There are issues with some drivers for Windows 10 and Windows 11 when using IPsec VPN. The IPsec tunnel cannot be established. On both operating systems the issue is related to the driver of the network card. The problematic driver was deployed via Windows Update. In many cases the network…
We have recently seen an accumulation of problems with IPSec VPN tunnels. The problem was recognized by Swisscom and fixed with a new firmware. Further information can be found in the release notes (on this page). The firmware version from which the problem was fixed is: 9.52.12 B16++ (June 2023).
After Fortigate upgrade v6.4 > v7.0.1 (or later) the S2S-dialup VPNs did not work anymore. Tunnel negotiation is successful and phase 1 and 2 get up. Traffic from spoke is routed into the tunnel, but is seems that the traffic is not received by the hub.
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