I just moved my installed WordPress from shared hosting (which was working just fine) to dedicate server and I keep getting "500 Internal Server Error" error . I tried deleting .htaccess, renaming plugins folder, increasing memory and nothing worked. What else should I try?
One thing I noticed is that when I change PHP support from "FastCGI 5.4.45" to "Apache 5.4.45" I get "504 Gateway Time-out" error.