Comcast

They’ve found another way to piss me off… somehow. You have to admire their persistence.

Prohibited Uses of HSI. [High-Speed Internet service] You agree not to use HSI for operation as an Internet service provider, a server site for ftp, telnet, rlogin, e-mail hosting, “Web hosting” or other similar applications, for any business enterprise, or as an end-point on a non-Comcast local area network or wide area network. You agree to indemnify, defend and hold harmless Comcast and its affiliates, suppliers, and agents against all claims and expenses (including reasonable attorney fees) arising out of any breach of this Section including, but not limited to, any claims based on or arising out of any material violation of any applicable law.

Their TOS is available here. I’d call their tech support and ask if I can opt-out and have them stop blocking port 80, but their call center says they’re closed. The robot suggests that I call back during normal business hours, but then helpfully neglects to mention what those hours may be. I’m going to renew my push to switch to C2.

EDIT: Turns out they’re not blocking port 80. I had forwarded the port on my router, but I was forgetting to add port 80 to my firewall. I feel silly now. That would explain why it would show up as closed, then when I forwarded it, it was filtered. Oops.

EDIT 2: Also turns out I was misunderstanding this section. The limitation is only for businesses?