I have the same problem with my xbox serie x. If i have the xbox direct connect to the r3 it´s take up to 30 sec to get internet. But if i have the xbox connect to a switch first before the r3 it´s connect direct to internet.
I have used .23 for two days now and have smartboost on, geo-filtering on, ping steady ping on and i didn´t need to restart.
Just say it for information.
I use 192.168.1.1 . All device have normal ip, only wifi how sometimes go down when i cant connect to router. Iam connected with my phone on wifi but no internet.
All lights are up like normal.
Reboot always fix the problem
I have rgb on, geo filter on, steady ping on. Ipv6 off. I tried with smartboost off but i didnt help.
I didnt have the issue on .23 so i hope it will be stable now. Will know when i home again.
I have disable smartboost and ip6 but same issue. So now i have downgrade to .23. So hope that will work. Do you know when a new and more stable firmware coming?