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    Excessive CPU usage in the Android App.

    Reolink Client & APP
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    • Brian Moore_160997445730508
      Brian Moore last edited by

      I was wondering if anyone has noticed high CPU usage in the Android app.

      I noticed that every time I used the app, my phone would get warm and the battery would drain. Using a terminal and the 'top' command, I saw that the netd process was maxing the CPU. Eventually I found that this happened whenever I opened the app and only stopped when I explicitly closed it (not just switching to another app or the home screen).

      Eventually I enabled logging in my router and I found that the Reolink app attempts to make connections to p2p#.reolink.com, where # represents a number. This was detected as a possible DNS Rebind attack by my router and was blocked. It seems that the Reolink app doesn't handle this failed connection properly and just spins out of control trying to make the connection over and over.

      Through further testing I found that simply putting the phone into airplane mode and opening the Reolink app will cause the same behavior. The app cannot make the connections, which causes the netd process to run out of control.

      I have reported all of this to Reolink and they have said that they are unable to reproduce this, but I've tested this on my tablet as well and found the same problem.

      Has anyone else encountered this?
      Does anyone else want to test this out and report back? Just put your phone in airplane mode, start Reolink, and use a monitoring tool to check the CPU usage.
      Screenshot_20190628-101537.png
      Screenshot_20190629-111324-2.png

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      • petr_519253011173565
        petr last edited by

        Hi,

        pretty old post, but, the issue is stil here.
        I recently bought some cameras. I'm still waiting for the parcel, delivery is planned tomorrow. OK, I downloaded the APP directly from Reolink website, installed it and ...
        Immediate connections attempt to home-cdn.reolink.us and apis.reolink.com via http proxy without permission. It's unacceptable for security products.
        Next - excessive DNS queries. My Android phone has no access to DNS server. It doesn't need DNS because of it's connected to private networks only. Couldn't get rid of the queries. Netd and Reolink app itself consumes 100% CPU.

        I'm sorry, Reolink, but I really don't wish to share private data 😞

        Solution: using MuntashirAkon AppManager disable trackers and unwanted activities in the app (root required)
        activities:

        • cloud update activity
        • share video activity
        • support centre activity
        • config cloud stream activity
        • login account activity
        • cloud update device activity
        • facebook activity
        • sign in hub activity
        • google API activity

        services:

        • app measurement job service
        • app measurement service
        • firebase instance id service
        • firebase messaging service

        receivers:

        • app measurement install referrer receiver
        • app measurement receiver

        providers:

        • facebook init provider
        • firebase init provider


        App looks working, no DNS queries. We'll see tomorrow when I'll get the cameras.

        Best
        Petr

        Reolink Fiona 1 Reply Last reply Reply Quote 0
        • Reolink Fiona
          Reolink Fiona Administrators @petr last edited by Reolink Fiona

          @petr_519253011173565
          Hi there, we always consider the security of our product.
          For network security, you can set up the DDNS and Network ports on your PC Client.
          You can find the setting on our PC Client. Network>>Advanced

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