I couldn’t get online earlier tonight, even after Charter’s brilliant technical assistance – consisting of having me unplug and then plug back in the modem. Then I noticed there was some kind of filter-looking device between the coax cable and the modem. I took it out and screwed the coax straight into the box. Immediate re-connection, and ability to post this thread ensued.
What is it? It’s labeled Arcom ARSA50-3. I found what I assume is the manufacturer’s website, and there is no reference.
Any clues what it does, and whether there is any reason for me to replace it, would be appreciated.
I don’t really want to talk to Charter about it yet, in case I’ve violated some goofy rule. Note: there is no warning sign visible like “do not remove under penalty of law”, which even my pillows still have.
Could it be some kind of fuse/breaker?