we learned about troubleshooting wireless. some of those topics included the specifications and limitations of wireless. how do physical obstructions affect wireless? what are the ways that are affected? would there be ways to alleviate those obstructions, and what would they be? how would the placement of antennas help? channel allocation? in lesson 25, we learned about general network troubleshooting. what are some of the ways to consider when troubleshooting an issue? what would be the most common?