| Event Id | 20077 |
| Source | RemoteAccess |
| Description | An error occurred in the Point to Point Protocol module on port COM1. The remote computer does not support the required encryption type. |
| Event Information | According to Microsoft:With the release of the 128-bit Service Pack 3 (SP3) for Windows NT 4.0, RAS clients can now negotiate 128-bit RAS data encryption with a Windows NT 4.0 RAS server. Normal RAS data encryption is 40-bit. RAS clients that can take advantage of 128-bit data encryption are Windows NT Server or Workstation 4.0 with SP3 128-bit and Windows 95 Dial-Up Networking 1.2 128- bit. If you upgrade a Remote Access Service (RAS) server that uses 128-bit encryption to Routing and Remote Access Service, you will have only 40-bit demand-dial and RAS encryption. The following information explains how to restore 128-bit encryption with Routing and Remote Access Service. |
| Reference Links | How to Force 128-bit Data Encryption for RAS Enabling 128-bit Encryption for Routing and Remote Access |
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