diff --git a/_posts/2.3/2021-05-01-install.md b/_posts/2.3/2021-05-01-install.md
index 0254b235..9c87a91a 100644
--- a/_posts/2.3/2021-05-01-install.md
+++ b/_posts/2.3/2021-05-01-install.md
@@ -445,6 +445,34 @@ One challenge in maintaining a BigBlueButton 2.2 server was the packaging script
 
 The full description for local overrides for configuration files was moved to [Administration -> Configuration Files](/admin/configuration-files#local-overrides-for-configuration-settings)
 
+# Troubleshooting 
+
+## Package locales-all is not available
+
+The package `bbb-libreoffice` needs to build a docker image for libreoffice.  If you receive the following error when installing on a network behind a firewall
+
+```
+Package locales-all is not available, but is referred to by another package.
+This may mean that the package is missing, has been obsoleted, or
+is only available from another source
+
+E: Package 'locales-all' has no installation candidate
+E: Unable to locate package libxt6
+E: Unable to locate package libxrender1
+The command '/bin/sh -c apt -y install locales-all fontconfig libxt6 libxrender1' returned a non-zero code: 100
+dpkg: error processing package bbb-libreoffice-docker (--configure):
+ installed bbb-libreoffice-docker package post-installation script subprocess returned error exit status 100
+```
+
+Ubuntu 18.04 uses systemd-resolved, which presents a local caching resolver and registers this at `/etc/resolv.conf`. If you get they above error and have a local name server, such as `10.11.12.13`, then try adding it with the hosts `resolv.conf`.
+
+```
+echo "nameserver 10.11.12.13" > /etc/resolv.conf
+```
+ 
+For more details see [this issue](https://github.com/bigbluebutton/bbb-install/issues/385).
+
+
 # Feedback and reporting bugs
 
 If you found a reproducible bug, please report it in the [GitHub Issues section](https://github.com/bigbluebutton/bigbluebutton/issues) with steps to reproduce (this will make it easier for the developers to fix the bug). Indicate in the body of the bug report that this applies to BigBlueButton 2.3 and give us the client build number, which you can find either with `dpkg -l | grep bbb-html5` or within the client in the `Settings -> About` menu.