Hi @MelvinGr

Thanks for posting in our business forum.

This is not a problem with the switch in my opinion. Nor a compatible issue between the SFP module and SFP port.

The switch only supports 1 and 10G SFP. The module is a 1/10G SFP interface and adaptive RJ45 interface.

So the question is who sleeps? The switch interface does not sleep. That would maintain the connection until the computer sleeps.

Did you try other computers with different NIC adapters?

And well explained in Common Questions About SFP Module and Media Converter

Regardless of what module you have, the SFP interface between the fiber would link. RJ45 does not work which means the problem resides between the NIC and the SFP RJ45 interface.

Hi @kash_ 

Thanks for posting in our business forum.

kash_ wrote

I had the exact same issue on my TL-SX3008F with the latest firmware versions and multiple brands of SFP+ modules. Downgrading to 1.20.0 Build 20231011 Rel.42220 fixed it for me.

What's your NIC and module model number?

Hi @MelvinGr 

Thanks for posting in our business forum.

MelvinGr wrote

Hello,

 

I am having some issues with the link between the switch and a workstation. I am using an SM5310-T(UN) 10G BASE-T SFP+ module and a 3M cat6a cable which connects to a Realtek 2.5GbE onboard network card.

 

When I connect both ends, the link comes up and the switch detects the link as 10G while the workstation detects the link at 2.5 when using auto-negotiation. After I shutdown the workstation or if it goes to sleep, the next time it comes up the link does not come up anymore. However I found that I can use the next port on the switch. It will come up at 10G on the switch and 2.5G on the workstation and everything works again. The next time the PC goes to sleep or is shut down I need to use the next port in the switch until I exhausted all free ports. If I then reboot the switch, I can use all ports again, once.

 

I tried everything from re-plugging the cable and sfp module, disabling and enabling the network adapter in Windows. The only thing that works, is setting the link speed on both the switch and the workstation to 1G. The link will then come up and gives a yellow light instead of green (1Gb instead of 10Gb). This will continue to work. Forever. Setting the speed back to auto-negotiation does not work. I also noticed that I can not set the switch port to 2.5G because it gives me a message that "it is not supported for fiber" even though I'm not using fiber.

 

Did I miss anything regarding compatibility? Do I need another SFP module? Or is the switch just not capable of doing 2.5G this and is the link coming up just luck.

What's your NIC model number?

Hi @kash_

kash_ wrote

  @Clive_A 

Clive_A wrote

Hi @kash_ 

Thanks for posting in our business forum.

kash_ wrote

I had the exact same issue on my TL-SX3008F with the latest firmware versions and multiple brands of SFP+ modules. Downgrading to 1.20.0 Build 20231011 Rel.42220 fixed it for me.

What's your NIC and module model number?

Iocrest AQC113 USB4 NIC and multiple modules had the same issue - 10GTek 30m ASF-10G2-T, Wiitek 80m, Xicom 80m. Everything was working fine on 1.20.0 but upgrading to 1.20.2 caused the port to become unresponsive after the laptop went to sleep. The RJ45 modules would light up with power and link indicators but the switch link light would still be off and no traffic would pass. I had to move the SFP module to another port or reboot the switch to get things to work again. I downgraded back to 1.20.0 and there hasn't been any issues for a few months now.

Thanks for the info. Will look into this and see if these share any common grounds.

 Hi @kash_  @MelvinGr 

kash_ wrote

  @Clive_A 

Clive_A wrote

Hi @kash_ 

Thanks for posting in our business forum.

kash_ wrote

I had the exact same issue on my TL-SX3008F with the latest firmware versions and multiple brands of SFP+ modules. Downgrading to 1.20.0 Build 20231011 Rel.42220 fixed it for me.

What's your NIC and module model number?

Iocrest AQC113 USB4 NIC and multiple modules had the same issue - 10GTek 30m ASF-10G2-T, Wiitek 80m, Xicom 80m. Everything was working fine on 1.20.0 but upgrading to 1.20.2 caused the port to become unresponsive after the laptop went to sleep. The RJ45 modules would light up with power and link indicators but the switch link light would still be off and no traffic would pass. I had to move the SFP module to another port or reboot the switch to get things to work again. I downgraded back to 1.20.0 and there hasn't been any issues for a few months now.

What would be the SFP module hardware version?