transferring website and wordpress database

So, I’ve tried to transfer a website, and I have successfully done so on text.annarpack.com however, on dev.petfeedster.com I cannot log into wordpress. I have updated the mySQL databases to have the site url and the home url the same, but on dev.petfeedster.com, it creates a constant redirect loop, so I changed the home url to https://www.dev.petfeedster.com and now its working.

I don’t know if I should be trying to replace wordpress files via ftp or if I should be trying to work with the mySQL database. I don’t know where to go from here because I don’t know why it works on test.annarpack.com and not on dev.petfeedster.com.

If anyone can help that would be awesome! Thanks!