said by EG:said by nerdburg:You can forget all the "oversold" silliness
I can't say that I agree 100% with such an overall blanket statement. It's not like it is impossible for there to be capacity/congestion issues even though CC seems to be fairly prudent with capacity planning.
Sure, I can agree with you there. You do need to split nodes now and then.
I don't think it's OP's problem tho since he has fluctuating signal issues and is losing connection altogether on occasion. Generally if a node is having capacity issues, you would see modest congestion problems and those problems tend to be very sporadic. In my experience, the time of day thing is a red herring and premise techs tell customers all kind of stupid crap.
OP needs an experienced tech out there to spend some time and diagnose his problem. Personally, I'd re-check all the wiring, maybe swap the modem and monitor the MER/BER with a QAM analyzer for awhile.