How can I join LFG on Xbox series X

Hello, my name is Fernando, an independent consultant. Hope you are doing great. I will be more than happy to help you with your query today.

I would like you to take the following steps to clear the Mac address and then perform a quick power cycle on your console:
Settings > Network Settings > Advanced Settings > Alternate Mac Address > Clear it and the console should restart. It would definitely help if you could reset the internet router while the console is restarting.
After going through the aforementioned troubleshooting steps, I invite you to perform a quick power cycle by turning off the console and unplugging all cables. After 2-3 minutes, reconnect them again and restart the console.
Another thing you should check is your NAT type. I would like you to check your NAT type if open because sometimes it can interfere. To check the NAT type, you can follow the steps below:

Settings > Network Settings > NAT Type => Must be open.

If the NAT type is not open, you will need to open some ports with your ISP. These ports must be open for Xbox Live to work: Port 88 (UDP) Port 3074 (UDP and TCP) Port 53 (UDP and TCP) Port 80 (TCP) Port 500 (UDP) Port 3544 (UDP) Port 4500 (UDP) .

In case the issue persists after performing the previous steps, here is the official link to all the network troubleshooting steps that can help resolve this for you.

https://support.xbox.com/en-US/help/hardware-network/connect-network/xbox-one-network-connection. If the problem still persists, the next step would be to reset the console. To do this, you will need to follow the steps below to perform an Xbox reset:

Settings > System > Console Information > Reset this Xbox > Reset and keep my games and apps.

Note =>The "Reset and keep my games and apps" option will not cause you to lose your games, but remember that you need to be fully aware of your account email address and password before accessing it , because it will require you to log into the account. (Note) The link being shared is in Portuguese and may require translation software to read the page content. Hope I helped, see you soon!

yes you can join parties.

I wouldnt call the xbox one old gen as the series x is just an upgrade.

Yes,

Anyone one can be on any of the...

Xbox One,

Xbox One S,

Xbox One X,

Xbox Series S,

Xbox Series X,

and join party's and play the same game together, no matter who is playing on any of these consoles.

Hi there LoganGorniack

I suggest joining clubs to make some friends . There is plenty of clubs out there as well as there is a xbox ambassador club that is where people can come make friends chat and play games via the lfg feature. Mine craft is a very popular game so if you
join some of the clubs and have conversations and join some of the LFGs I'm sure you can make some friends .

On Xbox you can join clubs for games you like or with interests similar to yours. You can also use the LFG function on the Xbox to find other gamers to play with...also some games have ingame LFG systems you can use to find others.

https://support.xbox.com/xbox-one/xbox-live/join-club

https://support.xbox.com/xbox-one/xbox-live/using-looking-for-group