My site is http://3ck.us - it should load fine for anyone viewing this post. However, it will not load for me since it is hosted here at my house in my local network (it's on the same external IP as me).
Though I could access wordpress just fine until today (and absolutely nothing has changed), now I cannot access it from within my network in any of the following ways:
1. By typing 192.168.1.100 (the IP of the server)
2. By typing http://3ck.us
3. By typing localhost while on the server
4. By typing 127.0.0.1 while on the server
BUT, all of those work for everything else except wordpress. For example, http://3ck.us/quad and all variations work.
Again, I used to be able to access wordpress both internally and externally in regard to my home network. I even found the last time I could in the server logs: 3:04 PM. After that, no go.
In summary, I believe this to be a wordpress issue because I can access everything BUT wordpress from within my network, and can access everything including wordpress from outside.