I worked at motel where we use a MikroTik RouterOS v5.24. I notice people who connect to the wifi get a ip address then when their lease expire after 12 hours it will take the user about 10-30 mins before they can connect again to the wifi. I checked the MikroTik Router log it keeps saying “DHCP deassigned” I have attached a screen shot. Is there way to make it so the customer doesn’t have to wait that long to reconnect. Or am I faced with another problem.
(Why I think it IP address problem is when they aren’t able to connect I type in a static IP address and it works just fine)
I found the problem was the dhcp server was not updating its lease expiration time. I set my lease time to 2 days. When the client renewed the lease in one day as per dhcp protocol, the MT dhcp server would tell the client “you are good for another two days”, but would expire that lease after one day. So the result is what I see in your screen capture. The dhcp server deassigns the lease just a minute or so before the client renews the lease again, and then it will be successful because the dhcp server actually issues another lease. The next renew will “fail” again. Every other renew will not work right.
If you think that may be your problem, I can help you troubleshoot it.