Hello everyone,

I have a Mikrotik that when copying large files does what is showed on the attachment.

I updated RouterOS and firmware to 6.42.3

And on the same Mikrotik sometimes just the WAN port (Where I connected the ISP) does the same. Interface up and down several times.

What can I do?

Regards

New patch cord cat.6?

What model are you using?

Have a read through this viewtopic.php?f=3&t=128762 may be related if you are using similar hardware.

Look for errors on ether/sfp interface. If they running, change smthng on your physical connection.