Yahoo messenger block by IP address or User ID?

[born2drv]

I have a small mystery on my hands and I was wondering if anyone could help me solve it.

When I login a computer and load yahoo messenger, someone is offline. But when I use the same computer, on a different IP address they are visible. In fact I've tried 5 different IP's, and they are visible only on 2 of the 5? Same computer, same everything, just different wireless networks.

So I'm wondering if they have blocked me from viewing them being online, or if it's some glitch?

Does yahoo messenger block you based on IP address or by User ID?

Thanks!

[mack]

I think Yahoo! must block users by their username, blocking an IP address would be far to unreliable, especialy with so many users on dynamic ip addresses.

Can't realy offer much of an explination as to why you can see users on some pc's, but not others. My suggestion would be to upgrade to the latest verson of messenger on all systems and try again, there may be an issue with unsuported features in different version of Yahoo! messenger.

Mack.

[piatkow]

I can't remember which program I was using but I know that I have chatted to somebody while they were shown as "offline" before now.

[mack]

The user can set their status to invisible and still talk with people on their contacts list, but you should see the same thing on any internet connection.

Mack.

[mcavic]

If it was Skype, I'd say it's probably a firewall/router issue on your end, but as far as I know, Yahoo doesn't work the same way. On some messengers, if you talk to someone who looks offline, but really isn't, they'll pop on when you send a message.