DHCP Client failure [SOLVED]

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rromano010
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Posts: 2
Joined: Sun Dec 04, 2016 7:38 am

DHCP Client failure [SOLVED]

Post by rromano010 »

Hi all, I am new to this forum, I am not new to Linux.
Few day ago started got trouble thru WIFI connection to mobile router, I seen on the past when I was connected to WIFI connection was unstable after some time from some AP and never reconnect if forced to or stay connected few minutes then freeze again.
After that wifi got worst and never connect to mobile router so I connected a wired client and got surprise also cable network don't connect to so inspecting process I found DHCP client was no more working nor from command line.
Setting static address from command line or Network manager connection remain active for a long time without problem.
Has someone else experienced this issue?
Thank you very much.
Roberto

Code: Select all

inxi -Fxz

System:    Host: robertomint17-SVS1511C5E Kernel: 3.18.0-031800-generic x86_64 (64 bit gcc: 4.6.3)
           Desktop: Cinnamon 2.8.8 (Gtk 3.10.8~8+qiana)
           Distro: Linux Mint 17.3 Rosa
Machine:   System: Sony product: SVS1511C5E v: C60B1PPT
           Mobo: Sony model: VAIO Bios: Insyde v: R0142C5 date: 05/17/2012
CPU:       Quad core Intel Core i7-3612QM (-HT-MCP-) cache: 6144 KB
           flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 16761
           clock speeds: max: 3100 MHz 1: 2748 MHz 2: 2887 MHz 3: 2816 MHz
           4: 2759 MHz 5: 2786 MHz 6: 2801 MHz 7: 2923 MHz 8: 3040 MHz
Graphics:  Card-1: Intel 3rd Gen Core processor Graphics Controller
           bus-ID: 00:02.0
           Card-2: NVIDIA GK107M [GeForce GT 640M LE] bus-ID: 01:00.0
           Display Server: X.Org 1.15.1 drivers: intel (unloaded: fbdev,vesa) FAILED: nouveau
           Resolution: 1920x1080@59.9hz
           GLX Renderer: Mesa DRI Intel Ivybridge Mobile
           GLX Version: 3.0 Mesa 10.1.3 Direct Rendering: Yes
Audio:     Card Intel 7 Series/C210 Series Family High Definition Audio Controller
           driver: snd_hda_intel bus-ID: 00:1b.0
           Sound: Advanced Linux Sound Architecture v: k3.18.0-031800-generic
Network:   Card-1: Intel Centrino Advanced-N 6235
           driver: iwlwifi v: in-tree: bus-ID: 02:00.0
           IF: wlan0 state: down mac: <filter>
           Card-2: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
           driver: r8169 v: 2.3LK-NAPI port: 3000 bus-ID: 04:00.0
           IF: eth0 state: up speed: 100 Mbps duplex: full mac: <filter>
Drives:    HDD Total Size: 2000.4GB (31.1% used)
           ID-1: /dev/sda model: ST2000LM003_HN size: 2000.4GB
Partition: ID-1: / size: 428G used: 184G (46%) fs: ext4 dev: /dev/sda8
           ID-2: swap-1 size: 15.75GB used: 0.01GB (0%) fs: swap dev: /dev/sda5
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 66.0C mobo: N/A gpu: 52.0
           Fan Speeds (in rpm): cpu: N/A
Info:      Processes: 234 Uptime: 23:53 Memory: 4094.6/7886.6MB
           Init: Upstart runlevel: 2 Gcc sys: 4.8.4
           Client: Shell (bash 4.3.111) inxi: 2.2.28
Last edited by LockBot on Wed Dec 28, 2022 7:16 am, edited 2 times in total.
Reason: Topic automatically closed 6 months after creation. New replies are no longer allowed.
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deepakdeshp
Level 20
Level 20
Posts: 12334
Joined: Sun Aug 09, 2015 10:00 am

Re: DHCP Client failure

Post by deepakdeshp »

Is your router acting properly as a dhcp server?You can test by looking at tbe router configuration as per the router manual.
Usually it is http :192.168.1.1

