5.23 Problem on rb1100AHx2

After upgrade version 5.23, the RB110AHx2 has problem about read system routerboard and settings and the system tell send supot file to mikrotik… After reboot ospf is very slow to learn route…
This was happened on 2 RB1100AHx2… Did someone happen the same things?

[admin@ROS]/system routerboard settings> pr
baud-rate: 115200
boot-delay: 2s
enter-setup-on: any-key
boot-device: nand-if-fail-then-ethernet
cpu-frequency: 1066MHz
memory-data-rate: (unknown)
boot-protocol: bootp
enable-jumper-reset: yes
silent-boot: no
error - contact MikroTik support and

[admin@ROS] /system routerboard> pr
routerboard: yes
model:
serial-number:
current-firmware: 3.02
upgrade-firmware: 3.02
send a supout file (2)

Hmm, weird. Just upgraded to 5.23 (same routerboard model) and the same problem shows up. For now I can not see any problem with router itself, but I can observe the same message in console.

Any idea ? I buy this 1100AHx2 before 2 days with installed v5.23 and the same problem (found this post now .. ) . Is there any suggestion?

[admin@MikroTik] > /system routerboard print
routerboard: yes
model: 1100AHx2
serial-number:
current-firmware: 3.02
upgrade-firmware: 3.02
[admin@MikroTik] > /system routerboard settings print
baud-rate: 115200
boot-delay: 2s
enter-setup-on: any-key
boot-device: nand-if-fail-then-ethernet
cpu-frequency: 1066MHz
memory-data-rate: (unknown)
boot-protocol: bootp
enable-jumper-reset: yes
force-backup-booter: no
silent-boot: no
error - contact MikroTik support and send a supout file (2)

When mine did that, MikroTik support suggested using netinstall to load 6.x onto it. I didn’t want to run 6.x so I put 5.24 on. That fixed the memory and serial number/model problems. Since then, the serial number has gone missing again…

I put the 1100AHx2 in the least used part of my network. It has had several issues with 5.x and 6.0rcX, I just can’t bring myself to trust it anymore. It worked fine on 5.17 for a few months. MikroTik support thinks I was just trying to do too many different things with it. I think the hardware is broken or RouterOS doesn’t behave, yet, with the second PPC CPU.

I have some intel boxes with dual CPUs with work fine. They do everything the RB1100AHx2 was doing, except queue trees.