@GRL 

I needed to make some changes tonight, so rebooted the network after.

My WAN.LAN2 SFP+ is not-operational again.  I will leave it like this until tomorrow incase anyone at TP-Link wants to remote in or wants logs from me, just let me know

I've got the same issue, on firmware 1.3.0. Having to go and power the router off totally wait a few sec and power it back on to get the SFP+ (port2) to start working again, a reboot has no effect, it has to be a power down. Tried swapping the SFP+ modules, swapping the fibre and using an SFP+ DAC cable. I even swapped out the TP-Link TL-SX3008F the ER8411 connects to (as i happened to have a spare), nothing worked. As a test i used the same SFP+ modules and fibre to link both the TP-Link TL-SX3008F switches together and the connection worked perfectly. So its defo a firmware issue as it was fine on the previous firmware, never missed a beat...

 I have edited the post title as this same build firmware is now Official and available on the support pages, and clearly has a confirmed and repeatable issue.

I did manually reflash my 8411 with the 1.3.0 version i downloaded from support page, just in case there was any difference, same issue - it is the same build date and REL though.

I re-confirmed this issue exists on a totally unconfigured router as well on 1.3.0

Pin hole reset, zero controller or standalone configuration, router came back up no SFP+ LAN port.  Power cycle, still zero configuretion, port was back up. 

  @Clive_A 

Current firmware build - 1.3.0 Build 20250407 Rel.80897.    (downloaded form EN support siute as an official firmware, same build version and rel as the last pre-release on controller firmware feature)

Current SFP+ DAC cable - QSFPTEK 10Gb/s SFP+ DAC Cable 1 Meters

I have 5 of these.  All work fine on firmware 1.2.3 and older, all work fine on SG3428X switch ports to other stuff in both 10g and 1g mode

I also tested 2 sets of these TP-Link SM5310-T 

Network Diagram - 

Its simple - Router > SG3428X v1.3 SFP+ ports

Controller Config - Attached

EDIT = Also sent in reply to the ticket email

  @Clive_A 

Hi Clive

Support Ticket updated and an OC300 backup attached to it.

Best Regards

Lee...

Clive_A wrote

Hi @GRL @MantonL @MR.S 

Thanks for posting in our business forum.

I need a diagram of your network with the SFP+ marked out.

The SFP module number is involved in this case.

Your exported backup. Original backup(not the support backup).

Your current firmware build. I see GRL mentioned it is pre-release.

 

Will create tickets for you guys regarding this and backup.

Thought i would post an update

Support confirmed the issue, and are still analyzing.  They replicated it 14 times out of 242 reboots

  @Clive_A 

Will you be able to release it as a separate file on the forum rather than just through controller firmware page?   If it has the same version number, controller wont update a device on the firmware page, even if the build date is newer (support confirmed this)