i have 1 windows box that looses communication to the internet every 4 or 5 hours. This started happening after i replaced a cisco 1900 with mikrotik router OS 2.9.42.

after communication is lost (cannot collect mail or RDP in) i can ping the IP of the box but cannot access services from the internet. If i remote into another box on the same lan i can remote in from the box, telnet ,rdp etc.. Now if i clear the ARP cache on the windows box all is well for anothe few hours.

If i reboot the router my windows box looses comminication from the internet until i clear the ARP cache.

The router has the most basic config no FW rules nat or anything else.

This only happens on 1 of 3 windows boxes


Thank you

I have same probs on 2 rb133c . For reconnect , i do a disable lan and enable .


Any suggestions ?


p.s ROS 2.9.49 but also with 2.9.38