On Tuesday, March 09, 2021 12:12:40 AM Felix Miata wrote: > David Wright composed on 2021-03-08 22:37 (UTC-0600): > > I realise that, but if your service were to become unsatisfactory, > > then before you complained, you'd want to check that it's not your > > modem at fault. Would you expect your spare modem to work, because it > > has a different MAC from what's expected by the ISP's end of the line.
> Whenever I get a mind to, I call my ISP, tell them I'm changing modems, and > what the new MAC is. It gives me some confidence it's still useful. If > there's a problem they or I think a modem switch might shed light on, I do > the same. I have DSL service, and a spare modem that I've occasionally put in service (for testing the "main" modem) and have not had to notify the ISP. (They were both provided by the ISP (Earthlink).) I don't know if cable modems would work the same -- I don't know if the ISP sees the MAC address on a DSL line.
