0ne or four byte address test fail

Dear mikko,
how can identified 0ne or four byte address
following condition not satisfied. server allow to connect all conditions

Logical addr. Phy addr. Adressing Method connection Est
0 1 1byte YES
1 1 1byte NO
0 256 1byte NO
1 256 1byte YES
0 1 4byte NO
1 1 4byte NO
0 256 4byte NO
1 256 4byte YES

no difference one and four byte server address
//Check server address with one byte.
if (((serverAddress & 0xFFFFFF00) == 0 && (serverAddress & 0x7F) == it->id) ||
//Check server address with two bytes.
((serverAddress & 0xFFFF0000) == 0 && (serverAddress & 0x7FFF) == it->id))
{
ret = 1;
break;
}