Derrils

New to the forum and need some help. I have Freud FT2200VCE under 1000 router that I have used sparingly for a couple of years. I finally bought a 1/2" shank bit after only having 1/4" shank bits in the past. I had trouble getting the new bit in the collet and tried for quite some time to get it to work. I finally gave up and went back to the smaller collet and old bit and then had the same trouble with that. The bit fits the collet nicely when out of the router but when the collet is inserted in the machine it becomes too small for the bit. I even ordered a new 1/2" collet thinking that maybe the original one was defective but had the same result. I have pushed the collet in as far as possible, I have cleaned out the router to make sure there is nothing in the way and it just won't work. Anybody have any ideas? Thanks for the help.

Hey I`m new here,have a nice day everyone!