Hi @Wolfcu69, thanks for taking the time to report this and welcome to Wikimedia Phabricator!
Has this been brought up at https://www.mediawiki.org/wiki/Project:Support_desk first? Which "documentation" do you refer to?

Documentation: https://www.mediawiki.org/wiki/Extension:VisualEditor

Yes I brought up in the Support Desk.

Please mention so, as discussion in two places duplicates time spent by folks. Link: https://www.mediawiki.org/wiki/Topic:Wo1btn1sxv33c8wx

Support Desk ticket - https://www.mediawiki.org/wiki/Topic:Wo1btn1sxv33c8wx.

Is there any way to get more information about the following error in this excerpt from the debug file?

[http] * HTTP request failed due to unknown error.

• There was a problem during the HTTP request: 0 Error

[Pingback] Pingback::run: failed to send; check 'http' log channel
[DBQuery] Pingback::schedulePingback [0s] localhost: COMMIT

These are the settings that I am aware that involve the Visual Editor. Note that only one of them is not commented out. Should I be setting any of the commented settings to certain values? If so what values? Thanks.

wfLoadExtension( 'VisualEditor' );

#$wgDefaultUserOptions['visualeditor-enable'] = 1;
#$wgVisualEditorPluginModules
#$wgVisualEditorPreloadModules
#$wgVisualEditorPreferenceModules
#$wgVisualEditorParsoidAutoConfig;
#$wgVisualEditorRestbaseURL
#$wgVisualEditorFullRestbaseURL
#$wgVisualEditorAllowLossySwitching
#$wgVisualEditorSerializationCacheTimeout
#$wgVisualEditorAvailableNamespaces
#$wgVisualEditorAvailableContentModels
#$wgVisualEditorUseChangeTagging
#$wgVisualEditorEnableWikitext
#$wgVisualEditorEnableDiffPage
#$wgVisualEditorEnableDiffPageBetaFeature
#$wgVisualEditorEnableVisualSectionEditing
#$wgVisualEditorUseSingleEditTab
#$wgVisualEditorSingleEditTabSwitchTime
#$wgVisualEditorTabPosition
#$wgVisualEditorTabMessages
#$wgVisualEditorAutoAccountEnable
#$wgVisualEditorDisableForAnons
#$wgVisualEditorTransitionDefault
#$wgVisualEditorShowBetaWelcome
#$wgVisualEditorNewAccountEnableProportion
#$wgVisualEditorFeedbackTitle
#$wgVisualEditorFeedbackAPIURL
#$wgVisualEditorSkinToolbarScrollOffset
#$wgVisualEditorBrowserUnsupportedList
#$wgVisualEditorBrowserBlacklist
#$wgVisualEditorEnableTocWidget
#$wgVisualEditorRebaserURL

Peter,

Does it matter if the MediaWiki IIS site is set to a specific hostname? In this case the URL is https://vyguidewikitest.jaxnavy.org/index.php?title=Main_Page. The vyguidewikitest A record points to the IP address of the server hosting MediaWiki. I was looking at https://www.mediawiki.org/wiki/Manual:$wgVirtualRestConfig and saw that the default Parasoid and RESTBase URL setting points to localhost. I was wondering if the hostname setting would create a problem for this. I was trying a couple of settings changes related to this but nothing has worked yet.

I found this web page - https://www.mediawiki.org/wiki/Manual:Installing_MediaWiki_on_Windows_Server_2016. It had some additional configuration that I previously missed. Once I did that and got curl config working correctly, I am now getting a http 500 error from the Parsoid/RESTBase server when I click on the Edit link. Is there any logging that I can turn on that can tell me what is going on in the Parsoid/RESTBase server? Thanks.