- I don't have a flight path to Mechagon
- I left Mechagon before finishing the introductory quest line and can't return
- I cannot unlock the Mechagnome Allied Race, I don't know how to go back to Mechagon City
- I had Mechagon unlocked, I did a Faction Change, and now I cannot go back
In order to go to Mechagon Island you must complete the full introductory quest line. This quest line requirest hat you have first unlocked Nazjatar. Please check this Wowhead guide for details.
If you change factions, you must complete the introductory quest line again.