@CarlosGuida 

I can't say anything about Utility, but Web-interface cares a lot for browser cache.

https://community.tp-link.com/en/business/forum/topic/161894 - check this topic.

@Mitya 

Yes, I saw this topic, but my problem is different, I tried it with the browser and it gives an error when it starts uploading the file, the error presented in the Easy Smart Configuration Utility occurs at 16% of the file upload.

Is my switch defective? It has 1 month of use, I am thinking of requesting the exchange.

@CarlosGuida 

I would say it is very unlikely, that your switch is broken. