We recently installed a new home broadband router from Vodafone, and then were away on holidays for two weeks, during which time the line was activated. On returning from holidays and checking the speed on the new router, it was very low, with lots of errors being reported in the statistics, which leads me to believe the socket I had used to install the router was not great and added a lot of noise to the line. I switched the router to a different socket, and the speeds were a lot better once the handshaking had completed. Looking at the line attenuation figures it looks like the line should be capable of up to ~40 Mbps, but it is maxing out at around 6 Mbps at the moment. I think this is due to the SNR margin being set to a very high 30 dB downstream and 25 dB upstream, which was presumably to deal with the noisy socket. Is there any way to get the SNR margins reduced/reset to the defaults to allow the router to get faster speeds? Or do we just have to wait for the SNR to reduce over time?
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