starting hostapd fails — ACS: Unable to collect survey data












4















I'm on a jessie on an embedded device, trying to set the WLAN into AP mode. When I try



# /usr/sbin/hostapd -P /run/hostapd.wlan0.pid /etc/hostapd/hostapd.conf
Configuration file: /etc/hostapd/hostapd.conf
ACS: Automatic channel selection started, this may take a bit
wlan0: interface state UNINITIALIZED->ACS
wlan0: ACS-STARTED
ACS: Unable to collect survey data
ACS: All study options have failed
Interface initialization failed
wlan0: interface state ACS->DISABLED
wlan0: AP-DISABLED
ACS: Possibly channel configuration is invalid, please report this along with your config file.
ACS: Failed to start
wlan0: AP-DISABLED
hostapd_free_hapd_data: Interface wlan0 wasn't started
wlan0: interface state DISABLED->DISABLED
hostapd_free_hapd_data: Interface wlan0 wasn't started


My config file is:



# cat /etc/hostapd/hostapd.conf 
interface=wlan0
driver=nl80211
channel=acs
hw_mode=g
wmm_enabled=0
max_num_sta=1
ssid=foobarfoo


The error message can be found in a web search, but the solutions don't fit for me: I don't use ǹetwork-managerand thenl80211driver works on a different device (handmade buildroot system) andhostapdversion isv2.3(not the buggyv2.1`)



Any idea how to narrow the problem further?



Edit: With channel=1 it runs, so it's definately an acs problem, but what can I try to find out the root of the problem?










share|improve this question

























  • Well, I (also had to?) set channel to something specific before it started to work. But then, I'd had problems with the driver (rtl...), dhcpd.conf errors etc. I found some hints reading /var/log/syslog and running dmesg. Also, sometimes it's good to enjoy it when it finally works, and not ask why ;)

    – Tomasz Gandor
    Sep 3 '17 at 19:51
















4















I'm on a jessie on an embedded device, trying to set the WLAN into AP mode. When I try



# /usr/sbin/hostapd -P /run/hostapd.wlan0.pid /etc/hostapd/hostapd.conf
Configuration file: /etc/hostapd/hostapd.conf
ACS: Automatic channel selection started, this may take a bit
wlan0: interface state UNINITIALIZED->ACS
wlan0: ACS-STARTED
ACS: Unable to collect survey data
ACS: All study options have failed
Interface initialization failed
wlan0: interface state ACS->DISABLED
wlan0: AP-DISABLED
ACS: Possibly channel configuration is invalid, please report this along with your config file.
ACS: Failed to start
wlan0: AP-DISABLED
hostapd_free_hapd_data: Interface wlan0 wasn't started
wlan0: interface state DISABLED->DISABLED
hostapd_free_hapd_data: Interface wlan0 wasn't started


My config file is:



# cat /etc/hostapd/hostapd.conf 
interface=wlan0
driver=nl80211
channel=acs
hw_mode=g
wmm_enabled=0
max_num_sta=1
ssid=foobarfoo


The error message can be found in a web search, but the solutions don't fit for me: I don't use ǹetwork-managerand thenl80211driver works on a different device (handmade buildroot system) andhostapdversion isv2.3(not the buggyv2.1`)



Any idea how to narrow the problem further?



Edit: With channel=1 it runs, so it's definately an acs problem, but what can I try to find out the root of the problem?










share|improve this question

























  • Well, I (also had to?) set channel to something specific before it started to work. But then, I'd had problems with the driver (rtl...), dhcpd.conf errors etc. I found some hints reading /var/log/syslog and running dmesg. Also, sometimes it's good to enjoy it when it finally works, and not ask why ;)

    – Tomasz Gandor
    Sep 3 '17 at 19:51














4












4








4


2






I'm on a jessie on an embedded device, trying to set the WLAN into AP mode. When I try



# /usr/sbin/hostapd -P /run/hostapd.wlan0.pid /etc/hostapd/hostapd.conf
Configuration file: /etc/hostapd/hostapd.conf
ACS: Automatic channel selection started, this may take a bit
wlan0: interface state UNINITIALIZED->ACS
wlan0: ACS-STARTED
ACS: Unable to collect survey data
ACS: All study options have failed
Interface initialization failed
wlan0: interface state ACS->DISABLED
wlan0: AP-DISABLED
ACS: Possibly channel configuration is invalid, please report this along with your config file.
ACS: Failed to start
wlan0: AP-DISABLED
hostapd_free_hapd_data: Interface wlan0 wasn't started
wlan0: interface state DISABLED->DISABLED
hostapd_free_hapd_data: Interface wlan0 wasn't started


My config file is:



# cat /etc/hostapd/hostapd.conf 
interface=wlan0
driver=nl80211
channel=acs
hw_mode=g
wmm_enabled=0
max_num_sta=1
ssid=foobarfoo


The error message can be found in a web search, but the solutions don't fit for me: I don't use ǹetwork-managerand thenl80211driver works on a different device (handmade buildroot system) andhostapdversion isv2.3(not the buggyv2.1`)



Any idea how to narrow the problem further?



