We have a several Mikrotik boxes out in the field, and recently we have noticed a few issues that some people are having with the DHCP sever on the box. They are currently running 4.5 as a hotspot, and every so often certain guests are no longer able to receive a DHCP address according to the trouble tickets. What we see in the logs is that 2 or 3 people are constantly assigned a DHCP address, and very soon after, are de-assigned the address and signed it again. This all happens in the matter of seconds of each other and quickly fills up the log of the Mikrotik.
Rebooting the box seems to fix this issue, but a couple of days or a week or so later, the issue comes back. It also appears to be an isolated issue, since as far as we can tell this only affects one or two boxes at once, and seems to be the same locations.
Has anyone else ever come across this issue or a similar one and found a solution? Is there a level of logging that I need to be looking at? Here is the DHCP configuration of the box that had the issue last night:
/ip dhcp-server
add address-pool=hs-pool-6 authoritative=after-2sec-delay bootp-support=\
static disabled=no interface="Guest Network" lease-time=1d name=dhcp1
/ip dhcp-server config
set store-leases-disk=5m
/ip dhcp-server lease
add address=192.168.50.47 client-id=1:0:1a:a0:71:8a:26 comment="" disabled=no \
mac-address=00:1A:A0:71:8A:26 server=dhcp1
/ip dhcp-server network
add address=192.168.50.0/23 comment="hotspot network" gateway=192.168.50.1