snarkjazzo Posted December 10, 2019 Share Posted December 10, 2019 Hi everybody, I have an issue since upgrading to Catalina on my E5550. After 20-30 minutes of using the laptop, mDNSResponder's CPU usage goes up to 90-100% of CPU utilization and programs start crashing until I kill the process and it goes back to 1%. I tried to disable Bonjour advertisement using this: https://derflounder.wordpress.com/2016/08/22/disabling-bonjour-advertisement-on-os-x-el-capitan-and-later/ but this did not have any effect. I also clean installed 10.15.1 and this also did not help. I was wondering if anyone else was having this issue/if there are any potential fixes. Thanks, snarkjazzo Link to comment Share on other sites More sharing options...
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