Wireless not working after clean install cent 7.4

Issues related to configuring your network
unix1adm
Posts: 153
Joined: 2010/02/23 13:27:06

Wireless not working after clean install cent 7.4

Postby unix1adm » 2018/01/18 12:00:17

Not sure if this should go in the CenOS forum or the wireless/networking area.
Sorry if wrong place. Please move Admin if you think it should be different.
----------------------

Problem description

I have installed CentOS 7.4 on several laptops to play with.
One is a Dell m4500, IBM think pad R61 (quantity 3) and an HP probook 4540.

All seem to have the same issue EXCEPT THE HP PROBOOK 4540.

For the purpose of this issue I will focus on the Dell M4500 to keep it simple. If there is such a thing

I loaded clean from the DVD and during the OS load it saw the networking.
I was able to enter in my SSID and my passcode etc.

When the system rebooted to the final configuration screen it saw the wireless fine.

Booted to multi user mode and no wireless when I logged in with either my ID or root.

If I look at the /etc/sysconfig/network-scripts I see 2 listings for the wireless.


fcfg-em1 ifdown-post ifup-ib ifup-TeamPort
ifcfg-home ifdown-ppp ifup-ippp ifup-tunnel <<<<<<<
ifcfg-home_1 ifdown-routes ifup-ipv6 ifup-wireless <<<<<< Not sure why there is 2 listings. Edit one is ipv4 one ipv6.

ifcfg-lo ifdown-sit ifup-isdn ifup-wireless.orig
ifdown ifdown-Team ifup-plip init.ipv6-global
ifdown-bnep ifdown-TeamPort ifup-plusb keys-farscape
ifdown-eth ifdown-tunnel ifup-post network-functions
ifdown-ib ifup ifup-ppp network-functions-ipv6
ifdown-ippp ifup-aliases ifup-routes
ifdown-ipv6 ifup-bnep ifup-sit
ifdown-isdn ifup-eth ifup-Team


So it does appear to be there.

When I go into network manager to try and use it NO wireless networks are found. It just spins and as if it were trying to find networks. (GUI desktop app)

Also I notice on the laptop the wireless light is off. It was on during the initial load.

wlp3s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 00:24:d7:51:23:6c txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0




[root@labsystem1 ~]# ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT qlen 1
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: em1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT qlen 1000
link/ether 00:26:b9:c0:e0:3d brd ff:ff:ff:ff:ff:ff
3: wlp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN mode DEFAULT qlen 1000 <<< Notice the DOWN here...>>>>>
link/ether 00:24:d7:51:23:6c brd ff:ff:ff:ff:ff:ff
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN mode DEFAULT qlen 1000
link/ether 52:54:00:7d:35:34 brd ff:ff:ff:ff:ff:ff
5: virbr0-nic: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast master virbr0 state DOWN mode DEFAULT qlen 1000
link/ether 52:54:00:7d:35:34 brd ff:ff:ff:ff:ff:ff


--------------------
So it tells me the wireless is down and wont let me activate it.
not sure why. I tried to bring it up.
ip link set wlp3s0 up

Sorry I don't remember the reply back. I can add that later.

[root@labsystem1 ~]# nmcli general status
STATE CONNECTIVITY WIFI-HW WIFI WWAN-HW WWAN
connected full enabled enabled enabled enabled


root@labsystem1 ~]# nmcli connection show
NAME UUID TYPE DEVICE
em1 f093f477-5952-45e7-8d4f-189b363f7921 802-3-ethernet em1
virbr0 84fa57e0-3615-4d6d-b293-de8b1e69dadc bridge virbr0
home 530f27fc-c2b5-420d-b82e-a674e462a2b0 802-11-wireless --
home 1 7420d1a4-d562-4389-8443-9b4eb06129cb 802-11-wireless --


root@labsystem1 ~]# rpm -q NetworkManager-wifi
NetworkManager-wifi-1.8.0-11.el7_4.x86_64


Several posts said that there could be an issue with network manager but I have unistalled and reinstalled it. Same issue.

[root@labsystem1 ~]# nmcli --ask dev wifi connect home
Error: No network with SSID 'home' found.

root@labsystem1 ~]# dmesg | egrep -i "intel|wireless|iwlwifi|wlp3s0"
[ 0.000000] ACPI: DMAR 00000000cf35ff18 00080 (v01 INTEL CP_DALE 00000001 INTL 00000001)
[ 0.033068] smpboot: CPU0: Intel(R) Core(TM) i7 CPU M 620 @ 2.67GHz (fam: 06, model: 25, stepping: 05)
[ 0.134863] Performance Events: PEBS fmt1+, 16-deep LBR, Westmere events, Intel PMU driver.
[ 1.047252] intel_idle: MWAIT substates: 0x1120
[ 1.047253] intel_idle: v0.4.1 model 0x25
[ 1.047289] intel_idle: lapic_timer_reliable_states 0xffffffff
[ 1.935291] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
[ 1.935295] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 2.168678] e1000e 0000:00:19.0 eth0: Intel(R) PRO/1000 Network Connection
[ 31.085250] intel ips 0000:00:1f.6: CPU TDP doesn't match expected value (found 25, expected 29)
[ 31.085414] intel ips 0000:00:1f.6: failed to get i915 symbols, graphics turbo disabled until i915 loads
[ 31.085624] intel ips 0000:00:1f.6: IPS driver initialized, MCP temp limit 90
[ 31.441564] Intel(R) Wireless WiFi driver for Linux
[ 31.441567] Copyright(c) 2003- 2015 Intel Corporation
[ 31.446360] iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
[ 31.446434] iwlwifi 0000:03:00.0: irq 28 for MSI/MSI-X
[ 31.455310] snd_hda_intel 0000:00:1b.0: irq 29 for MSI/MSI-X
[ 31.455468] snd_hda_intel 0000:01:00.1: Disabling MSI
[ 31.455480] snd_hda_intel 0000:01:00.1: Handle vga_switcheroo audio client
[ 31.499683] input: HDA Intel MID Dock Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input9
[ 31.499804] input: HDA Intel MID Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
[ 31.499875] input: HDA Intel MID Dock Line Out as /devices/pci0000:00/0000:00:1b.0/sound/card0/input11
[ 31.499944] input: HDA Intel MID Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input12
[ 31.677481] iwlwifi 0000:03:00.0: loaded firmware version 9.221.4.1 build 25532 op_mode iwldvm
[ 31.720359] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG disabled
[ 31.720364] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS enabled
[ 31.720366] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled
[ 31.720369] iwlwifi 0000:03:00.0: Detected Intel(R) Centrino(R) Ultimate-N 6300 AGN, REV=0x74
[ 31.722025] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 32.141623] iTCO_wdt: Intel TCO WatchDog Timer Driver v1.11
[ 57.893574] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 57.900452] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 57.900555] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[ 58.124203] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 58.131076] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 58.131172] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1

