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

Network name cannot contain the following symbols: ~`!@#$%^&*+=;'><|?*:"


Veeam incorrectly displays portgroups in Virtual Lab -> Settings -> Isolated Networks and when trying to add such a port group the following message box is displayed:
User-added image


It is a known VMware SDK limitation where special characters are not escaped when used in names of vSphere entities such as port groups. It might still be possible to add that port group as your production network in the Virtual Lab Properties -> isolated network settings, but the Surebackup job will not be able to match a port group with a special char to the production one resulting a Sure Backup job failure.

It's also true for Hyper-V environments, characters to avoid are: 
  • the < is assumed to be the beginning of a tag;
  • the & is assumed to be the beginning a entity reference.


To resolve this issue, you can override limitations set by implementing registry tweak on a Veeam Backup and Replication server.

Key path: HKEY_LOCAL_MACHINE\SOFTWARE\Veeam\Veeam Backup and Replication
Value name: RestrictedNetworkSymbols
Value type: REG_SZ
Value data: ~`!@#$%^&*+=;'><|?*:\" - this is the default value. To fix the error, exclude symbols you would like to use. For example, if you would like to use "pipe" symbol in name set value data to: ~`!@#$%^&*+=;'><?*:\

The change will only apply after restart of Veeam Backup service. Make sure no jobs or tasks are running prior restart.


More information

Note that some of the symbols cannot be properly processed on VMware side. If after the setting the registry tweak, you notice unexpected failures, either remove the registry value or change it accordingly.
KB ID: 2074
Product: Veeam Backup & Replication
Version: 6.x, 7.x, 8.x, 9.x
Published: 2015-11-16
Last Modified: 2020-08-13
Please rate how helpful this article was to you:
5 out of 5 based on 1 ratings
Thank you for helping us improve!
An error occurred during voting. Please try again later.

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

Knowledge base content request
By submitting, you agree that your personal data will be managed by Veeam in accordance with the Privacy Policy.

ty icon

Thank you!

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


error icon

Oops! Something went wrong.

Please go back try again later.