Help - Certified measurement

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• What is a certified measurement?
• How do I perform a certified measurement?
• Can I use the certified measurement for my Internet connection?
• When is the certified measurement completed?
• What is the difference between a certified measurement for wired Internet access services and a certified measurement for so-called “mobile Internet solutions for at home”?
• When is a measurement unsuccessful?
• Can I save the result of the certified measurement?
• Where can I find the type designation of my modem/router?
• When can I upload photos?
• Who can help me with problems with the certified measurement?
• What can I do if I get a bad result?