I have a weird issue here, where I'm not sure if the fault lies with the Intel Wireless driver or AnyConnect or Windows 10 or something else.
Client has a public IPv6 address and a private IPv4 address on the Wi-Fi adapter. CPE has a public IPv4 address on the outside.
ASA is configured for IPv4 and IPv6 public address. AnyConnect is configured for default, meaning prefer IPv4 for the connection. ASA offers only an IPv4 address from the pool to the client, no IPv6.
The client can successfully connect, but traffic doesn't seem to go through the tunnel. Sometimes DNS goes through, but nothing else. AnyConnect is the latest 4.9 version, or in some cases one or two releases older. If the client disconnects and reconnects a few times, the traffic often starts to flow. After a reboot of the laptop it also often seems to work on the first try (but not always).
I seem to be able to workaround it by updating to the latest Intel Wireless driver (from Dell), which is 21.110.x by the tested devices. At least I couldn't yet successfully recreate it after the upgrade, but I also don't have a connection here where I could test this reliably.
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