Noticed this error in syslog , hadn't factory reset after updating , so performed reset setup from scratch , rebooted added my AC66U-B1 as mesh node . rebooted error still present.
May 5 06:05:07 lldpd[354]: minimal kernel version required is 2.6.39, got 2.6.36.4brcmarm
May 5 06:05:07 lldpd[354]: lldpd may be unable to detect bonds and bridges correctly
May 5 06:05:07 lldpd[354]: consider recompiling with --enable-oldies option
May 5 06:05:08 lldpd[366]: cannot get ethtool link...
AC88U System log latest firmware
May 5 06:05:07 lldpd[354]: minimal kernel version required is 2.6.39, got 2.6.36.4brcmarm
May 5 06:05:07 lldpd[354]: lldpd may be unable to detect bonds and bridges correctly
May 5 06:05:07 lldpd[354]: consider recompiling with --enable-oldies option
May 5 06:05:08 lldpd[366]: cannot get ethtool link...
AC88U System log latest firmware