Cannot Access file server via IP Address but it can be accessed by its hostname

Is there a reason it has to run as Network Service? For security purposes I would create a domain user account, run the service as the domain user, and assign the necessary permissions to the user.

I got it fixed by unjoining from the domain on the machine and removed it from Active Directory. Then rejoined the machine back onto the domain and now everything works again.

When looking at the Active directory record for the machine, it did not look right in some ways compared to the others. For example, the operating system was not set - the description and fields like these.