hello all , i have problems with connecting routerboard to my computer.the routerboard is completly configured by professionals and i can connect to internet.but sometimes the link of my routerboard goes down and up like the picture below and when i ping my routerboard 192.168.1.1 , it gives me timed out when the link goes up and down and my local area connection status changes into "The network cable is Unplugged" and i cant even access to my router setting by winbox of webconfig.i have done the jobs below :
1.checking cables between router and POE and POE to lan pc.
2.i have checked the POE and changed it but it didnt fix.
3.checked the POE adaptor and it was ok.
can anyone help me please?
my router is in the bridge mode.
see the first picture, the link is going down for about 18 mins (i didnt do anything with cables).and then it automatically went up !!!
Routerboard : SXT 5Hnd mikrotik (Routeros version 5.25)