WAN excessive or late collision link duplex mismatch

RouterOS Beginner Basics
1

Log Warning: wan excessive or late collision link duplex mismatch.

Anyone can helpme about this?? :confused:
I use a RB750Gr2, v6.30.2.
I have a brigde between ports 3 and 5, port 3 are my laptop and port 5 is a Linksys

Ah, and this guy try to hack the RB, puff loser :laughing:
aug/24/2016 17:33:26 system,error,critical login failure for user root from 61.178.42.242 via ssh
aug/24/2016 17:33:31 system,error,critical login failure for user root from 61.178.42.242 via ssh
aug/24/2016 17:33:37 system,error,critical login failure for user gusr from 61.178.42.242 via ssh
aug/24/2016 17:33:44 system,error,critical login failure for user exyreuts from 61.178.42.242 via ssh

Thanks!!

2

Hi, Try this.

Make sure all your ports is connecting at the same speed and connecting at full duplex.

Also, go to ip → services and set the allowed ips for your services.

Things like ssh and telnet shouldn’t be open to the internet