I know exactly where you are coming from with this issue. I’m with the same ISP so have same router or similar - Netgear. Transfer rates on my Mac with ML are 10mbps max using Ethernet. So slow when compared to USB2, a real joke - bad one.
i began my time machine backup again on thursday. Its a 2.6TB backup. its still going. except it feels like its just stuck . Is there anyone who can help with this as its rendering the MyBook useless and leaving me without a backup.
I am used to manually backing up big audio drives using firewire and never had a situation so complicated