Hi, Whenever I enter a search query or URL in Safari, my computer completely disconnects from the internet for 5-15 seconds. I also notice this behavior whenever I open the Notification panel, and it tries to refresh weather, stocks, etc. The wifi stays on and appears to remain connected, but all of my other open applications simultaneously lose their internet connection. For example, here's what happens when I ping google.com in the background, and then open the Notification Center panel: 64 bytes from 220.127.116.11: icmp_seq=38 ttl=55 time=36.503 ms 64 bytes from 18.104.22.168: icmp_seq=39 ttl=55 time=35.648 ms 64 bytes from 22.214.171.124: icmp_seq=40 ttl=55 time=40.192 ms 64 bytes from 126.96.36.199: icmp_seq=41 ttl=55 time=36.268 ms 64 bytes from 188.8.131.52: icmp_seq=42 ttl=55 time=35.133 ms <- Open Notification Center here Request timeout for icmp_seq 43 <- Lose connection Request timeout for icmp_seq 44 Request timeout for icmp_seq 45 Request timeout for icmp_seq 46 Request timeout for icmp_seq 47 Request timeout for icmp_seq 48 Request timeout for icmp_seq 49 64 bytes from 184.108.40.206: icmp_seq=45 ttl=55 time=5618.431 ms <- Connection resumes here 64 bytes from 220.127.116.11: icmp_seq=50 ttl=55 time=600.286 ms 64 bytes from 18.104.22.168: icmp_seq=52 ttl=55 time=660.670 ms 64 bytes from 22.214.171.124: icmp_seq=53 ttl=55 time=342.075 ms 64 bytes from 126.96.36.199: icmp_seq=54 ttl=55 time=34.993 ms This issue does not occur when I enter a query in Chrome or Firefox, and it does not occur when I use some other system applications, like iTunes. I've been experiencing this issue since El Capitan, and I have tried all of the solutions here without any luck. Rebooting my machine temporarily solves the problem, but then it always returns after several hours. I'm currently using MacOS Sierra 10.12.5.