Score:0

Wi-Fi latency spikes on Ubuntu 22.04

ke flag

I've seen that other people have had the same issue that I have (in other versions) but the answers that they've gotten haven't worked for me. I have a dual boot with windows 10 and Ubuntu 22.04, when I'm using windows all seems to be good and the connection works fine and in others devices it works too. The problem is on Ubuntu, because I have high spikes on my latency, as we can see in this image. However when I ping my default gateway the response is less than 1ms, so the problem is not with the LAN. The spikes occur between 5 and 20 seconds, for example the pings are usually from 9ms to 12ms and suddenly it jumps to 300ms.

This is my ifconfig and my iwconfig the network adapter, that is RTL8192EE PCIe Wireless Network Adapter. The adapter only works on the 2.4 Hz bandwidth. I tried putting the Power Management:off with sudo iwconfig wlp6s0 power off, i also tried apt install --reinstall linux-firmware because I read that worked for other people, adding others DNS directions

ifconfig

wlp6s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.100.36  netmask 255.255.255.0  broadcast 192.168.100.255
        inet6 fe80::17db:aa74:6c94:a198  prefixlen 64  scopeid 0x20<link>
        inet6 2803:9800:98ca:81a5:45ab:5423:7e6d:bfb5  prefixlen 64  scopeid 0x0<global>
        inet6 2803:9800:98ca:81a5:9098:c599:e3a9:37ff  prefixlen 64  scopeid 0x0<global>
        ether 7c:c2:c6:13:0b:92  txqueuelen 1000  (Ethernet)
        RX packets 1925169  bytes 1464213350 (1.4 GB)
        RX errors 0  dropped 3914  overruns 0  frame 0
        TX packets 2030033  bytes 2279512117 (2.2 GB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

iwconfig

wlp6s0    IEEE 802.11  ESSID:"Beramucci Claro"  
          Mode:Managed  Frequency:2.447 GHz  Access Point: 98:44:CE:57:40:BC   
          Bit Rate=144.4 Mb/s   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr=2347 B   Fragment thr:off
          Power Management:on
          Link Quality=69/70  Signal level=-41 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:187   Missed beacon:0

uname -a

Linux frank-Desktop 5.15.0-53-generic #59-Ubuntu SMP Mon Oct 17 18:53:30 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

lshw

*-network
                      description: Wireless interface
                      product: RTL8192EE PCIe Wireless Network Adapter
                      vendor: Realtek Semiconductor Co., Ltd.
                      physical id: 0
                      bus info: pci@0000:06:00.0
                      logical name: wlp6s0
                      version: 00
                      serial: 7c:c2:c6:13:0b:92
                      width: 64 bits
                      clock: 33MHz
                      capabilities: bus_master cap_list ethernet physical wireless
                      configuration: broadcast=yes driver=rtl8192ee driverversion=5.15.0-53-generic firmware=N/A ip=192.168.100.36 latency=0 link=yes multicast=yes wireless=IEEE 802.11
                      resources: irq:63 ioport:e000(size=256) memory:fcd00000-fcd03fff
              *-pci:4

iwlist scan

wlp6s0    Scan completed :
          Cell 01 - Address: 98:44:CE:57:40:BC
                    Channel:8
                    Frequency:2.447 GHz (Channel 8)
                    Quality=70/70  Signal level=-32 dBm  
                    Encryption key:on
                    ESSID:"Beramucci Claro"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master

This is not a router or interference issue because all the other devices works properly. I tried more things but they were some many that I don't remember. I more information is necessary I'll upload without any problem. This is the last thing that I'll try to do because I didn't find the solution in any other place. Thank in advance to all.

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