1-800-691-1991 | 9am - 8pm ET
EN

Backup jobs fail intermittently with Error observed by underlying BIO:

KB ID: 2369
Product: Veeam Backup & Replication
Published: 2017-11-01
Last Modified: 2020-08-13

Challenge

Intermittent network failures when communicating to the VMware host. The errors can vary but all have some variation of: 
“Error observed by underlying BIO: No such file or directoryDetail: 'SSL connect failed in tcp_connect()', endpoint:” 

Guest processing credentials test will also fail over VIX with this error, and you may get a pop up error bellow when editing the Vsphere host: 

User-added image

But on a second try it will continue.

Cause

Unsupported network configuration in VMware.  A vm kernel nic with Management is set on a port group no longer becomes eligible to have vms on it.  If a vmkernel port with management option is added to a network with vms attached you will see the following warning in VMware. 

User-added image

In Veeam we intermittently get the error “Error observed by underlying BIO: No such file or directoryDetail: 'SSL connect failed in tcp_connect()', endpoint:”,  however sometimes the jobs will work if retried enough times. 

Solution

Remove the Management vmkernel port from the vm network, or move the vms to a network without a management vmkernel port.
 
KB ID: 2369
Product: Veeam Backup & Replication
Published: 2017-11-01
Last Modified: 2020-08-13

Couldn't find what you were looking for?

Below you can submit an idea for a new knowledge base article.
Report a typo on this page:

Please select a spelling error or a typo on this page with your mouse and press CTRL + Enter to report this mistake to us. Thank you!

Spelling error in text

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Your report was sent to the responsible team. Our representative will contact you by email you provided.

Oops! Something went wrong.

Please try again later.

KB Feedback/Suggestion

By submitting, you are agreeing to have your personal information managed in accordance with the terms of Veeam's Privacy Policy.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Thank you for your interest in Veeam products!
We've sent a verification code to:
  • Incorrect verification code. Please try again.
An email with a verification code was just sent to
Didn't receive the code? Click to resend in sec
Didn't receive the code? Click to resend

ty icon

Thank you!

We have received your request and our team will reach out to you shortly.

OK

error icon

Oops! Something went wrong.

Please try again later.