If WebSockets is enabled and a server is offline any servers prior to that server will not complete.

[KuJoe]

On chk2.net I have 38 servers configured and WebSockets enabled. If server 25 (Seattle, WA, USA (02)) is offline (like it is now) servers 1-24 do not complete while servers 26-38 do. If I kill the WebSockets command (php artisan lowendping:websocket) then 1-24 will complete normally and server 25 will show "Failed to connect." but while the WebSockets are running it does not appear to timeout. If you want to test this I can enable WebSockets on chk2.net again so you can see the problem in action.