Just upgraded from 26.7.5 to 26.7.6 and my WAN DHCP via VLAN 300 was gone :(
Bug can be solved easily though :
For whatever reason there was a /32 subnet entered in the subnet field while it was always empty just like any Static IP Address configuration that can be entered ?!
Removed it and did a reboot : Internet connection working again! :)
Shows again how important is to read the Release Notes before upgrading :
QuoteThis update finally brings interface settings to MVC/API!
o You can find them on the assignments page integrated into the existing grid.
o Commonly required DHCP advanced options not in basic mode have been made available.
o Advanced/file based modes for DHCP are gone and will reset on save.
o Saving settings queues them for reconfiguration and storage.
o A reboot without apply will discard the previously saved changes.
o Apply works similar to the old interfaces.php page but uses a rewritten backend sequence.
o The old interfaces.php page is still available retaining the old style settings.
o The old interfaces.php page will likely move to a plugin for 27.1.
We are looking for your feedback on this historic milestone!
You know immediately where to look! LOL!