I can't access online play for any games

Hi there TonkaTruck70.

I am Lumie and I would love to assist you today.

I am so sorry you are having issues with running your online games.

Test Your Network Connection

Run a network test on your Xbox console to check for any issues with your connection:

On Xbox One/Series X|S:

Press the Xbox button to open the guide.
Go to Profile & system > Settings > General > Network settings.
Select Test network connection.
This will help identify if there are any issues with your internet connection specifically.

Restarting your router and modem can often resolve connectivity issues:

Unplug your modem and router from the power source.
Wait for about 30 seconds.
Plug in the modem first and wait until all the lights are on and stable.
Plug in the router and wait until it fully powers up.

Ensure your Xbox console is up to date:

Press the Xbox button to open the guide.
Go to Profile & system > Settings > System > Updates.
If there's an update available, follow the on-screen instructions to install it.

Your NAT type can affect your ability to play online. Check and possibly modify your NAT type settings:

Press the Xbox button to open the guide.
Go to Profile & system > Settings > General > Network settings.
Look for the NAT Type. Ideally, it should be "Open." If it's "Strict" or "Moderate," you might face issues.

To change your NAT type:

Enable UPnP (Universal Plug and Play) on your router. Refer to your router's manual or manufacturer's website for instructions.
If UPnP isn't available, you might need to set up port forwarding or a DMZ. The ports typically required for Xbox Live are:
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)

Ensure your Xbox Live Gold or Game Pass subscription is active, as online multiplayer requires an active subscription. Check this under:

Press the Xbox button to open the guide.
Go to Profile & system > Settings > Account > Subscriptions.

Sometimes clearing the MAC address can resolve network issues:

Press the Xbox button to open the guide.
Go to Profile & system > Settings > General > Network settings.
Select Advanced settings.
Select Alternate MAC address.
Select Clear, then restart your console.

If you have tried all the above steps and still face issues, it might be worth contacting your Internet Service Provider (ISP). There could be issues with your internet connection or they might need to adjust settings on their end.

I hope this helps.

Let me know if I can be of any further assistance. -Lumie

I've changed my internet completely, from a new internet provider and all.

How can I check the firewall? Through the router's control panel?

Is UPnP activated?

Also make sure the teredo protokoll is deactivated

Did you do a physical modem swap, or just to the service. When upgrading it can mess with the fire wall settings , showing an open nat type but not letting information pass and actully being able to play online.i would check the fire wall setting on the
modem and any other things that you may be connected to

I've changed my internet completely, from a new internet provider and all.

How can I check the firewall? Through the router's control panel?

You may want to try clearing the MAC address too. To do that just go to your network settings, click advanced network settings, alternate MAC address, select clear, then reset. Your console will restart at that point.