Edit: With channel=1 it runs, so it's definately an acs problem, but what can I try to find out the root of the problem?










share|improve this question
















I'm on a jessie on an embedded device, trying to set the WLAN into AP mode. When I try



# /usr/sbin/hostapd -P /run/hostapd.wlan0.pid /etc/hostapd/hostapd.conf
Configuration file: /etc/hostapd/hostapd.conf
ACS: Automatic channel selection started, this may take a bit
wlan0: interface state UNINITIALIZED->ACS
wlan0: ACS-STARTED
ACS: Unable to collect survey data
ACS: All study options have failed
Interface initialization failed
wlan0: interface state ACS->DISABLED
wlan0: AP-DISABLED
ACS: Possibly channel configuration is invalid, please report this along with your config file.
ACS: Failed to start
wlan0: AP-DISABLED
hostapd_free_hapd_data: Interface wlan0 wasn't started
wlan0: interface state DISABLED->DISABLED
hostapd_free_hapd_data: Interface wlan0 wasn't started


My config file is:



# cat /etc/hostapd/hostapd.conf 
interface=wlan0
driver=nl80211
channel=acs
hw_mode=g
wmm_enabled=0
max_num_sta=1
ssid=foobarfoo


The error message can be found in a web search, but the solutions don't fit for me: I don't use ǹetwork-managerand thenl80211driver works on a different device (handmade buildroot system) andhostapdversion isv2.3(not the buggyv2.1`)



Any idea how to narrow the problem further?



Edit: With channel=1 it runs, so it's definately an acs problem, but what can I try to find out the root of the problem?







debian wlan hostapd access-point






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Mar 10 '17 at 9:12







Philippos

















asked Mar 9 '17 at 17:34









PhilipposPhilippos

6,02711547




6,02711547













  • Well, I (also had to?) set channel to something specific before it started to work. But then, I'd had problems with the driver (rtl...), dhcpd.conf errors etc. I found some hints reading /var/log/syslog and running dmesg. Also, sometimes it's good to enjoy it when it finally works, and not ask why ;)

    – Tomasz Gandor
    Sep 3 '17 at 19:51



















  • Well, I (also had to?) set channel to something specific before it started to work. But then, I'd had problems with the driver (rtl...), dhcpd.conf errors etc. I found some hints reading /var/log/syslog and running dmesg. Also, sometimes it's good to enjoy it when it finally works, and not ask why ;)

    – Tomasz Gandor
    Sep 3 '17 at 19:51

















Well, I (also had to?) set channel to something specific before it started to work. But then, I'd had problems with the driver (rtl...), dhcpd.conf errors etc. I found some hints reading /var/log/syslog and running dmesg. Also, sometimes it's good to enjoy it when it finally works, and not ask why ;)

– Tomasz Gandor
Sep 3 '17 at 19:51





Well, I (also had to?) set channel to something specific before it started to work. But then, I'd had problems with the driver (rtl...), dhcpd.conf errors etc. I found some hints reading /var/log/syslog and running dmesg. Also, sometimes it's good to enjoy it when it finally works, and not ask why ;)

– Tomasz Gandor
Sep 3 '17 at 19:51










1 Answer
1






active

oldest

votes


















0














Try "channel=0" in your config






share|improve this answer























    Your Answer








    StackExchange.ready(function() {
    var channelOptions = {
    tags: "".split(" "),
    id: "106"
    };
    initTagRenderer("".split(" "), "".split(" "), channelOptions);

    StackExchange.using("externalEditor", function() {
    // Have to fire editor after snippets, if snippets enabled
    if (StackExchange.settings.snippets.snippetsEnabled) {
    StackExchange.using("snippets", function() {
    createEditor();
    });
    }
    else {
    createEditor();
    }
    });

    function createEditor() {
    StackExchange.prepareEditor({
    heartbeatType: 'answer',
    autoActivateHeartbeat: false,
    convertImagesToLinks: false,
    noModals: true,
    showLowRepImageUploadWarning: true,
    reputationToPostImages: null,
    bindNavPrevention: true,
    postfix: "",
    imageUploader: {
    brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
    contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
    allowUrls: true
    },
    onDemand: true,
    discardSelector: ".discard-answer"
    ,immediatelyShowMarkdownHelp:true
    });


    }
    });














    draft saved

    draft discarded


















    StackExchange.ready(
    function () {
    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f350333%2fstarting-hostapd-fails-acs-unable-to-collect-survey-data%23new-answer', 'question_page');
    }
    );

    Post as a guest















    Required, but never shown

























    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    0














    Try "channel=0" in your config






    share|improve this answer




























      0














      Try "channel=0" in your config






      share|improve this answer


























        0












        0








        0







        Try "channel=0" in your config






        share|improve this answer













        Try "channel=0" in your config







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Sep 7 '18 at 0:21









        Zach LakeZach Lake

        1




        1






























            draft saved

            draft discarded




















































            Thanks for contributing an answer to Unix & Linux Stack Exchange!


            • Please be sure to answer the question. Provide details and share your research!

            But avoid



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            To learn more, see our tips on writing great answers.




            draft saved


            draft discarded














            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f350333%2fstarting-hostapd-fails-acs-unable-to-collect-survey-data%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown





















































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown

































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown







            Popular posts from this blog

            How to reconfigure Docker Trusted Registry 2.x.x to use CEPH FS mount instead of NFS and other traditional...

            is 'sed' thread safe

            How to make a Squid Proxy server?