I HAVE BEEN USING MIKROTIK THERE ABOUT DECEMBER 2006. IN THE PAST TWO WEEKS I HAVE BEEN ENCOUNTERING AN USUAL PROBLEM. I HAVE 3 NETWORK CARDS IN MY PC WHERE THE OS IS INSTALLED. ONE FOR WAN, LAN AND WIRELESS CLIENTS.
THE PROBLEM IS THAT WHILE THE MY CAFE IS BEING USED. SUDDENLY THE USER CANNOT OPEN WEBPAGES. ON TROUBLE SHOOTING I DISCOVERED ON MY MODEM THAT THE TRAFFICK THAT IS SUPPOSE TO BE GOING OUT IS NOW THE INCOMING TRAFFICK. THE SENT DATA IS NOW THE RECEIVE DATA SO THE CONFLICT AFFECTS ACCESS BUT ON DISCONNECTING THE LAN.IT REGULARISES ITSELF...

Hi

Sounds like you might have a virus on your LAN or someone is hacking your system - this is just a guess!

You can try and using the TORCH tool in RouterOS to find your problem