I wasn't able to connect to an IPsec VPN through FortiClient VPN (7.0.2.0090 free) when updated to Windows 11 (build 22000), SSL VPNs were working fine. When I downgraded to Windows 10 (21h2 build 19044.1415) the IPsec VPN started working again.
In this log the loc_port and rem_port are different (4500, in the other log it's 500), also the deviceip is my external IP, not a local IP (that doesn't look like an IP that my machine would be using).
I don't know if that's causing the problem, but it's all I can find.
Fortinet Answer: "...there will be no fix from the forticlient side as this is not a forticlient issue.This issue is with Realtek drivers and a drivers update might fix the issue.To avoid this issue, try not to use the latest Realtek driver, it has the bug, just use the driver that comes with Windows and that should work."
There is a new Driver from Realtek 2023/02/24 version 124.011 , 1125.011 , 1166.011 , 1168.011 and it's not fixed.
I tried to contact Realtek about it... no answer...So good luck to reach Realtek about it!
Just ran in to this problem with a brand new intel AX211 so this is more than just a realtek issue.
Going to have to try setting up a windows native ipsec policy on our 301E to see if ruling out forticlient makes a difference. 2 Lenovo laptops next to each other on the same network. same forticlient version 7.0.8. intel ac9560 connects with no issue. ax211 will not.
I am starting to move my userbase to autopilot and I definitely need the vpn to be dependable and work.
oh, and this is probably the 5th time in the past month or two that I have run in to this. This is just the first time that installing the manufacturers drivers over oem hasn't worked.
We could solve that problem with the Realtek USB GbE Family Controller by Downgrading to the Win10 driver 10.54.
But now I have the same problem with Realtek PCIe GbE Family Controller. I tried the 10.54 driver, but it did not solve the problem. I also tried FortiClient 7.0.2, 7.0.7 and 7.0.9 -> always the same problem. Over WiFi it works perfectly.
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