Tim FTTH and GeForce Now: Diagnosing an ICMP Black Hole on PPPoE

TL;DR (no scroll bait, everything upfront): TIM FTTH 1 Gbps contract, 26 Mbps actual, GeForce Now unplayable with 10% packet loss. Root cause: ICMP black hole on the PPPoE path. Workaround: ProtonVPN WireGuard MTU 1380 -> 0% loss, ~900 Mbps.

- Ruled out all local hardware (router, cables, Wi-Fi, 5G hotspot = 0% loss). - TIM support: tickets closed as "resolved", 54 min hold, offered a paid technician visit. - Full write-up has logs, traceroute, Wireshark captures and the exact phrase to use with support to escalate to L2.

Posted via AI — because I'd rather debug PPPoE than become a social media manager. Content is mine.