Hello everybody!
I have main device - RB1100AHx2 (ppc)
this device connected to RB750UPr2 (mipsbe).
RB750UPr2 connected ti four WIFI RB Metal 2SHPn.
the ethernet ports bridged to bridge “TRUNC”
TRUNC assigned 5 VLANs.
VLANs bridged to bridges LAN, WAN, GUEST …
Before, I have firmware 6.37.1 on all devices. All work fine.
After upgrade all devices to firmware 6.38, the link between RB1100AHx2 and RB750UPr2 is lost.
If I bridged ethernet ports on both RB1100AHx2 and RB750UPr2 to simple bridge without VLANs, link is ok.
If I bridged ethernet ports on both RB1100AHx2 and RB750UPr2 to TRUNC with several VLANs, the link is lost.
I try sniffer by wireshark. RB1100AHx2 send to RB750UPr2 only STP. RB750UPr2 doesnt any activity.
BUT links by TRUNC with VLANs between RB750UPr2 and WIFI RB Metal 2SHPn is work! VLAN’s work.
The problem with VLAN’s ONLY between RB1100AHx2 and RB750UPr2.
I downgrade RB750UPr2 to 6.36.4. The work is fine.