Tag Archives: network

MikroTik local link up / down on high traffic

One of our RouterBOARD routers – MikroTik RB750 (mipsbe with Atheros 7240 switch) running the version v6.35.2 (latest version) have been constantly crashing on high network load. One particularly interesting note is that it crashed on traffic that goes through the internal switch but not on other traffic. The log file shows the following pattern: …

Continue reading “MikroTik local link up / down on high traffic”

Mystic TCP/IP packet loss and MTU 1504 in Windows 7

We recently have observed some strange things in our local are network. Some Internet resources, mostly from Microsoft, failed to open in any web browser (IE, Firefox, Chrome, Opera, Telnet to port 80). As it happened on all computers, we thought that this is our ISP issue and wrote to support. ISP shortly responded that …

Continue reading “Mystic TCP/IP packet loss and MTU 1504 in Windows 7”