> Their network is encapsulated to all hell since it's ipv6-only so I recommend decreasing MTU's when connecting to it (something like 1320 seems to work or sites like duckduckgo get blackholed).
I will also point out that a lower WAN MTU will cause forwarded (and only forwarded) outgoing connections to fail if the phone's firewall rules aren't properly configured to adjust TCP MSS! Pings will work, sites will connect, but you'll get no data back. This can seem awfully like some kind of active interference, when it's just a passive network problem.
I will also point out that a lower WAN MTU will cause forwarded (and only forwarded) outgoing connections to fail if the phone's firewall rules aren't properly configured to adjust TCP MSS! Pings will work, sites will connect, but you'll get no data back. This can seem awfully like some kind of active interference, when it's just a passive network problem.