Hi again. In a recent post I mentioned having internet problems. It turns out that was only the beginning. While I've had spots of usable internet here and there, the internet has been largely unusable at my house for about a week. I complained previously about my mom buying new modems. I was right that those weren't the issue. But the real cause is much much worse. We had a technician come over today - the second in a week - and he was very competent and detailed in explaining our situation. It turns out the coax cables in this house are extremely old - a model called RG54 I think - which predate the nineties. They're thinner, less shielded, and more vulnerable to various kinds of damage. He explained to us that this is one of the main underlying causes of our problems, as it leads to uncontained voltage traveling up the coax cable and hitting the modem. This causes the modem to lag and freeze, even on local connections between devices on the same network, or fail device logins entire