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Can't log in the NA server [ERROR 200 7:4:181:597]
I am having the same problems as I already set the entire ESO folder as an exception and all of modem ports that was mentioned are already open. I was able to log in just fine this morning and there were no updates for all of programs today.
If the connection troubleshooting posted above is not helping with Error 200, the next thing you can do is open a ticket with customer support for further assistance.