MTU does not reset
built on Sat Mar 26 00:18:39 EDT 2011
Steps to reproduce:
1. Go to Interfaces
> WAN MTU is now changed to 1492, verfied by doing an ifconfig
2. Change MTU to 1492
3. Save and Apply
4. Delete the MTU setting (e.g. change 1492 to empty string)
5. Save and Apply
MTU still shows 1492 from ifconfig.
Workaround is manually set the MTU back to 1500 or whatever the hardware default is.