[{"data":1,"prerenderedAt":28},["ShallowReactive",2],{"page-content:en:guides\u002Fhow-to-fix-packet-loss":3},{"home":4,"toolExplainer":4,"guide":5,"guideTitles":27,"legal":4},null,{"title":6,"description":7,"h1":8,"answer":9,"sections":10,"faqs":20},"How to Fix Packet Loss — SpeedTestLab","Packet loss is dropped IP packets. Browsers cannot run a full ICMP loss test. Start with Ethernet, Wi‑Fi retries, and ISP diagnostics.","How to Fix Packet Loss","Fix packet loss by isolating the hop that drops traffic: local Wi‑Fi, the LAN, or the ISP path. A browser HTTP timeout is not the same as ICMP loss, but failed probes still mean you should check stability.",[11,14,17],{"h":12,"p":13},"Confirm it is not Wi‑Fi retries","Move to Ethernet. If loss disappears, repair the radio: channel, width, distance, and interfering APs.",{"h":15,"p":16},"Rule out the device","Bad cables, overloaded VPN, and failing NICs also drop traffic. Try another device.",{"h":18,"p":19},"Escalate with evidence","ISPs need wired tests at several hours. Game overlays that show “loss” may be measuring a specific UDP path, not your whole WAN.",[21,24],{"q":22,"a":23},"Can this website send ICMP pings?","No. Browsers are not allowed to send arbitrary ICMP. We can time HTTP probes only.",{"q":25,"a":26},"Does 0% in a game mean the WAN is perfect?","No. That overlay is one server path.",[],1793775154415]