Thanks for the info!
That is happening a lot lately. At least three times per week. And as far as I know there are only problems with zwift services. How is possible that ISP problems are only causing troubles for zwift and not other games/services?
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Hello moi aussi suis en Belgique et rien ne fonctionne…
C’est possible de supprimer une mise à jour Windows qui est à l’origine de ce bug ?
Au fait les abréviations FAI tu sais m’éclairer ?
Merci.
Hello I am also in Belgium and nothing works…
Is it possible to delete a Windows update that is causing this bug?
By the way the abbreviations FAI can you enlighten me?
No, it’s a internet connection issue.
Non, ce n’est pas dû aux mises à jour de Windows, car avec le VPN, tout fonctionne bien. VPN = Virtual Private Networking, ce qui fait que votre PC pense qu’il est en fait ailleurs. J’ai téléchargé un programme pour le faire.
Do you see the abbreviation V.P.N. as FAI in French language? Virtual Private Network.
Same here in Switzerland
I don’t speak french. This was a google translate.
Companion not working neither Zwift. tried from different devices… nothing works!
Same here, the companion app on my iPhone does not login, the Zwift app on the iPad also does not work and my feed on the Zwift webpage on the laptop also does not work.
Tried the Companion app via mobile data but that does not make a difference.
I am located in the Netherlands and have KPN for internet and mobile data.
Same here in Vienna 
I need someone to do a test for me.
Go to this website: Open Port Check Tool - Test Port Forwarding on Your Router
Enter this IP address: 54.191.164.86
Enter this port: 3023
And let me know the result.
It should reply with: 
Port 3023 is open on 54.191.164.86.
Port 3023 is open on 54.191.164.86.
done from Switzerland, if this is important
Just trying to create a self testing tool for when this happens.
Don’t know if it is useful but from Italy it is open
Port 3023 is open on 54.191.164.86.
From Germany, ISP EWE Tel, VDSL 50/10
Aktuelle IP verwendenOk, looks like I’m going to have to play with Wireshark to get all the IP Address and Ports that Zwift uses.