A couple of days ago I had TWC at my home for 2 hours fixing an internet problem. Short story, he honestly did a good job and got my internet cleaned up nicely by replacing faulty coax ends and one 2 way splitter that appeared to be losing tons of signal. Before he left there was a little pixelation on one of my channels that I usually watch and the signal level for that channel was 66%, not good. He took another look in the attic and decided the best thing to do was to install an 8 way splitter/amp. So he did and all of my signals are now very high 90's and SNR on any given channel is low 40's. Everything on the Roamio plays well, no problems whatsoever, however I'm now seeing my mini's being problematic with C133 or V87 (disconnect) errors. I'm also seeing in the network status on the Roamio where there are Moca bandwidth too low errors. Here's what I know. Before the splitter/amp was put in, the signals to my minis never failed, they were solid. Each mini and the Roamio have their own IP assigned. I'm using Moca (obviously). Ethernet connection to my Roamio (wired). He placed a POE filter on the coax input to the amp and he placed another POE filter on the output to the modem but I wouldn't see how that would be related to my issue. The Roamio and 2 mini's I have are connected to the other part of the splitter. The only thing I've noticed that's different is that the SNR is now generally very low 40's, occasional 39 here and there. I'd appreciate some diagnostic advice. I don't understand what I'm looking at when I look at the TX and RX levels on the mini or the Roamio but sometimes I'm seeing a 'reset modem' in the errors. I guess I don't know what levels I need to look for on the mini's vs Roamio to know what's going on.