Re: How do gambling sites detect or know your using a vpn?

If you notice a particular user who, each time they login to their account, appears in a new location with a different IP address from their last login, is that not an obvious sign of VPN usage?

This is not entirely correct.

Most people are using dynamic IP address which make your IP address keep changing even you're didn't move to anywhere. Let's say that you're live in Los Angeles, but your IP address could show you're in Washington, Dallas, Boston etc.

Who is doing the assigning of the dynamic ip address, the isp or the router? Because one article I read elsewhere said the ISP, the other said the home router. Can a home router also moonlight as a DHCP (Dynamic Host Configuration Protocol)?

I read an article a while ago that VPN operators may offer you either the static or dynamic IP, it depends on their general service and the specific/special service options you subscribed to. But you should know that your local IP could be dynamic too without you interfering with it from home or anywhere. This is however common in most countries, even mine is dynamic. This is for security reasons according to what I further read about it. But this dynamism of IPs may still not hide the gambler from the detection of casinos, once the IPs are generally offed by VPN providers, they can be easily detected. Unless they offer you one of their uncommonly assigned IPs and make it personal for you, which you would have to pay more for.