I flashed my "old" FRITZ!Box to OpenWrt 19.07.4 and after a few trouble to configure the vlan settings my home network at the WAN interface works fine. But the Devices in the "Guest" & "DMZ" Networks only transfer ~3Mb/s from internet or the LAN Interface (WAN/LAN->DMZ/Guest) the outgoing traffic (DMZ/Guest->LAN/WAN) is faster is there something wrong at my config or is this a failure of the device?
Here's my network config:
root@OpenWrt:/etc/config# cat network
config interface 'loopback'
option ifname 'lo'
option proto 'static'
option ipaddr '127.0.0.1'
option netmask '255.0.0.0'
config globals 'globals'
option ula_prefix 'fd85:205d:01e3::/48'
config interface 'lan'
option type 'bridge'
option proto 'static'
option netmask '255.255.255.0'
option ipaddr '192.168.42.1'
option ifname 'eth0'
option ip6ifaceid '::1'
option ip6assign '64'
config switch
option name 'switch0'
option reset '1'
option enable_vlan '1'
config interface 'WAN'
option ifname 'eth1'
option proto 'dhcp'
option type 'bridge'
config interface 'WANv6'
option proto 'dhcpv6'
option reqaddress 'try'
option reqprefix 'auto'
option ifname 'br-WAN'
config switch_vlan
option device 'switch0'
option vlan '1'
option vid '1'
option ports '0t 1 2 3 4'
config switch_vlan
option device 'switch0'
option vlan '2'
option vid '2'
option ports '0t 5'
config switch_vlan
option device 'switch0'
option vlan '3'
option vid '3'
option ports '0t t1 t2 t3 t4'
config switch_vlan
option device 'switch0'
option vlan '4'
option vid '4'
option ports '0t t1 t2 t3 t4'
config switch_vlan
option device 'switch0'
option vlan '5'
option vid '5'
option ports '0t t1 t2 t3 t4'
config interface 'Guest'
option proto 'static'
option ifname 'eth0.3'
option type 'bridge'
option netmask '255.255.255.0'
option ipaddr '192.168.188.1'
option ip6ifaceid '::2'
list dns '9.9.9.9'
list dns '1.1.1.1'
option ip6assign '64'
config interface 'DMZ'
option proto 'static'
option ifname 'eth0.5'
option type 'bridge'
option netmask '255.255.255.0'
list dns '9.9.9.9'
list dns '1.1.1.1'
option ip6ifaceid '::10'
option ip6assign '64'
option ipaddr '10.11.1.1'
config route
option target '192.168.22.0'
option gateway '192.168.42.57'
option netmask '255.255.255.0'
option interface 'lan'
config route
option target '100.64.0.0'
option gateway '192.168.42.57'
option netmask '255.192.0.0'
option interface 'lan'