kernel: usb 3-2: SerialNumber: 00e04c000001
May 14 15:07:38 zeppelin kernel: r8712u: register rtl8712_netdev_ops to netdev_ops
May 14 15:07:38 zeppelin kernel: usb 3-2: r8712u: USB_SPEED_HIGH with 4 endpoints
May 14 15:07:38 zeppelin kernel: usb 3-2: r8712u: Boot from EFUSE: Autoload OK
May 14 15:07:38 zeppelin kernel: usb 3-2: r8712u: CustomerID = 0x0010
May 14 15:07:38 zeppelin kernel: usb 3-2: r8712u: MAC Address from efuse = 54:04:a6:e0:12:8d
May 14 15:07:38 zeppelin kernel: usb 3-2: r8712u: Loading firmware from "rtlwifi/rtl8712u.bin"
May 14 15:07:38 zeppelin mtp-probe[28328]: checking bus 3, device 20: "/sys/devices/pci0000:00/0000:00:14.0/usb3/3-2"
May 14 15:07:38 zeppelin mtp-probe[28328]: bus: 3, device: 20 was not an MTP device
May 14 15:07:38 zeppelin kernel: r8712u 3-2:1.0 wlp0s20u2: renamed from wlan0
May 14 15:07:38 zeppelin kernel: IPv6: ADDRCONF(NETDEV_UP): wlp0s20u2: link is not ready
May 14 15:07:39 zeppelin kernel: r8712u 3-2:1.0 wlp0s20u2: 1 RCR=0x153f00e
May 14 15:07:39 zeppelin kernel: r8712u 3-2:1.0 wlp0s20u2: 2 RCR=0x553f00e
May 14 15:07:39 zeppelin kernel: IPv6: ADDRCONF(NETDEV_UP): wlp0s20u2: link is not ready
May 14 15:07:39 zeppelin kernel: IPv6: ADDRCONF(NETDEV_UP): wlp0s20u2: link is not ready
May 14 15:07:39 zeppelin wpa_supplicant[7266]: nl80211: Could not configure driver mode
May 14 15:07:39 zeppelin wpa_supplicant[7266]: nl80211: deinit ifname=wlp0s20u2 disabled_11b_rates=0
May 14 15:07:39 zeppelin kernel: IPv6: ADDRCONF(NETDEV_UP): wlp0s20u2: link is not ready
May 14 15:07:43 zeppelin wpa_supplicant[7266]: wlp0s20u2: Reject scan trigger since one is already pending

[domenkozar]

Is netowork-manager even running? systemctl --failed

[spinus]

Yes, completly, I'm using it for the other card wifi card which is working (internal intel one) and ethernet.

[Profpatsch]

triage: I’m gonna close this because the thread stalled, feel free to reopen.