Hello Muhammad,
Check the sync with #fw ctl pstat on the both unit, CCP packet capture udp 8116 #tcpdump -nnei port 8116 and try to disable cluster membership from cpconfig, reboot, enable it, reboot for the both members,
In the end list all the kernel parameters and theirs values with the following command and compare the value with winmerge or egrep with "mac", "ccp", "cluster" key
#modinfo -p $FWDIR/boot/modules/fw_kern_64*.o | sort -u | grep _type | awk 'BEGIN {FS=":"} ; {print $1}' | xargs -n 1 fw ctl get int 1>> /var/log/fw_kernel_parameters.txt 2>> /var/log/fw_kernel_parameters.txt
#egrep "ccp" /var/log/fw_kernel_parameters.txt
Regards,
Abdessamed