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MikroTik App
 
totalvamp
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Topic Author
Posts: 2
Joined: Tue Nov 23, 2021 7:38 pm

Links down/up at random moments

Sun Jan 23, 2022 2:55 pm

Hi,

I have the issue on my MikroTik CRS309-1G-8S+IN that randomly links go down and come back up within a minute or so (sometimes longer).

I'm running RouterOS7.1rc6, but it happened before upgrading the OS version.
The link number is random, although 1 seems to be the most unstable.

I'm using SFP to ethernet and am connected with cat7 cables to the PC. The cable tests are all fine and have tried to switch cables, to no avail.

Does anyone know what could cause random link drops?
Time Jan/23/2022 21:08:32
Buffer memory
Topics
interface
info
Message sfp-sfpplus1 link down
50 seconds later it's back up
Time Jan/23/2022 21:09:21
Buffer memory
Topics
interface
info
Message sfp-sfpplus1 link up (speed 10G, full duplex)
The same happens for the rest of the ports, but mostly 1,5,6 and 7 (others arent used as much)

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