My DSL service has gotten a little flaky in the past month, so I’ve got a visit from the phone company service tech set for tomorrow.
When checking the connections, I realized that my DSL line goes thru the telephone surge suppressor of my APC UPS (and it’s been plugged into that for about a month (dowt!) ).
APC claims less than 1dB loss thru their unit, and I’m going to do some testing to verify that.
Questions:
DSL surge suppression: Good idea or not?
How much signal loss should DSL be able to sustain before it gets flaky and starts to have trouble connecting?
What I’ve seen are connection failures when doing the PPP negotiation, such that the DSL modem re-cycles the connection (drops sync and tries again, and again, until it works). I’ve got DSL filters where they are supposed to be, and the wiring is all in good shape.