======TRYING TO SET UP A PPTP VPN FROM MICROSOFT WINDOWS VISTA (TM) TO X-FAMILY RESULTS IN ERROR 741 ON VISTA PC.======



**Problem:** 
  * Trying to set up a PPTP VPN from Microsoft Windows Vista (TM) to X-family results in Error 741 on Vista PC. 
 
**Fact:**
  * 3CRTPX505-73 
  * 3CRTPX505-96 
  * 3CRTPX506-96 
  * 3CRX506-96 
  * 3CRTPX5-25-96 
  * 3CRTPX5-U-96 
  * TippingPoint 
  * PPTP 
  * VPN 
  * Microsoft Windows Vista 
  * Error 741 
  * X505 
  * X506 
  * X5 
  * 2.5.0 
  * 2.5.1 
 
**Cause:** For compliance with export legislation, X-family devices leave the factory supporting only encryption levels below 64 bits. Microsoft Windows Vista (TM) enforces a higher level of MPPE encryption for PPTP VPN connections and so rejects the encryption level offered by the X-family.


**Fix:** Install the high encryption software upgrade package on the X-family device. This will enable support for encryption up to 256 bits. MPPE encryption at high levels will automatically be offered to PPTP Clients. 




 --- //[[nce@itclatam.com|David Gonzalez]] 2021/04/08 10:11//