Right after that, the network has limited connectivity (the issue happens on KDE Plasma testing and unstable branches, but also on Gnome unstable branch) - the installs are separate, as i never mix DE’s and yes, the home directory are not mixed either between the installs. Tested also with 5.13 - 5.12 - 5.10 and 5.4 kernels; and all gave the same result.
I can access the router interface and from there i can ping or traceroute whatever site/domain, there is connectivity and internet access, but i can’t reach internet from the desktop whatsoever, unless i first disconnect the network and restart the router then connect the network.
Just restarting services is not helping either.
Network: Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet driver: r8169 v: kernel port: d800 bus-ID: 04:00.0
IF: enp4s0 state: up speed: 100 Mbps duplex: full mac: <filter>
IP v4: <filter> type: noprefixroute scope: global
IP v6: <filter> scope: link
Device-2: Broadcom NetLink BCM5784M Gigabit Ethernet PCIe vendor: Dell driver: tg3 v: kernel port: d800
IF: enp5s0 state: up speed: 100 Mbps duplex: full mac: <filter>
WAN IP: <filter>
The thing is, regardless what LAN interface i use, same deal. Tried all the variants of static IP, link negotiation, speed, duplex … still happening. Since i kind of exhausted my “expertize” i thought maybe someone has an idea.
The issue is not present if i use Falkon and Vivaldi browsers. Can’t drop any of the browsers, nor mix their content, as for me each has a clear and predefined use.
Maybe some hardware quirks. Try using another LAN cable or connect to another port at the router.
However, that sounds like the physical connection is still ok when you get to the router from your PC.
Maybe some routing issue. What’s route saying while you have that issue? Is the output different to when it’s working?
That leaves a routing or dns problem.
If you are able to ping machines via IPs but not via hostname - it’s a dns problem.
A little while ago I had a similar peculiar issue on unstable - dns would not work properly until I restarted systemd-resolved.
It went away on its own after 2 or 3 days, though.
No mac address randomization, in fact i prefer to add mac address and IP reservation to my router and only allow access to known devices, regardless if wifi or lan, so … will see what else i can cope about this. It bothers me as it started just some time ago, never had this problem. Thanks so much for your imput so far!
It would not surprise me that, is quite oldish now. Connecting directly to my ISP via PPPoE gives a stable connection to my PC, but i would have to do some changes here to make things accessible to some visitors and all… Will procure a new router even only for a quick test and see where that leads me.