Unable to configure MTU above 1500 using 2.18.1-2 pre-release in the GUI

[Wysie]

Description of the problem

Unable to configure MTU above 1500 using 2.18.1-2 pre-release in the GUI

/bin/get_key_value /etc.defaults/synoinfo.conf supportMTU returns a yes value.

Running this in SSH seems to fix it though (if I check via ifconfig -a):

sudo ifconfig eth2 mtu 9000

Description of your products

Model(platform): DS420+ (geminilake) DSM version: DSM 7.2.1-69057 Update 5 Driver version: 2.18.1-2 pre-release Ethernet device: WisdPi WP-UT5 5Gbps (RTL8157/Type-A)