KB942840 Cluster service can no longer see each other.

Source: ClusSvc / Catergory: Node Mgr / Event ID: 1079
The node cannot join the server cluster because it cannot communicate with node *****SQLCN01 over any network configured for internal server cluster communication. Check the network configuration of the node and the server cluster.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Source: ClusSvc / Category: Node Mgr / Event ID: 1107
Cluster node *****SQLCN01 failed to make a connection to the node over network 'Cluster Communications'. The error code was 5.

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Usually this messages occurs after you change the cluster SERVICE ACCOUNT password.
Have you done this recently? If so, you must stop and restart the Cluster service on both nodes after you change either the Cluster service account or the Cluster service password. More info on this: http://support.microsoft.com/kb/317232

Also, check to make sure the specified network is available and functioning correctly. If you are running a firewall, disable it for now and see if you can connect.


Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Let me know if you need more help.

I believe that I answered your question.
Forced accept.

EE Admin
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
OS Security

From novice to tech pro — start learning today.