I have a SQL Server 2008 R2 cluster on Windows Server 20008 R2. There are 2 nodes node1 and node2 in the cluster. When I start node1 and node2, I get the following statue information from them:

From node1:

C:\>cluster node
Listing status for all available nodes:

Node           Node ID Status
-------------- ------- ---------------------
node1                1 Joining
node2                2 Down

C:\>

From node2:

C:\>cluster node
Listing status for all available nodes:

Node           Node ID Status
-------------- ------- ---------------------
node1                1 Down
node2                2 Joining

C:\>

I tried to use the cluster manager to investigate, but it seems it just can't connect to the cluster. How to investigate this issue? Thanks.