Virezma wrote in “Once our Internet didn’t work for days after we had switched to faster service, 15 Mbps I think. The guy arrived and it turned out that where we live the maximum capacity is 10, so they had to change us back to 5 Mbps.” on Sometimes You Feel Like a Nut
Thankfully, I know the highest speed is available here. I have had it for over a year now. It just gets temperamental at times.