i can’t play online games or anything online

Vandalik Said:

"Who can help me?: i can’t play online games or anything online"

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Reset your Router - Unplug it for 30 seconds, and then plug it back in. There may be too much data transfer occurring for your ISP (Internet Service Provider) to manage at the moment.

Be certain Cellular Data is disabled, as it overrules WiFi. Gaming may only operate on WiFi.

I would also verify that you are connected to the same network that you always play games on.

Well, you are talking to us online, so there appears to be some missing info. Can you be more detailed?