i am using mikrotik Rb750 Router Board i am facing a strange problem :
i got 3 link of 4MB
Wan1 4mb
Wan2 4mb
Wan3 4mb
problem is that automatically wan2 and wan3 goes down but when i check them they were working fine so when i restart the routerboard it was stuck and whole 5 lights were on,
i updated the routerboard last day but i am still facing this issue urgent help needed.
Can you check the capacitors on board?
sorry i am not that technical person so please guide me
Look at picture the 3 left capacitors. They blew up.. The right capacitor it’s ok.
https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcRhh84_ro3f2QSwYn4bF7wQio7KLEfUDcjtC-rZ3kVmwHmyOvWP
Try to open the RB750 and check them.
now those ports are working fine whats the issue from your point of view
If the capacitors are blew up, will be a mess. I had a similar problem with a RB433AH (sometimes the ether2 was dissapear or I can’t connect through the ether1).
now ports were working fine even at that time i check cable test and result was ok but after some times i unplug the router and replug the power then it is working fine thats the strange issue.
Did you have any other routerboard to check the power supply?
no only one router board and it is working from last 1 year with same power supply
Well, go to an electronical guy to open the routerboard to check the capacitors and to check also the power supply.
he said its normal no issue in it as well i change the power supply for the routerboard whenever the port stuck i found this new thing that wan router ip conflict msg came
but its not possible because
WAN2 and Wan3 enternet port directly connected with RB750 ports not with any other switch