
I've got Telekom Glasfaser and a Fritzbox 5590.
Since last June, up until 17:30 today it worked flawlessly - 600 Mbp/s download and 300 Mbp/s upload. The line actually shows available capacity at 2.5 Gbp/s down and 1.5 Gbp/s up.
I was uploading a chunky 6GB work file and the server estimated it would take about 5 minutes... all good!
Suddenly, the estimate shot up to 125 hours (

A quick speed test showed my connection was now only 0.01 Mbp/s, although the Fritzbox was still showing a connection of over 600 Mbp/s.
I did the usual steps - restarted the router and all the hubs. Restarted my Mac and another PC - no change.
Got on the phone with Telekom and they could measure the speed coming into the Fritbox at nearly 670 Mbp/s.
Telekom guy recommended a full works reset of the Fritzbox which I've now done - no change.
I've ordered a replacement Fritzbox in case it's kaputt but in the meantime do any of the forum tech geniuses have any other ideas?
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