FLYPRO copper SFP coded for Cisco shows no-link and sfp-rx-loss on a CRS112-8P-4S
A FLYPRO SFP-1G-CS-100M 1000BASE-T module in a MikroTik CRS112-8P-4S (RouterOS 6.47.10) was detected but reported no-link with sfp-rx-loss: yes, whatever the far end (MikroTik LHG/RB750Gr3, Ubiquiti, Cisco). Fixed 1G speeds, other module units and rebootts were tried; only a Ubiquiti switch linked with a forced 1G setting.
- Hardware: MikroTik CRS112-8P-4S, MikroTik RB750Gr3, MikroTik RBLHGG-60ad
- Transceivers: FLYPRO SFP-1G-CS-100M, MikroTik S-RJ01, FS.com SFP-GB-GE-T, Cisco GLC-T clone
- Form factor: SFP
Symptoms / messages:
no-link
sfp-rx-loss: yes
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Comments 1
The manufacturer speciifes the FLYPRO module for Cisco devices only; marketplace claims of universal compatibility are unreliable. A MikroTik S-RJ01 (or FS SFP-GB-GE-T) is the right part, and the S-RJ01 worked without issues once received.