[KDE] network-manager buggy and slow

[efgh58]

Hey guys, I just installed Kubuntu on my main computer, and now I had the problem that the default network manager behaves unexpectedly.

At first, I connected to my Network ("NetworkName"), then for an eternity, nothing happened. Suddenly, there were "clones" of my network, named NetworkName 1; 2; 3 etc.
Then I managed to connect to my real network, but downloads in Steam used only 1/10 of the speed, everything concerning internet was generally very slow and it even disconnected me from my network a few times and took forever to reconnect.

I have since removed network-manager and installed WICD, which works great and gives me full speed and stability, but I'm curious as to why the default network manager behaves so badly. Does anyone here have an idea how to fix this, I quite liked the tray menu it provided

[GreyGeek]

What is your make and model for your PC.. NetworkManager works great with my Acer V3-771G.

[jglen490]

The info GreyGeek, and others, may need can be found by opening konsole and entering

inxi -Fxz

. If you don't have "inxi", it can be installed by entering

sudo apt install inxi

in a konsole session.

[GreyGeek]

Ya, I'm familiar with it and suggest its use on occasions. Dittos with https://github.com/UbuntuForums/wireless-info

[jglen490]

Yep. Probably another drive-by poster, it happens.

[efgh58]

The info GreyGeek, and others, may need can be found by opening konsole and entering

inxi -Fxz

. If you don't have "inxi", it can be installed by entering

sudo apt install inxi

in a konsole session.

