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    Introducing Netgate Nexus: Multi-Instance Management at Your Fingertips.

    wifi drops in and out

    Scheduled Pinned Locked Moved Wireless
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    • J Offline
      johnwjr
      last edited by

      We have a Netgete pfSense firewall and a UniFi Network switch. when we first installed it everything was working fine, suddenly our wifi routers have been dropping out and ocassionally the internet has been going down. Any Ideas that may be causing this and soultions?

      Thank you for your time.

      KOMK 1 Reply Last reply Reply Quote 0
      • KOMK Offline
        KOM @johnwjr
        last edited by

        @johnwjr Nowhere near enough information provided to even guess. Start by looking at logs of all affected devices. What does 'dropping out' mean, specifically? They totally disappear? Can't resolve hosts? Any relevant error messages? I know it's tedious to include required info but you're not going to get much help without it.

        J 1 Reply Last reply Reply Quote 0
        • J Offline
          johnwjr @KOM
          last edited by

          @KOMI am still learning things. First let me give you our basic layout. The internet comes in and feeds the pfSense, then to the Ubiquiti switch, connected to the switch are 6 Wi-Fi routers and various computers.

          Various Wi-Fi routers will lose internet (Wi-Fi signal stays, but no internet) then it returns, no set pattern. Occasionally ethernet on various computers will also drop then come back. The computer connected to the switch in the same room does not see this loss of internet connection.

          We have ESET endpoint as our antivirus and some computers will get a pop up occasionally saying "duplicate ip address noted"

          I have checked the switch and do not see any duplicates.

          KOMK stephenw10S 2 Replies Last reply Reply Quote 0
          • KOMK Offline
            KOM @johnwjr
            last edited by

            @johnwjr said in wifi drops in and out:

            duplicate ip address noted

            This is important. Check Diagnostics - ARP Table for dupes. When it goes out, can you ping 8.8.8.8? Can you resolve hostnames eg 'nslookup www.blarf.com' (it's important to use a domain you haven't recently resolved so it's not pulled from dns cache.) Duplicate IPs are a problem but they typically don't cause major issues unless the dupe is pfsense LAN or some other critical network service.

            When the problem occurs, it's global and all connected devices are affected? Or is it limited to clients on one specific wifi AP?

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            • stephenw10S Offline
              stephenw10 Netgate Administrator @johnwjr
              last edited by

              @johnwjr said in wifi drops in and out:

              The internet comes in and feeds the pfSense, then to the Ubiquiti switch, connected to the switch are 6 Wi-Fi routers

              Do you actually mean WiFi Access Points there? Like UniFi devices perhaps?

              But, yes, an IP conflict with something on the network could certainly cause a problem like this.

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