Shit wifi which gets progressively shittier every year. They have a 10 year contract and have no intention to replace it. Whenever school tries to work on their wifi (to block sites like Snapchat and Twitter,
the only thing they will ever bother to do), their wifi gets shittier.
The school I went to actually had decent wifi the first year I went there. Until the second year, they started blocking
EVERYTHING. Not just porn,
EVERYTHING. They had a fucking whitelist system to block. That block slows everything down, and since everyone is using VPN, the wifi is even slower.
Just block the porn sites. Nobody will watch porn at school. And since everyone is going to go on VPN anyway, just remove the damn block.