[FONT=monospace][COLOR=#5454FF][B]System:   [/B][/COLOR][COLOR=#5454FF][B]Host:[/B][/COLOR][COLOR=#B2B2B2] xxxxxxx [/COLOR][COLOR=#5454FF][B]Kernel:[/B][/COLOR][COLOR=#B2B2B2] 4.15.0-29-generic x86_64 [/COLOR][COLOR=#5454FF][B]bits:[/B][/COLOR][COLOR=#B2B2B2] 64 [/COLOR][COLOR=#5454FF][B]gcc:[/B][/COLOR][COLOR=#B2B2B2] 7.3.0[/COLOR] 
[COLOR=#5454FF][B]Desktop:[/B][/COLOR][COLOR=#B2B2B2] KDE Plasma 5.12.6 (Qt 5.9.5) [/COLOR][COLOR=#5454FF][B]Distro:[/B][/COLOR][COLOR=#B2B2B2] Ubuntu 18.04.1 LTS                                                                                                                                                                                                    [/COLOR] 
[COLOR=#5454FF][B]Machine:  [/B][/COLOR][COLOR=#5454FF][B]Device:[/B][/COLOR][COLOR=#B2B2B2] desktop [/COLOR][COLOR=#5454FF][B]System:[/B][/COLOR][COLOR=#B2B2B2] Gigabyte [/COLOR][COLOR=#5454FF][B]product:[/B][/COLOR][COLOR=#B2B2B2] H97-D3H [/COLOR][COLOR=#5454FF][B]serial:[/B][/COLOR][COLOR=#B2B2B2] N/A                                                                                                                                                                                                       [/COLOR] 
[COLOR=#5454FF][B]Mobo:[/B][/COLOR][COLOR=#B2B2B2] Gigabyte [/COLOR][COLOR=#5454FF][B]model:[/B][/COLOR][COLOR=#B2B2B2] H97-D3H-CF [/COLOR][COLOR=#5454FF][B]v:[/B][/COLOR][COLOR=#B2B2B2] x.x [/COLOR][COLOR=#5454FF][B]serial:[/B][/COLOR][COLOR=#B2B2B2] N/A [/COLOR][COLOR=#5454FF][B]UEFI:[/B][/COLOR][COLOR=#B2B2B2] American Megatrends [/COLOR][COLOR=#5454FF][B]v:[/B][/COLOR][COLOR=#B2B2B2] F5 [/COLOR][COLOR=#5454FF][B]date:[/B][/COLOR][COLOR=#B2B2B2] 06/26/2014                                                                                                                                                                [/COLOR] 
[COLOR=#5454FF][B]CPU:      [/B][/COLOR][COLOR=#5454FF][B]Quad core[/B][/COLOR][COLOR=#B2B2B2] Intel Xeon E3-1231 v3 (-MT-MCP-) [/COLOR][COLOR=#5454FF][B]arch:[/B][/COLOR][COLOR=#B2B2B2] Haswell rev.3 [/COLOR][COLOR=#5454FF][B]cache:[/B][/COLOR][COLOR=#B2B2B2] 8192 KB                                                                                                                                                                                       [/COLOR] 
[COLOR=#5454FF][B]flags:[/B][/COLOR][COLOR=#B2B2B2] (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) [/COLOR][COLOR=#5454FF][B]bmips:[/B][/COLOR][COLOR=#B2B2B2] 27200                                                                                                                                                                                                   [/COLOR] 
[COLOR=#5454FF][B]clock speeds:[/B][/COLOR][COLOR=#5454FF][B]max:[/B][/COLOR][COLOR=#B2B2B2] 3800 MHz [/COLOR][COLOR=#5454FF][B]1:[/B][/COLOR][COLOR=#B2B2B2] 3649 MHz [/COLOR][COLOR=#5454FF][B]2:[/B][/COLOR][COLOR=#B2B2B2] 3681 MHz [/COLOR][COLOR=#5454FF][B]3:[/B][/COLOR][COLOR=#B2B2B2] 3643 MHz [/COLOR][COLOR=#5454FF][B]4:[/B][/COLOR][COLOR=#B2B2B2] 3665 MHz [/COLOR][COLOR=#5454FF][B]5:[/B][/COLOR][COLOR=#B2B2B2] 3679 MHz [/COLOR][COLOR=#5454FF][B]6:[/B][/COLOR][COLOR=#B2B2B2] 3688 MHz                                                                                                                                                                 [/COLOR] 
[COLOR=#5454FF][B]7:[/B][/COLOR][COLOR=#B2B2B2] 3656 MHz [/COLOR][COLOR=#5454FF][B]8:[/B][/COLOR][COLOR=#B2B2B2] 3662 MHz                                                                                                                                                                                                                                             [/COLOR] 
[COLOR=#5454FF][B]Graphics: [/B][/COLOR][COLOR=#5454FF][B]Card:[/B][/COLOR][COLOR=#B2B2B2] Advanced Micro Devices [AMD/ATI] Hawaii PRO [Radeon R9 290/390] [/COLOR][COLOR=#5454FF][B]bus-ID:[/B][/COLOR][COLOR=#B2B2B2] 01:00.0                                                                                                                                                                               [/COLOR] 
[COLOR=#5454FF][B]Display Server:[/B][/COLOR][COLOR=#B2B2B2] x11 (X.Org 1.19.6 ) [/COLOR][COLOR=#5454FF][B]drivers:[/B][/COLOR][COLOR=#B2B2B2] ati,radeon (unloaded: modesetting,fbdev,vesa)                                                                                                                                                                          [/COLOR] 
[COLOR=#5454FF][B]Resolution:[/B][/COLOR][COLOR=#B2B2B2] 1920x1080@144.00hz                                                                                                                                                                                                                                      [/COLOR] 
[COLOR=#5454FF][B]OpenGL: renderer:[/B][/COLOR][COLOR=#B2B2B2] AMD HAWAII (DRM 2.50.0 / 4.15.0-29-generic, LLVM 6.0.0)                                                                                                                                                                                           [/COLOR] 
