just had an issue where routing stopped working and after changing the next hop on the default gateway from the interface name to the actual IP fixed the issue.
Before it was like this:
ip route 10.0.10.0 255.255.255.0 FastEthernet0/0
Then changed it to this and fixed the issue:
ip route 10.0.10.0 255.255.255.0 10.0.107.1
I remember reading somewhere that there is a difference but don't remember exactly what it is.