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Issues with hotel and airport WiFi

J_B

Does anyone else have issues with users connecting to guest WiFi networks, seems to mainly effect Mac users. When we set the users machine to a profile that has no Threat Protection features enabled the connection works, so it is not Web Control settings.

This is quite a tricky one to recreate and test on the bench so was wondering if anyone else has experienced this and has a solution short of turning off all Threat Protection features. 



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  • FormerMember
    0 FormerMember

    Hi,

    Need specific versions of the OS and Endpoint install to answer this.

  • 0 in reply to FormerMember

    Hi Richard, it will be agent 10.0.4 and most likely the OS will be Big Sur, We're still trying to gather more information but it means sending a technician to one of the sites with WiFi where its not working.

    The only thing I can think is that Sophos is seeing the redirect to the captive portal as something malicious?  But nothing shows in the events page. 

  • FormerMember
    0 FormerMember in reply to J_B

    Is there any vpn products installed and active on the system?

  • 0 in reply to FormerMember

    No, they are fairly generic MacOS builds with just Chrome and Office added to them. From what I understand, this happens in both Safari and Chrome. 

  • FormerMember
    0 FormerMember in reply to J_B

    okay, I think this will probably need more indepth investigation than I can do over the forum. I would suggest you open a support case and gather the following:

    1) a SDU from one or more affected machines

    2) a TCPDump while the issue is happening

    3) a TCPDump while the issue isn't happening (turn off the parts product if needed)

    I think the issue is with the WIFI having a landing page that is getting blocked or not presented - probably because it has an untrusted cert - but I can't be sure without the above.

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  • FormerMember
    0 FormerMember in reply to J_B

    okay, I think this will probably need more indepth investigation than I can do over the forum. I would suggest you open a support case and gather the following:

    1) a SDU from one or more affected machines

    2) a TCPDump while the issue is happening

    3) a TCPDump while the issue isn't happening (turn off the parts product if needed)

    I think the issue is with the WIFI having a landing page that is getting blocked or not presented - probably because it has an untrusted cert - but I can't be sure without the above.

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