JSI Tip 1342. RAS "Auto-Redial" and "Redial on Link Failure" do not function on SBS.

Both these features require the Remote Access Autodial Manager service, which is disabled by default.

The Microsoft Proxy Server Autodial requires that Remote Access Autodial Manager service be disabled. If your internet connection does NOT use dial-on-demand, you can set the Remote Access Autodial Manager to Automatic (Control Panel / Services / Remote Access Autodial Manager / Startup).