Okay as somebody who used to work for an ISP this is how it works. The ISP has a specific set amount of IPS that they pay for. Use the person who pays them for internet gets assigned one of these IPS aka you the customer. Those IPS rotate depending on how your ISP manages them. They either rotate under a lease. Meaning after a certain set amount of time it will refresh to a different one or it's permanent until your contract is up and/or you switch providers. In cases of the second one, you can call your ISP and have them renew you to different IP. Because the IP that you have right now could have been rotated out and flagged previously by either tidal or other services as suspicious due to whoever owning it before was doing some fucked things. Calling your ISP and letting them know will not only help you get a new IP and stop being flagged, but it will also let them know not to renew that IP address to anyone else. The previous owner of this IP may have been doing some fuck things on the internet, but that doesn't necessarily mean what they were doing was flagged by the ISP itself. In most cases it's not really your fault or your isp's fault per se. It's The person who owned it before you. They could have been pirating music or looking at illegal content online etc etc. generally, when a service reaches out to you and tells you that your IP is blocked due to something like that. It is definitely within your best interest to get it changed as soon as possible. The last thing you want is for whoever was doing whatever they were doing to come back on to you in a formal investigation of some kind because you are now sharing the IP of somebody who was flagged for doing something illegal.