https://bugs.kde.org/show_bug.cgi?id=467995

            Bug ID: 467995
           Summary: System Monitor and network graph in system tray
                    missing network rates
    Classification: Applications
           Product: plasma-systemmonitor
           Version: 5.25.5
          Platform: Kubuntu
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: ksysguard-b...@kde.org
          Reporter: darkone1...@gmail.com
                CC: ahiems...@heimr.nl, plasma-b...@kde.org
  Target Milestone: ---

Created attachment 157737
  --> https://bugs.kde.org/attachment.cgi?id=157737&action=edit
System monitor and system tray not showing network rates.

For me the System Monitor and Plasma 5.25 is missing information about overall
network rates, information about network rates per application works fine. This
is on a fresh clean install of Kubuntu 22.10 (Kubuntu 22.04 used to show
everything OK under ksysguard).

If anyone has any idea how to fix this, it would be great. Possibly related to:
https://bugs.kde.org/show_bug.cgi?id=433258

STEPS TO REPRODUCE
1. Open system monitor on the History or Processes tab.
2. Or open networks in the system tray and expand the speed tab + graph.

OBSERVED RESULT
Download and upload rates are 0B/s

EXPECTED RESULT
Should show Download and upload rates

SOFTWARE/OS VERSIONS
Operating System: Kubuntu 22.10
KDE Plasma Version: 5.25.5
KDE Frameworks Version: 5.98.0
Qt Version: 5.15.6
Kernel Version: 5.19.0-38-generic (64-bit)
Graphics Platform: X11
Processors: 4 × Intel® Core™ i5-4670K CPU @ 3.40GHz
Memory: 31.3 GiB of RAM
Graphics Processor: llvmpipe

ADDITIONAL INFORMATION
Places where network information shows OK ✅ and where its broken ❌:
- System Monitor has no upload or download rates under the History / Processes
/ Overview tabs. 0 B/s always. Hence widgets also show 0 B/s always. ❌
- System Monitor does show my proper Wired connection 1 (this PC only has one
network adapter enp4s0) and proper IPv4 ip address. ✅
- System Monitor under Applications tab, each individual app has proper
Download and Upload rates. ✅ The details sidebar has proper network usage
graphs. ✅
- In my system tray, the Network Connections icon also shows no upload or
download under speed tab. ❌ Details tab shows correct information. ✅
- Programs such as nethogs show correct network rates. ✅

I do have PiVPN wireguard server installed on this machine, but the issues
persist even with it disabled through sudo systemctl stop wg-quick@wg0.service. 

nmcli output:
----
$ nmcli
enp4s0: connected to Wired connection 1
        "Qualcomm Atheros Killer E220x"
        ethernet (alx), 44:8A:5B:9E:D8:7E, hw, mtu 1500
        ip4 default
        inet4 10.0.0.162/24
        route4 10.0.0.168/32 metric 100
        route4 10.8.0.0/24 via 10.0.0.168 metric 100
        route4 10.0.0.0/24 metric 100
        route4 default via 10.0.0.1 metric 100
        route4 169.254.0.0/16 metric 1000
        inet6 fe80::3728:ce6e:b8d6:45e2/64
        route6 fe80::/64 metric 1024

lo: unmanaged
        "lo"
        loopback (unknown), 00:00:00:00:00:00, sw, mtu 65536

DNS configuration:
        servers: 1.1.1.1 8.8.8.8
        domains: evy.int
        interface: enp4s0
----

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