LAN clients connnection drops occasionaly

RouterOS General
1

I have strange, time to time connection drops among all my LAN(WLAN) clients, from a couple of seconds to a couple of minutes. For that time when a client loses access, it cut off the internet and internal resources, can’t connect to another client, hub, server, or even log to mikrotik device through winbox.
Only 2 instances are being logged when such problem occurs - 99% of the time it’s

  • “DHCP offering lease without success”
    and today problem logged as “Detect conflict by ARP response for IP from M:A:C”
    Since I have a very simplified, “home” network, without VLAN, VPN, 2 or more networks or tons of DHCP clients - I’m really curious about what causes such conflict, and especially - why does my WLAN clients have this DHCP problem? Where should I start?
    Clients are mostly Mac (iOS) + 2x WinPC. Resetting/rebooting/restoring the router doesn’t help much, so it’s likely configuration issue.
2

The DHCP fail to offer lease is probably due to the same reason you can’t access any device, so start there.
It sounds like a possible broadcast stor or some network device causing jabber on the network, or a faulty switch

3

Broadcast storm, You mean? Hm, my router cpu should hit 100% then, when that happens, right?

Device jabber - how do I detect it?

Switch is CSS326.

4

Check the log?

5

Maybe the connection method is not right, can I use Ethernet to connect?