I had some trouble with my internet lately (shut off due to non-payment... supposed to automatically come out of the bank account but it didn't for whatever reason). I paid them with my debit card over the phone, and they came out to turn it back on the same day. Some guy came, messed with the box outside, and then left. The modem went from having a blinking receive light to a solid receive light and a blinking send light. The internet still didn't work, but I figured maybe it needed some time to sort itself out. After an hour it didn't so I called again, and they set up an appointment for some guy to come out and fix it this morning. He came in, looked at my setup and said "it's cause you're running it through here" (I had a coaxial coming from the wall into my surge protector, then another coming from the surge protector to the modem). I proceeded to tell him I've never had any issues with it before, and he said it can screw with the signal. He set it up with a wire coming from the wall directly to the modem, and as expected it still didn't work. He said "I'm gonna check something outside", and came back in shortly after. He said it started working before he even did anything out there. It seems to me that he was trying to cover up his spotty work (especially if he was the same guy who was here in the first place to turn it back on yesterday), but now I'm left wondering: can running coaxial through a surge protector really cause problems?