Hi,
As suggested, I copied the authkey file and observe green icon with the node.  However, I still find two issues in my Datacenter cluster environment - 
- Cluster GUI portion is greyed out
 
- The node site is still not accessible on the Google Chrome Browser
 
- I don't understand why one of the node (pve-2) is not indicated as enabled but can access its shell
 
The output of the log is provided below -
journalctl -b 0 -u corosync
-- Journal begins at Tue 2022-09-20 18:40:58 IST, ends at Mon 2022-09-26 22:25:28 IST. --
Sep 26 22:18:22 pve-70 systemd[1]: Starting Corosync Cluster Engine...
Sep 26 22:18:22 pve-70 corosync[858]:   [MAIN  ] Corosync Cluster Engine 3.1.5 starting up
Sep 26 22:18:22 pve-70 corosync[858]:   [MAIN  ] Corosync built-in features: dbus monitoring watchdog systemd xmlconf vqsim nozzle snmp pie relro bindnow
Sep 26 22:18:22 pve-70 corosync[858]:   [TOTEM ] Initializing transport (Kronosnet).
Sep 26 22:18:22 pve-70 corosync[858]:   [TOTEM ] totemknet initialized
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] common: crypto_nss.so has been loaded from /usr/lib/x86_64-linux-gnu/kronosnet/crypto_nss.so
Sep 26 22:18:22 pve-70 corosync[858]:   [SERV  ] Service engine loaded: corosync configuration map access [0]
Sep 26 22:18:22 pve-70 corosync[858]:   [QB    ] server name: cmap
Sep 26 22:18:22 pve-70 corosync[858]:   [SERV  ] Service engine loaded: corosync configuration service [1]
Sep 26 22:18:22 pve-70 corosync[858]:   [QB    ] server name: cfg
Sep 26 22:18:22 pve-70 corosync[858]:   [SERV  ] Service engine loaded: corosync cluster closed process group service v1.01 [2]
Sep 26 22:18:22 pve-70 systemd[1]: Started Corosync Cluster Engine.
Sep 26 22:18:22 pve-70 corosync[858]:   [QB    ] server name: cpg
Sep 26 22:18:22 pve-70 corosync[858]:   [SERV  ] Service engine loaded: corosync profile loading service [4]
Sep 26 22:18:22 pve-70 corosync[858]:   [SERV  ] Service engine loaded: corosync resource monitoring service [6]
Sep 26 22:18:22 pve-70 corosync[858]:   [WD    ] Watchdog not enabled by configuration
Sep 26 22:18:22 pve-70 corosync[858]:   [WD    ] resource load_15min missing a recovery key.
Sep 26 22:18:22 pve-70 corosync[858]:   [WD    ] resource memory_used missing a recovery key.
Sep 26 22:18:22 pve-70 corosync[858]:   [WD    ] no resources configured.
Sep 26 22:18:22 pve-70 corosync[858]:   [SERV  ] Service engine loaded: corosync watchdog service [7]
Sep 26 22:18:22 pve-70 corosync[858]:   [QUORUM] Using quorum provider corosync_votequorum
Sep 26 22:18:22 pve-70 corosync[858]:   [SERV  ] Service engine loaded: corosync vote quorum service v1.0 [5]
Sep 26 22:18:22 pve-70 corosync[858]:   [QB    ] server name: votequorum
Sep 26 22:18:22 pve-70 corosync[858]:   [SERV  ] Service engine loaded: corosync cluster quorum service v0.1 [3]
Sep 26 22:18:22 pve-70 corosync[858]:   [QB    ] server name: quorum
Sep 26 22:18:22 pve-70 corosync[858]:   [TOTEM ] Configuring link 0
Sep 26 22:18:22 pve-70 corosync[858]:   [TOTEM ] Configured link number 0: local addr: 192.168.122.237, port=5405
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 1 has no active links
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 1 has no active links
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 1 has no active links
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 2 (passive) best link: 0 (pri: 0)
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 2 has no active links
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 2 (passive) best link: 0 (pri: 1)
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 2 has no active links
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 2 (passive) best link: 0 (pri: 1)
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 2 has no active links
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 3 has no active links
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 3 has no active links
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Sep 26 22:18:22 pve-70 corosync[858]:   [KNET  ] host: host: 3 has no active links
Sep 26 22:18:22 pve-70 corosync[858]:   [QUORUM] Sync members[1]: 4
Sep 26 22:18:22 pve-70 corosync[858]:   [QUORUM] Sync joined[1]: 4
Sep 26 22:18:22 pve-70 corosync[858]:   [TOTEM ] A new membership (4.eca) was formed. Members joined: 4
Sep 26 22:18:22 pve-70 corosync[858]:   [QUORUM] Members[1]: 4
Sep 26 22:18:22 pve-70 corosync[858]:   [MAIN  ] Completed service synchronization, ready to provide service.
Sep 26 22:18:25 pve-70 corosync[858]:   [KNET  ] rx: host: 3 link: 0 is up
Sep 26 22:18:25 pve-70 corosync[858]:   [KNET  ] rx: host: 2 link: 0 is up
Sep 26 22:18:25 pve-70 corosync[858]:   [KNET  ] host: host: 3 (passive) best link: 0 (pri: 1)
Sep 26 22:18:25 pve-70 corosync[858]:   [KNET  ] rx: host: 1 link: 0 is up
Sep 26 22:18:25 pve-70 corosync[858]:   [KNET  ] host: host: 2 (passive) best link: 0 (pri: 1)
Sep 26 22:18:25 pve-70 corosync[858]:   [KNET  ] host: host: 1 (passive) best link: 0 (pri: 1)
Sep 26 22:18:25 pve-70 corosync[858]:   [KNET  ] pmtud: Global data MTU changed to: 469
Sep 26 22:18:26 pve-70 corosync[858]:   [QUORUM] Sync members[4]: 1 2 3 4
Sep 26 22:18:26 pve-70 corosync[858]:   [QUORUM] Sync joined[3]: 1 2 3
Sep 26 22:18:26 pve-70 corosync[858]:   [TOTEM ] A new membership (1.f28) was formed. Members joined: 1 2 3
Sep 26 22:18:26 pve-70 corosync[858]:   [QUORUM] This node is within the primary component and will provide service.
Sep 26 22:18:26 pve-70 corosync[858]:   [QUORUM] Members[4]: 1 2 3 4
Sep 26 22:18:26 pve-70 corosync[858]:   [MAIN  ] Completed service synchronization, ready to provide service.
Sep 26 22:18:47 pve-70 corosync[858]:   [KNET  ] pmtud: PMTUD link change for host: 3 link: 0 from 469 to 1397
Sep 26 22:18:47 pve-70 corosync[858]:   [KNET  ] pmtud: PMTUD link change for host: 2 link: 0 from 469 to 1397
Sep 26 22:18:47 pve-70 corosync[858]:   [KNET  ] pmtud: PMTUD link change for host: 1 link: 0 from 469 to 1397
Sep 26 22:18:47 pve-70 corosync[858]:   [KNET  ] pmtud: Global data MTU changed to: 1397
root@pve-70:~# 
 
