Cisco Router

I have 3 Cisco 520W small business router in our network.  One of our VPN connections is dropping its connection approximately every hour or so today.

There are some common errors that I am seeing  below:

Wed Aug 06 13:21:26 2014 (GMT -0300): [Cisco] [IKE] ERROR:  encryption 5 failed.
Wed Aug 06 13:21:26 2014 (GMT -0300): [Cisco] [IKE] ERROR:  failed to start post getspi.
Wed Aug 06 13:21:26 2014 (GMT -0300): [Cisco] [IKE] INFO:  an undead schedule has been deleted: 'quick_i1prep'.
beckredderAsked:
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.

giltjrCommented:
Are there any other errors right before that that may say something about phase 2 renegotiation?
0
beckredderAuthor Commented:
These are the only errors logged.

Wed Aug 06 13:21:26 2014 (GMT -0300): [Cisco] [IKE] INFO:  Configuration found for xxx.xxx.xxx.xxx
Wed Aug 06 13:21:26 2014 (GMT -0300): [Cisco] [IKE] INFO:  Configuration found for xxx.xxx.xxx.xxx
Wed Aug 06 13:21:26 2014 (GMT -0300): [Cisco] [IKE] INFO:  Initiating new phase 2 negotiation: xxx.xxx.xxx.xxx[0]<=>xxx.xxx.xxx.xxx[0]
0
giltjrCommented:
Does the other side get any errors?  What is on the other side?
0
Ultimate Tool Kit for Technology Solution Provider

Broken down into practical pointers and step-by-step instructions, the IT Service Excellence Tool Kit delivers expert advice for technology solution providers. Get your free copy now.

beckredderAuthor Commented:
On the other side is the exact same model router and its not getting the same errors.  There are three locations.

"A" has the errors

"A" loses connection with "B"

"A" keeps connection always with "C"

"B" keeps connection always with "C"
0
giltjrCommented:
Sorry about asking so many questions.

Are the VPN connections new, or have they been running without problems for awhile?

I would verify that the config between A and B are the same.  Obliviously something is failing during the phase 2 renegotiation which I am assuming you have setup to do every 3600 seconds.

You may have to restart "router A."
0

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
beckredderAuthor Commented:
The VPN connections are not new; I believe they have been in place since may of 2011.

I can verify that the configurations on all 3 routers are all the same and they are all setup to renegotiate every 3600 seconds.

We were rebooting B when connection was lost and the VPN connection came back up.

Funny thing is that at 2:55 EST, the connection between A and B was expiring however this time it connected and the VPN stayed stable.  (10 minutes ago approximately)
0
beckredderAuthor Commented:
Thanks!
0
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
Routers

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.