Translation of quicksand in German

Please let me summarize: The main problem of the project was the inability of the program to print the screen. The reason is that massive download may stall the connection at even 3Giga, which will result in congestion.
Last week for example, I could have told you in advance that there is no chance for the other trials (if I knew): The traffic on the major website was too big. We should test it again sometime.
Luckily the town was small and the hotel manager could call all taxi stations. They checked it through their radios and an hour later the driver was back with our bags. He did not want to be paid extra, but I insisted.