1998 Mitsubishi Montero starting

I have seen this question on your site quite a bit but here goes again. Perodically I get in my car (suv) and the alarm is on and it wont start. I have tried dissconnting bat. Various unlocking with key in door. Manualing unlocking, removing fuse. Leaving key on for half hour. Jumping, holding my mouth at differant angles ( joking). Pushing ( what dealer sai ) led light.I have tried so many things it aint funny. Any suggestions? Is there a way to just bypass this or is there a transponder in key that may have gone bad. I get all lights on dash. And even tried putting it in nuetral ( seems like I remember something in the old days about neutral switch going bad ).I would be glad to donate to your site. Might as well i've donated to 3 others just to have them all tell me to try what I allready have. Those sites must be puter generated or maned by someone who cant read, because when I say I tried something they respond back with an anwser that tells me to try exactly what I said I tried.