IPSec issues. (Microsoft Domain Isolation)

Question

We have Microsoft Domain Isolation set-up on our network. Lately, my computer doesn't allow new inbound IPSec protected connections from other computers, however it will allow them outbound.

For example:

My computer and the other computer are part of the same domain and use the same group policy and firewall settings.

Other computer IPSec connection to My computer  - no connection

My computer to other computer - IPSec connection is established.

Once IPSec connection is established

Other computer connection to My computer - connection is established until my computer gets restarted.

Unportected (by IPSec) inbound connections, get established without issues.

The rest of the computers in the network do not exibit these issues.

I tried the following troubleshooting steps:

I cleared SA by using:

netsh ipsec dynamic delete sa (or delete all)

Full reset of the Windows Firewall.

Unjoin-rejoin my computer to the domain.

None of the steps have worked.

Thank you.

Answer 1

Update: There seems to be a problem with the latest Windows 10 PRO 1909 with the latest updates. 2 other upgraded workstations exibit the same issues. The previous build used was 1903, and 1909 is a minor upgrade.