Raspberrypi: RPi Connected to Router via Ethernet but not to the Internet

RPi Connected to Router via Ethernet but not to the Internet
Hey guys! Hopefully you found a solution that helped you!
The Content is licensed under (https://meta.stackexchange.com/help/l...) CC BY-SA.
Attention! This video does always use the same license as the source!
Thanks to all the great people for their contributions!

(raspberrypi.stackexchange.com/users/162729/noir)Noir
(raspberrypi.stackexchange.com/users/8697/milliways)Milliways
A special thanks goes out to the awesome (raspberrypi.stackexchange.com/questions/147882/rpi-connected-to-router-via-ethernet-but-not-to-the-internet)Stackexchange community

If anything is off, please write me at sophia DO.T wagner A.T ois42.de
I wish you all a chilled day! Stay safe :)

debian ethernet networking internet rpi