[ 58.221995] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
[ 235.039287] iwlwifi 0000:03:00.0: Device reached critical temperature - ucode going to sleep! <<<<<<<<<<< Why or how could this be if the system was just installed and booted? Could this be a bug reporting back wrong temp? CentOS6.9 never had errors like this. I put that drive back in and it was fine.

[ 247.134359] iwlwifi 0000:03:00.0: Not sending command - CT KILL
[ 3099.968684] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
[ 3099.969139] iwlwifi 0000:03:00.0: Not sending command - CT KILL
[ 3099.969146] iwlwifi 0000:03:00.0: Error clearing ASSOC_MSK on BSS (-5)
[ 3099.985962] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 3099.992848] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 3099.992968] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[ 3100.214049] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 3100.220940] iwlwifi 0000:03:00.0: L1 Enabled - LTR Disabled
[ 3100.221037] iwlwifi 0000:03:00.0: Radio type=0x0-0x3-0x1
[ 3100.311895] IPv6: ADDRCONF(NETDEV_UP): wlp3s0: link is not ready
[root@labsystem1 ~]#


[root@labsystem1 ~]# systemctl status NetworkManager
● NetworkManager.service - Network Manager
Loaded: loaded (/usr/lib/systemd/system/NetworkManager.service; disabled; vendor preset: enabled)
Active: active (running) since Mon 2018-01-15 09:14:51 EST; 9min ago
Docs: man:NetworkManager(
Main PID: 5109 (NetworkManager)
CGroup: /system.slice/NetworkManager.service
├─5109 /usr/sbin/NetworkManager --no-daemon
└─5198 /sbin/dhclient -d -q -sf /usr/libexec/nm-dhcp-helper -pf /v...

Jan 15 09:14:53 labsystem1 NetworkManager[5109]: <info> [1516025693.3579] d...'
Jan 15 09:14:53 labsystem1 NetworkManager[5109]: <info> [1516025693.3579] d...'
Jan 15 09:14:53 labsystem1 NetworkManager[5109]: <info> [1516025693.3580] d...d
Jan 15 09:14:53 labsystem1 NetworkManager[5109]: <info> [1516025693.3595] d...]
Jan 15 09:14:53 labsystem1 NetworkManager[5109]: <info> [1516025693.3603] d...]
Jan 15 09:14:53 labsystem1 NetworkManager[5109]: <info> [1516025693.3627] d...]
Jan 15 09:14:53 labsystem1 NetworkManager[5109]: <info> [1516025693.3631] m...E
Jan 15 09:14:53 labsystem1 dhclient[5198]: bound to 10.1.10.18 -- renewal in....
Jan 15 09:14:53 labsystem1 NetworkManager[5109]: <info> [1516025693.4086] d....
Jan 15 09:14:53 labsystem1 NetworkManager[5109]: <info> [1516025693.4130] m...L
Hint: Some lines were ellipsized, use -l to show in full.






[root@labsystem1 ~]# lspci -nnk | grep -i net -A2
00:19.0 Ethernet controller [0200]: Intel Corporation 82577LM Gigabit Network Connection [8086:10ea] (rev 05)
Subsystem: Dell Device [1028:040c]
Kernel driver in use: e1000e
--
03:00.0 Network controller [0280]: Intel Corporation Centrino Ultimate-N 6300 [8086:422b] (rev 35)
Subsystem: Intel Corporation Centrino Ultimate-N 6300 3x3 AGN [8086:1121]
Kernel driver in use: iwlwifi

[root@labsystem1 ~]# rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: dell-wifi: Wireless LAN
Soft blocked: no
Hard blocked: no

When I had Cenos6.9 on the systems there was no issue at all seeing the wireless.
I know 7 is a completely new release . Just thought I would mention it.

I did a yum update on the laptop and there is no updates listed for anything. So it should be at latest level.

Linux labsystem1 3.10.0-693.11.6.el7.x86_64 #1 SMP Thu Jan 4 01:06:37 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

-------------------

Side note :

I do have another HP laptop that i seeing wireless and it is on 7.4

This is the kernel info for that. if it helps.

Linux LT102 3.10.0-693.11.6.el7.x86_64 #1 SMP Thu Jan 4 01:06:37 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

Let me know what other logs you would like to see.

It must me something disabling the hardware.
-----------------
My HP shows the wireless light on Dell does not. Makes me think the radio is off.
I did try a clean install and same result with and without patching from the CD.
During the install the Dell wireless light was on no problem.

I appreciate you help on this matter.
Thank you