High CPU usage by F-Secure Client Security 13.x Firewall Daemon service (fsdfwd.exe) when Firewall rules are enabled - F-Secure Community
<main> <article class="userContent"> <h3 data-version="5" data-article="000018452">Issue:</h3> <p>I notice there is a high CPU usage by F-Secure Firewall Daemon service (fsdfwd.exe) when I enable firewall rules. When the firewall rules are disabled, the CPU usage goes back to normal. How can I fix this issue?</p> <h3>Resolution:</h3> <p>The root cause was because of too small DNS cache in F-Secure Firewall Daemon services and was fixed by increasing it. We have prepared a hotfix to replace the problematic firewall binaries. Proceed to contact <a rel="nofollow" href="https://www.f-secure.com/en/web/business_global/support/support-request#productGroup=For%20Business">F-Secure Support</a> to obtain the hotfix.</p> <p>Article no: 000018452</p> </article> </main>
