>> I'm very careful about securing the wireless connection and looking for malware so I don't think it's that.
From your earlier posts I didnt think it would be, but I had to state the obvious just for the sake of elimination
Thanks for the pic... although the wiring is old.. in your particular case I dont think its actually causing any problems for you. Your sync is fine. The only thing Im not sure about is
undefined (Near):252 (Far):6787At a guess these are RS uncorrected errors (CRCs INTERL), if so you could be picking up a small amount of interference but these could come from anywhere and could be a noise burst when someone turns something on (EMI).
Your router also isnt providing your output power levels... but Im guessing here that since your attenuation is so low, that there will be some sort of power cut back occurring (there was on my own line)... even so that means nothing much since if you were ever to go full adsl2+ full power mode would kick in anyhow.
If you are being power cut back, then this will result in your SNRM not showing the true figure or capability.. and its one of the reasons why I dont ask for SNRM figures in my max speed calculator as this could skew the result.