ESP8266 Community Forum

- Tue Apr 11, 2017 5:00 pm #64846 90% of the time every thing works great, but 10% of the time I will connect to my AP and then attempt to navigate to 192.168.4.1. When I do this, the page won't be served and the browser states the address is unreachable. I then try connecting to the exact same AP from another device, without resetting the ESP8266, and am able to connect just fine.

I've tried multiple browsers, as well as disconnecting and reconnecting to the AP, and neither seem to help. This will happen one day, and then the next using the same code, it will connect again and load the page just fine. Any ideas?

Code: Select all-- handle data receive from AP client
local function handleReceive(sock, data)
    -- buffer request
    clients[sock].rcvBuf = clients[sock].rcvBuf .. data
    -- check for at least one \r\n\r\n
    local k, l = string.find(clients[sock].rcvBuf, "\r\n\r\n")

    if k then
        -- parse resource
        local resource = util.parseResource(clients[sock].rcvBuf)

        if not resource then
            sock:on("sent", function(s) closeClient(s) end)
            sock:send("HTTP/1.0 404 Not Found\r\nCache-Control: no-store\r\nContent-Type: text/html\r\n\r\n<a href='"..wifi.ap.getip().."'>")
        end
        if resource == "" then resource = "index.htm" end

        -- begin sending resource if available
        if resource == "ajaxReq" then
            handleAjax(sock)
        else
            clients[sock].file = file.open(resource)
            if not clients[sock].file then
                sock:on("sent", function(s) closeClient(s) end)
                sock:send("HTTP/1.0 404 Not Found\r\nCache-Control: no-store\r\nContent-Type: text/html\r\n\r\n<a href='"..wifi.ap.getip().."'>")
                return
            end
            clients[sock].readStarted = false
            sock:on("sent", function(s) sendFile(s) end)
            sock:send("HTTP/1.0 200 OK\r\nCache-Control: no-store\r\nContent-Type: text/html\r\n\r\n")
        end
    end
end


-- handle new client connection
local function handleConn(newSock)
    clients[newSock] = {}
    clients[newSock].rcvBuf= ""
    newSock:on("disconnection", function(sock, err)
        print('client disconn')
        closeClient(sock)
    end)
    newSock:on("receive", handleReceive)
end

-- setup server and enter AP mode
function createSetupServer()
    local srv=net.createServer(net.TCP)
    srv:listen(80, handleConn)

    -- configure wifi
    wifi.eventmon.register(wifi.eventmon.AP_STADISCONNECTED, function() print("Dropped AP client") end)
    wifi.setmode(wifi.STATIONAP, false);
    wifi.ap.config({ssid="Sensive".. tostring(node.chipid()), pwd="12345678", auth=wifi.WPA2_PSK, save=false, beacon=100})
    return srv
end