I'm having the same issue and I have also tried every suggestion. Everything was fine until March 5th patch. I hope this gets resolved.

I've done litterally every fix I've found, flushed and reset, changed pc name, deleted all brawl decks from my phone (works fine on there), changed language settings, changed DNS, nothing is working and looks like this has been happening to people for months. I'm just gonna wait till it fixes itself maybe and play the physical game a bit more I guess, I still have this on my phone but can't be assed with the tiny text, especially with new sets

Side note- This is why Web3 is such a big deal, if you can't access your account for any reason you still own every one of your cards as NFT's and can sell them or port them to another account so you can't lose years of work

People encountering this: Go change the name of your device to have only English letters in it. You can do it in the settings and restart.

also getting Error Updating Data - Please check your connection and try again - 2024.33.70.5061 patch, started 01/26

The device doesn't matter. My friend was able to log on and play just fine on his pc. I tested my login on his computer the second he logged out and it wouldn't let me in. Then he logged on to his account again and had no issues getting in! This is ridiculous.

Same. Problem occurs on my PC, ipad. Iphone. Reset the wifi/modem did not help. Playing on cellular data did not help. Created a dummy account and was able to play. (But I lose years and years of progress………)

I am still getting the "Error Updating Data" issue.

No, it's not my connection.

No it's not proxy settings.

No, it's not the firewall.

No, the VPN did not help.

Yes, I did switch to the Epic Games Launcher.

None of these have helped. I still can't play this game. My connection is 200+MB/sec downloads and yet this game chokes my install at under 10mb/sec