My assumption goes into saying that maybe your original fw.img dump was not successful.
Yes you got it working, but maybe not everything was working properly until you moved the Internet Settings, and maybe that part wasn't dumped correctly. You have to verify every aspect and app of the redNAND before you can catalogue it as a good dump.
I remember reading something about a user trying 17 times to dump the NAND until he got it right, perhaps you simply didn't test out every option before making it your official NAND dump.
Yes you got it working, but maybe not everything was working properly until you moved the Internet Settings, and maybe that part wasn't dumped correctly. You have to verify every aspect and app of the redNAND before you can catalogue it as a good dump.
I remember reading something about a user trying 17 times to dump the NAND until he got it right, perhaps you simply didn't test out every option before making it your official NAND dump.