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Macintosh News => Apple News => Topic started by: HCK on December 05, 2025, 04:05:05 pm



Title: mDNSResponder high data usage in MacOS
Post by: HCK on December 05, 2025, 04:05:05 pm
mDNSResponder high data usage in MacOS

Mac users sometimes notice a process named mDNSResponder consuming a lot of bandwidth and congesting Wi-Fi. Here’s what this daemon does, why it can flood the network, and how to diagnose and fix mDNSResponder high data usage on macOS.
Source: mDNSResponder high data usage in MacOS (https://macsecurity.net/view/664-mdnsresponder-high-data-usage-mac)