Assistance Needed ASAP

RouterOS Beginner Basics
1

Hello. I’m experiencing a link flapping issue with my MikroTik Cloud Router (CCR2116-12G-4S+). I have the ISP link connected to ether3. The setup is such that the MikroTik is connected to a switch that belongs to the ISP, which in turn is connected to the ISP’s router. As a result, I’m not receiving the uplink directly from the ISP router.

I’ve tried replacing the LAN cable (for the ISP uplink) multiple times, but I continue to see the link flapping with messages like “Link OK,” “Unknown,” and “No cable detected.” The strange thing is that I should have an immediate Internet connection, since the cable is directly attached to the ISP’s switch. However, when I attempt to ping the gateway, I get “No route to host” or “Timeout” errors.
Also, I’ve tried all the ports on the router, but the flapping issue persists. Additionally, whenever I connect another device to the router on any port, the router goes down, and all the links start flapping.
and, I’ve already reported this issue to the ISP, but I wanted to check if anyone here has encountered a similar problem before…

Any help would be greatly appreciated!!!

CCR2116-12G-4S+ Link Flapping
2

Did you try disabling Auto-Negotiation on the Interface and manualy setting the speed(aka. Forced Mode)?

3

yes I did that, and still link flapping…

4

For future reference, when posting a help request, putting something useful in the subject makes it far more likely that you will get some help, and it makes the issue far easier to find in a search.
For example, instead of “Assistance Needed ASAP”, something more useful might be “Need help with link flapping on CCR2116”.

5

Click bait titles dont tittilate you k6 LOL. Why not subscribe to the anav proposed sandbox for new members!!.. Nope we want to continue to get such nonsense… Getting hit on the head lessons is two doors down. We should all buy orange wigs.