Tape the end of the fish tape tightly onto the cable with electrical tape.
Cable drop through attic multistories.
If you will need to fish wiring through a wall drill a hole through the wood plate in the attic only.
If drilling downward through the floor repeat the above procedure but expect to pass through 3 4 inch 1 9 cm sub floor and up to an additional 3 4 inch 1 9 cm of finish floor hardwood etc once 2 inches 5 1 cm have been penetrated it should be much easier to drill.
How to install an attic fan video.
Use a piece of string that you can add a small weight to such as a steel nut or whatever you can find.
This video shows how to install an attic fan to help keep your home cooler.
I ve never run much coax but if are a 3 4 in hole might be a better.
Yes this should be corrected and it would be good to have the wiring and all the circuit connections inspected as well.
Pull the cable through with a fish tape.
When cutting through drywall from the interior of a room use a utility knife and cut carefully you don t want to drill through a hidden wire or the paper.
Then retract the fish tape to pull the cable through.
Carefully extend the fish tape from one opening to the other.
And use semi rigid wiring fish tape to pull your wiring down to your outlet location.
Drop the string and catch it in the wall cutout and use that to pull the cable through.