SG135 Rev3 - Since Update not working correctly

Quick Update:

The SG135 is working now, but i dont know why.
I had now Links on my ETHs und lan & internet ist working again.

Only Problem ist that the Status LED is always blinking rapidly - and this dosnt stop.

That was not before the last Update.

Could somebody help me here to find out what is the Problem?

Hey xenon2008 ,

Thank you for reaching out to the community, the rapid blinking is because the adapter is sending or receiving network data the frequency of the flashes varies with the amount of traffic For ETH, and for STATUS LED it could be multiple reason.

Status LED is Flashing very fast in GREEN and this permanently

HDD LED is normal when some activity to the HDD/SDD in blue

Permanently is normal and for HDD it indicates that's active and operating. 

are you sure? 
I'm aware of the hard drive LED, but the normal status LED seems strange to me
I was of the opinion that was not the case before the update!

And the link I posted above in the first post describes the same thing! 
UTM SG115 rev 3 status led keeps flashing 

The Power LED is normal ON and the STATUS is since the Update blinking without an end.
The Manual says that this LED only flashes quickly when the system starts or shuts down

Here a quick Video:

Interesting, which rev model this is ? Usually status should be solid green. And it flashes when device is booting up or shutting down. Are you experiencing any network impacts or internet issue or users disconnecting not authenticating or high cpu or high mem utilization ? 

As mentioned above, this is a Rev 3.
After the update last night, all network card links were no longer available. Not a single NIC LED on the front of the firewall was lit.
after several reboots it works again and also the internet and the LAN worked again.
So far I haven't been able to find any other errors, everything seems to be working "normally".

The utilization of the CPU, RAM, HDD is all in the normal range as before.

What else could I do?

If everything is normal, then that's all. If you have face any network impact feel free to revert us here !

well but the flashing makes me nervous.
there must be a reason, especially since it wasn't there before.

But first of all, thank you very much for your quick replies and your time for me

Best regards

Reach out to your Sophos partner if you have any questions regarding the use of duct tape to cover up non-functional LEDs to make sure your roll is not end-of-life yet.