All sites are on the same server. (Windows 2019 using IIS and latest version of WP 5.3.2)
MainWP Dashboard and MainWP Child are the latest versions available in the Plugins of WP currently.
Have tried installing the MainWP plugin both as a LocalHost and as a WebHost, makes no difference.
When I try and connect a client site (they have the MainWP Client installed) I get a “Invalid+request%21” message. This occurs from the setup wizard or from the main page Sites/Add New.
The CLIENTS all have WordFence installed, but if I deactivate WordFence I still get the same error message specified above.
The TEST CONNECTION button finds the child sites no problem. The issue is when trying to CONNECT the child site into the mainWP.
Oh… and I AM using the Security ID on the clients and entering it into the MainWP page when trying to connect them. Also is an SSL connection using the Let’s Encrypt TLS1.2 option from the drop down.
Also just tried with disabling SSL and connecting via HTTP instead… no difference same error message listed above
Any assistance would be greatly appreciated.