I am back at the switch. I have tried some experiments based on your suggestions. Experiments All ports (regardless of transceiver): I can set the speed to either 1000M or 10G. Attempting to choose...

I'm away from the switch right now, but here's a picture of what I was doing: ┌─────────────────────────────┐ │ TP-Link consumer-grade │ │ Wi-Fi router │ └─────────────────────────────┘ │ 1G │...

I think I am seeing something similar and it would be useful to have an official response. I can neither set the speed to auto nor set it explicitly to some speed other than 10G. (I don't have any...

I'm not sure I understood that response, but in any case... After resetting the switch to factory defaults — several times and for unrelated reasons — I inserted the 10G module into the third port...

Thanks. The later parts of that post did help. When I first saw that post, I concluded it must not apply to me. The early parts of the post talked about disabling DHCP on the upstream router. I...

@Clive_A As mentioned, the module is indeed TP-Link SM5310. As mentioned, the behavior does not change even when this is the only module in the switch, so heat buildup due to adjacency isn't the...