Try connecting other device like your mobile phone etc by wi fi to the router.
If I have helped you solve a problem, please add [SOLVED] to your first post title, it helps other users looking for help.
Regards,
Deepak

Mint 21.1 Cinnamon 64 bit with AMD A6 / 8GB
Mint 21.1 Cinnamon AMD Ryzen3500U/8gb
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rromano010
Level 1
Level 1
Posts: 2
Joined: Sun Dec 04, 2016 7:38 am

Re: DHCP Client failure

Post by rromano010 »

Upgraded a lot of packet and also kernel, DHCP client restarted working and also WIFI too.
I got no time to test if WIFI was working with a fixed address, now all is ok and I don't wish tamper to test.
When failure appeared DHCP was working on both WIFI and cable.
Other device got addresses smoothly so no way to do more test to pinpoint problem.
About DHCP and address:
main wifi router 4G gateway still is on its default 192.168.1.1 with DHCP on subnet 1
all other router are on different subnet due I cannot use same network number,
client router are running DD-WRT, so I logged in and seen DHCP Daemon was fine.
DD-WRT router was used to solve temporarily, client was connected to 4G Gateway WIFI router, address set by DHCP run fine as for other devices like an andtroid tablet,
other devices got address from cable thru DD-WRT DHCP,
MINT PC was troubled on both networked way.
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abbasali

Re: DHCP Client failure [SOLVED]

Post by abbasali »

hi,

I am having same issue:
Wifi works without any problemd. However wired network is not able to get IP from dhcp. Would appreciate if you can guide me which packages you updated that resolved the issue.

$ uname -a
Linux thehost 4.15.0-39-generic #42~16.04.1-Ubuntu SMP Wed Oct 24 17:09:54 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
$ inxi -nxF
System: Host: thehost Kernel: 4.15.0-39-generic x86_64 (64 bit gcc: 5.4.0)
Desktop: Cinnamon 3.6.7 (Gtk 3.18.9) Distro: Linux Mint 18.3 Sylvia
Machine: System: HP (portable) product: HP ProBook 450 G4
Mobo: HP model: 8231 v: KBC Version 42.1E Bios: HP v: P85 Ver. 01.02 date: 08/30/2016
CPU: Dual core Intel Core i7-7500U (-HT-MCP-) cache: 4096 KB
flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 11616
clock speeds: max: 3500 MHz 1: 500 MHz 2: 500 MHz 3: 500 MHz 4: 500 MHz
Graphics: Card-1: Intel Device 5916 bus-ID: 00:02.0
Card-2: NVIDIA Device 134e bus-ID: 01:00.0
Display Server: X.Org 1.18.4 driver: nvidia Resolution: 1366x768@60.00hz
GLX Renderer: GeForce 930MX/PCIe/SSE2
GLX Version: 4.5.0 NVIDIA 384.130 Direct Rendering: Yes
Audio: Card Intel Device 9d71 driver: snd_hda_intel bus-ID: 00:1f.3
Sound: Advanced Linux Sound Architecture v: k4.15.0-39-generic
Network: Card-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
driver: r8169 v: 2.3LK-NAPI port: 3000 bus-ID: 02:00.0
IF: enp2s0 state: up speed: 100 Mbps duplex: full mac: c8:d3:ff:dd:14:4b
Card-2: Intel Wireless 7265 driver: iwlwifi bus-ID: 03:00.0
IF: wlp3s0 state: up mac: d0:57:7b:c0:d0:c3
Drives: HDD Total Size: 2000.4GB (77.6% used) ID-1: /dev/sda model: ST2000LM015 size: 2000.4GB
Partition: ID-1: / size: 1.8T used: 1.4T (83%) fs: ext4 dev: /dev/sda2
ID-2: swap-1 size: 17.07GB used: 0.42GB (2%) fs: swap dev: /dev/sda3
RAID: No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors: System Temperatures: cpu: 40.0C mobo: 39.5C gpu: 0.0:41C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 252 Uptime: 3 days Memory: 6994.3/15463.2MB
Init: systemd runlevel: 5 Gcc sys: 5.4.0 Client: Shell (bash 4.3.481) inxi: 2.2.35
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