Mobile devices on hotspot constantly having to relogin

RouterOS General
1

To start off I have searched through the forums and gone through the wiki and tried multiple fixes. The issue I have is with the hotspot we have it set so that users must authenticate every 6 hours (Yes I know its a stupidly short time. Client wants the landing pages seen every 6 hours) The last few months I have had a uptick of complaints from people where they are constantly having to login every 5 min or even every hour or so. Basically they are not getting to the 6 hour mark. Here is my basic hotspot setup right now.

/ip hotspot profile
add hotspot-address=192.168.100.1 login-by=cookie,http-chap,http-pap,mac-cookie \
    name=hsprof1 use-radius=yes
/ip hotspot
add address-pool=Pool1 disabled=no interface=Guest name=\
    11608 profile=hsprof1
/ip hotspot user profile
set [ find default=yes ] address-pool=Pool1 mac-cookie-timeout=6h \
    session-timeout=6h shared-users=600 transparent-proxy=yes
/ip hotspot walled-garden
add comment="place hotspot rules here" disabled=yes
/ip hotspot walled-garden ip
add action=accept disabled=no dst-host=login.a2dhotels.net

My best guest so far is mobile devices keep going into low power / sleep mode. I was wondering if there is something else I might be missing to resolve this issue.

2

And when they wake up, they connect to hotspot using different anonymized MAC address.

You can verify this theory by inspecting the registration table … any MAC address with second-to-most-significant hex digit having value of 2, 6, A or E is locally administered MAC address which are free to “invent”. Any many modern mobile phones (iOS, Android) do that by default. There was a discussion about that already: http://forum.mikrotik.com/t/ios14-use-private-address-random-mac-default-and-time-restrictions/144484/25

3

I have considered that and I am aware of it. It actually caused issues for devices we have bypassed before IOS14.

We are seeing some devices that do not do this though having to relogin. I am going to keep looking more into it and see if I can reproduce it more consistently so I can packet capture what is happening to figure it out. Just wondering if someone else had ran into problem and solved already