A colleague told me he can't access "some sites" anymore. This only happens when he's connected to a certain wifi access point. We run an ICMP traceroute. It works. Then we run a TCP traceroute on port 80. It works. Then we run a traceroute on port 443, that works too. So why are some sites not working?
Gee, if we do the port 80 trace over IPv4, there is no response. Let's try port 443 on IPv4? Works.
OFFICIAL NETGEAR TCP PRECIATION CHART
Port | IPv4 IPv6
21 | ✔ ✔
70 | ✔ ✔
80 | ✔
443 | ✔ ✔
How can somebody even consider building something like that? How did we end up with a product that can't reliably fulfill its main purpose of just delivering pacekts? Yes I'm angry. Angry at this access point for messing with packets. Angry at Netgear for making such access points. Angry at the world for allowing Netgear to exist.