[COLOR=#5454FF][B]version:[/B][/COLOR][COLOR=#B2B2B2] 4.5 Mesa 18.0.5 [/COLOR][COLOR=#5454FF][B]Direct Render:[/B][/COLOR][COLOR=#B2B2B2] Yes                                                                                                                                                                                                                         [/COLOR] 
[COLOR=#5454FF][B]Audio:    [/B][/COLOR][COLOR=#5454FF][B]Card-1[/B][/COLOR][COLOR=#B2B2B2] Advanced Micro Devices [AMD/ATI] Hawaii HDMI Audio [Radeon R9 290/290X / 390/390X]                                                                                                                                                                           [/COLOR] 
[COLOR=#5454FF][B]driver:[/B][/COLOR][COLOR=#B2B2B2] snd_hda_intel [/COLOR][COLOR=#5454FF][B]bus-ID:[/B][/COLOR][COLOR=#B2B2B2] 01:00.1                                                                                                                                                                                                                               [/COLOR] 
[COLOR=#5454FF][B]Card-2[/B][/COLOR][COLOR=#B2B2B2] Intel 9 Series Family HD Audio Controller [/COLOR][COLOR=#5454FF][B]driver:[/B][/COLOR][COLOR=#B2B2B2] snd_hda_intel [/COLOR][COLOR=#5454FF][B]bus-ID:[/B][/COLOR][COLOR=#B2B2B2] 00:1b.0                                                                                                                                                                              [/COLOR] 
[COLOR=#5454FF][B]Card-3[/B][/COLOR][COLOR=#B2B2B2] Kingston [/COLOR][COLOR=#5454FF][B]driver:[/B][/COLOR][COLOR=#B2B2B2] USB Audio [/COLOR][COLOR=#5454FF][B]usb-ID:[/B][/COLOR][COLOR=#B2B2B2] 003-005                                                                                                                                                                                                                   [/COLOR] 
[COLOR=#5454FF][B]Sound:[/B][/COLOR][COLOR=#B2B2B2] Advanced Linux Sound Architecture [/COLOR][COLOR=#5454FF][B]v:[/B][/COLOR][COLOR=#B2B2B2] k4.15.0-29-generic                                                                                                                                                                                                      [/COLOR] 
[COLOR=#5454FF][B]Network:  [/B][/COLOR][COLOR=#5454FF][B]Card-1:[/B][/COLOR][COLOR=#B2B2B2] Intel Ethernet Connection I217-V [/COLOR][COLOR=#5454FF][B]driver:[/B][/COLOR][COLOR=#B2B2B2] e1000e [/COLOR][COLOR=#5454FF][B]v:[/B][/COLOR][COLOR=#B2B2B2] 3.2.6-k [/COLOR][COLOR=#5454FF][B]port:[/B][/COLOR][COLOR=#B2B2B2] f040 [/COLOR][COLOR=#5454FF][B]bus-ID:[/B][/COLOR][COLOR=#B2B2B2] 00:19.0                                                                                                                                                                       [/COLOR] 
[COLOR=#5454FF][B]IF:[/B][/COLOR][COLOR=#B2B2B2] eno1 [/COLOR][COLOR=#5454FF][B]state:[/B][/COLOR][COLOR=#B2B2B2] up [/COLOR][COLOR=#5454FF][B]speed:[/B][/COLOR][COLOR=#B2B2B2] 100 Mbps [/COLOR][COLOR=#5454FF][B]duplex:[/B][/COLOR][COLOR=#B2B2B2] full [/COLOR][COLOR=#5454FF][B]mac:[/B][/COLOR][COLOR=#B2B2B2] <filter>                                                                                                                                                                                                       [/COLOR] 
[COLOR=#5454FF][B]Card-2:[/B][/COLOR][COLOR=#B2B2B2] Realtek RTL8192CU 802.11n WLAN Adapter [/COLOR][COLOR=#5454FF][B]driver:[/B][/COLOR][COLOR=#B2B2B2] rtl8192cu [/COLOR][COLOR=#5454FF][B]usb-ID:[/B][/COLOR][COLOR=#B2B2B2] 003-009                                                                                                                                                                                    [/COLOR] 
[COLOR=#5454FF][B]IF:[/B][/COLOR][COLOR=#B2B2B2] wlx30b5c21ee991 [/COLOR][COLOR=#5454FF][B]state:[/B][/COLOR][COLOR=#B2B2B2] N/A [/COLOR][COLOR=#5454FF][B]mac:[/B][/COLOR][COLOR=#B2B2B2] N/A                                                                                                                                                                                                                             [/COLOR] 
[COLOR=#5454FF][B]Drives:   [/B][/COLOR][COLOR=#5454FF][B]HDD Total Size:[/B][/COLOR][COLOR=#B2B2B2] 2750.6GB (2.2% used)                                                                                                                                                                                                                                [/COLOR] 
[COLOR=#5454FF][B]ID-1:[/B][/COLOR][COLOR=#B2B2B2] /dev/sda [/COLOR][COLOR=#5454FF][B]model:[/B][/COLOR][COLOR=#B2B2B2] Samsung_SSD_850 [/COLOR][COLOR=#5454FF][B]size:[/B][/COLOR][COLOR=#B2B2B2] 250.1GB [/COLOR][COLOR=#5454FF][B]temp:[/B][/COLOR][COLOR=#B2B2B2] 0C                                                                                                                                                                                                        [/COLOR] 
