I logged in today and it showed me an alert saying that I logged in from another location and that one was blocked. This is due that I have an ISP that routes me through different IPs, hence I can reach the host in multiples ways.

I ask for my account not to be blocked. I cannot get infected by trojans (I run on Linux) and I use 2F Authentication on Steam, so I'll be okay.

Thanks.

The checking only blocks the other access when you have another active connection with another IP. It is to make sure no two IPs has logged in at the same time. I do not think the system has blocked any of the IPs. I agree that the message itself is confusing and hope to expand the options and information so that you could know which IPs have ever logged in to your account and let you white flag IPs.