I also have Comcast Business, but I'd give them a 40/100. (But most of that score is because the service usually works.) > I've never had a tech try to run me

I also have Comcast Business, but I'd give them a 40/100. (But most of that score is because the service usually works.) > I've never had a tech try to run me through a "script", or argue that I didn't know what I was talking about when I tell them I've already done all the debugging and the problem was on their end. I've had two major outages: * One outage where IPv6 connectivity was completely lost, and IPv4 connectivity was completely unaffected. I noticed this immediately, because I don't use Comcast's DNS servers; instead I use Google's, over IPv6 exclusively, so it was immediately apparent. * One outage where IPv4 SYN packets would go unanswered, however, once answered, the connection was quite stable. IPv6 was completely unaffected. In both instances, the tech on the phone insisted that "my signal strength" was "very weak", and that they'd send a tech out to fix that right away. The representatives both time were unable to comprehend — let alone answer — my question of "how would signal strength only affect one of IPv4/v6? Do you think the copper can somehow discriminate which protocol is in use?" In the end, the representative adjusted by strength until it was supposedly awesome, and in neither case did the problem get resolved at that point, of course. It took much insisting to get them to look at their own network in the first case, and to replace my modem in the latter case. (I have no idea what went wrong in the latter case, but my guess is "something with NAT" and/or the IPv4 hardware. Regardless, replacing the modem did fix the issue.) I've also tried — and have yet to convince them of this: every single one of their black Comcast-branded modems will forget the 2 GHz WiFi WPA-PSK key on any sort of power cycle or reset, and revert back to the default, but only for the key. (All other settings, such as port forwardings or the SSID for the AP remain intact.) This, I believe, only happens if you use an actual key; if you use a password from which a key is derived, you won't be affected. They've also tried to upsell me during outages … which, really? Why do companies do that? I did at least finally get a representative that was human enough to laugh when I told them that the modem was doing the "blinken light dance". (The LEDs on the front panel go through a sequence as the device boots and acquires a connection.) > When I called to get PTR records added for my five static IPs, I would love to have this … I just didn't think I could request such a thing without the hell of trying to explain what a PTR record is.