[COLOR=#5454FF][B]ID-2:[/B][/COLOR][COLOR=#B2B2B2] /dev/sdb [/COLOR][COLOR=#5454FF][B]model:[/B][/COLOR][COLOR=#B2B2B2] CT500MX500SSD1 [/COLOR][COLOR=#5454FF][B]size:[/B][/COLOR][COLOR=#B2B2B2] 500.1GB [/COLOR][COLOR=#5454FF][B]temp:[/B][/COLOR][COLOR=#B2B2B2] 40C                                                                                                                                                                                                        [/COLOR] 
[COLOR=#5454FF][B]ID-3:[/B][/COLOR][COLOR=#B2B2B2] /dev/sdc [/COLOR][COLOR=#5454FF][B]model:[/B][/COLOR][COLOR=#B2B2B2] ST1000DM003 [/COLOR][COLOR=#5454FF][B]size:[/B][/COLOR][COLOR=#B2B2B2] 1000.2GB [/COLOR][COLOR=#5454FF][B]temp:[/B][/COLOR][COLOR=#B2B2B2] 37C                                                                                                                                                                                                          [/COLOR] 
[COLOR=#5454FF][B]ID-4:[/B][/COLOR][COLOR=#B2B2B2] /dev/sdd [/COLOR][COLOR=#5454FF][B]model:[/B][/COLOR][COLOR=#B2B2B2] WDC_WD10EZEX [/COLOR][COLOR=#5454FF][B]size:[/B][/COLOR][COLOR=#B2B2B2] 1000.2GB [/COLOR][COLOR=#5454FF][B]temp:[/B][/COLOR][COLOR=#B2B2B2] 36C                                                                                                                                                                                                         [/COLOR] 
[COLOR=#5454FF][B]Partition:[/B][/COLOR][COLOR=#5454FF][B]ID-1:[/B][/COLOR][COLOR=#B2B2B2] / [/COLOR][COLOR=#5454FF][B]size:[/B][/COLOR][COLOR=#B2B2B2] 46G [/COLOR][COLOR=#5454FF][B]used:[/B][/COLOR][COLOR=#B2B2B2] 6.5G (16%) [/COLOR][COLOR=#5454FF][B]fs:[/B][/COLOR][COLOR=#B2B2B2] ext4 [/COLOR][COLOR=#5454FF][B]dev:[/B][/COLOR][COLOR=#B2B2B2] /dev/sda6                                                                                                                                                                                                          [/COLOR] 
[COLOR=#5454FF][B]ID-2:[/B][/COLOR][COLOR=#B2B2B2] /home [/COLOR][COLOR=#5454FF][B]size:[/B][/COLOR][COLOR=#B2B2B2] 63G [/COLOR][COLOR=#5454FF][B]used:[/B][/COLOR][COLOR=#B2B2B2] 23G (39%) [/COLOR][COLOR=#5454FF][B]fs:[/B][/COLOR][COLOR=#B2B2B2] ext4 [/COLOR][COLOR=#5454FF][B]dev:[/B][/COLOR][COLOR=#B2B2B2] /dev/sda7                                                                                                                                                                                                       [/COLOR] 
[COLOR=#5454FF][B]ID-3:[/B][/COLOR][COLOR=#B2B2B2] swap-1 [/COLOR][COLOR=#5454FF][B]size:[/B][/COLOR][COLOR=#B2B2B2] 24.00GB [/COLOR][COLOR=#5454FF][B]used:[/B][/COLOR][COLOR=#B2B2B2] 0.00GB (0%) [/COLOR][COLOR=#5454FF][B]fs:[/B][/COLOR][COLOR=#B2B2B2] swap [/COLOR][COLOR=#5454FF][B]dev:[/B][/COLOR][COLOR=#B2B2B2] /dev/sda5                                                                                                                                                                                                [/COLOR] 
[COLOR=#5454FF][B]RAID:     [/B][/COLOR][COLOR=#B2B2B2] No RAID devices: /proc/mdstat, md_mod kernel module present                                                                                                                                                                                                         [/COLOR] 
[COLOR=#5454FF][B]Sensors:  [/B][/COLOR][COLOR=#5454FF][B]System Temperatures: cpu:[/B][/COLOR][COLOR=#B2B2B2] 29.8C [/COLOR][COLOR=#5454FF][B]mobo:[/B][/COLOR][COLOR=#B2B2B2] 27.8C [/COLOR][COLOR=#5454FF][B]gpu:[/B][/COLOR][COLOR=#B2B2B2] 51.0                                                                                                                                                                                                               [/COLOR] 
[COLOR=#5454FF][B]Fan Speeds (in rpm): cpu:[/B][/COLOR][COLOR=#B2B2B2] N/A                                                                                                                                                                                                                                       [/COLOR] 
[COLOR=#5454FF][B]Info:     [/B][/COLOR][COLOR=#5454FF][B]Processes:[/B][/COLOR][COLOR=#B2B2B2] 283 [/COLOR][COLOR=#5454FF][B]Uptime:[/B][/COLOR][COLOR=#B2B2B2] 1:18 [/COLOR][COLOR=#5454FF][B]Memory:[/B][/COLOR][COLOR=#B2B2B2] 2398.4/15951.4MB [/COLOR][COLOR=#5454FF][B]Init:[/B][/COLOR][COLOR=#B2B2B2] systemd [/COLOR][COLOR=#5454FF][B]runlevel:[/B][/COLOR][COLOR=#B2B2B2] 5 [/COLOR][COLOR=#5454FF][B]Gcc sys:[/B][/COLOR][COLOR=#B2B2B2] N/A                                                                                                                                                                         [/COLOR] 
[COLOR=#5454FF][B]Client:[/B][/COLOR][COLOR=#B2B2B2] Shell (bash 4.4.191) [/COLOR][COLOR=#5454FF][B]inxi:[/B][/COLOR][COLOR=#B2B2B2] 2.3.56                                                        [/COLOR]
[/FONT]

This is what comes up. My PC is custom built but has worked flawlessly with Windows for almost 5 years now.

I've since reinstalled my Kubuntu, and the issue somewhat persisted when I first started up, but I switched to LAN now, and after some hiccupsin the beginning it seems to work as expected now. Though there's no telling how it will react after the next reboot. Oh, and I also installed dnsmasq for good measures