[Update:Solution]
It was my router which set STP on by default. Switching it off (in smaller networks) or using RSTP made the delays go away.
[/Update]
Hóla!
For a long time I've got this horribly annoying problem:
Upon bootup, ANY domain-machine that is using LAN (no probs with wireless) has an idle-time with "there's no network!" of about 1-2mins until they discovered the network. BUT only windows-machines. Linux boxes get net instantly. Also on LAN.
Setup:
2 Domaincontrollers, Server2019. Both are DNS, one is DHCP and NPS for WIFI.
All machines have fixed IPs, the DHCP is just for wireless clients.
I have tried everything I could think of, like NIC-Drivers, OpenDHCP, temporarily changed the switch from a managed one to a dumb one, changed the NIC in the server, let only one DC be alive at a time, rejoined the domain, the usual sfc/dism-approach and whatnot.
I asked once on reddit, but everyone just told me "that's DHCP!", yet it's (seemingly at least) not. All have fixed IPs, but using dhcp doesn't change a thing.
So I'm clueless again, hoping for some nerd that's nerdier than me to have an idea :)
Thanks man, your kind words are appreciated. Yet, in the end....who cares? People are still flooding the association with donations and work-force. If i left or not didn't change anything at all. I couldn't even leave a nasty virus this time as any damage would've just been taken out of the 5%. It'd be great if everyone (or at least >50%?) would never work in such a company/assoc. But a single entity? Futile.
Also I must add, that I could've easily done it. First I didn't even need to work, i just wanted to. And second, here you're not screwed if you loose your job. So a regular US-American would've probably made another choice here. By force. The system sucks and it heavily rewards the dark trinity of psychological disorders. In fact, they're often a requirement.
But thanks man, either way. Guess how many understood why i left? exactly ,-)