Hi TP Community,

we tried to extend our OMADA company network to new offices 400m away from our current location.
We let a company install a 50/125 om2 Fiber between the old and the new office added on the switch TL-SG3428MP v2.0 a mini GBIC Module TL-SM311LM(UN) V3.0 and purchased for the new offices a new switch TL-SG3210XHP-M2 v1.0 also equipped with a mini GBIC Module TL-SM311LM(UN) V3.0 but we do not get a Link established.

If we have them next to each other we can establish a link with cooper ports which are similar configured than the FO ports.

We verified that TX and RX are correct connected and make verified that the module is emitting a light. We also changed already the mini gbic module as we purchased one spare.

I think that maybe the setting of the port speed of the TL-SG3210XHP-M2 v1.0 has to be set to 1Gbit but I cannot find the setting for this in OMADA and the switch web interface is not accessible due to use of OMADA.

If I place both GBIC Modules in the slots of the TL-SG3428MP v2.0 and connect them with a FO patch cable they Ports are getting active  and the LED start flashing (I know I'm create a loop) but if I do the same at the TL-SG3210XHP-M2 v1.0 nothing happens, That's why I suppose it is a setting on this switch.

thanks, David