Internet Access

I hope this is the correct place to post this, I have BT Broadband and I don't remember having this situation when I was on AOL.

I've noticed for some time that when I left-click on the signal strength icon in the Notification area, bottom right-hand corner of the screen, there's Wireless Network Connection showing, but also Wireless Network Connection 2. Both show my HH3 router, BTOpenzone and BTFON, however this morning I've noticed that although connected as usual to WNC, the WNC 2 signal strengths are stronger than WNC.

I don't know whether the difference has been there before and I simply didn't notice, but can anyone tell me why I have 2 identical connections showing, but why there's a variance in the signal strengths, and why I'm connecting to the poorer signal?