I have strange problem with ping on SXTsq Lite5 (ROS 6.47.2).
SXT has only one address 10.110.28.252/24 and its ether1 interface is connected only to one device with address 10.110.28.8/24. When the interfaces wlan1 and ether1 are bridged I can't ping 10.110.28.8 from SXT, but when bridge is off, the device 10.110.28.8 can be pinged from SXT. On SXT I've turned off firewall, NAT, DHCP, RTSP - without success.

SXT works as station bridge, nv2, and is connected to AP RB921GS-5HPacD r2, which works as bridged AP (10.110.28.253/24) nv2. I can't also ping 10.110.28.8 from RB921. There are no other devices connected to AP (except SXT mentioned above).

When you add ether1 to the bridge move the IP to the bridge.