As described in the title. Do you have the same problem ? Using an user-agent-switcher, e.g faking Opera from Chromium, I get served the content normally, although I got eventually blocked later, suspected of being an IA.
There may be some device on your network that's being abused as a residential proxy by "AI" companies, causing you to get caught in scraper block waves. A lot of sketchy mobile apps especially tend to bundle this kind of malware. Have a look at whether anything is using an inexplicable amount of bandwidth (doesn't have to be big, just bigger than expected).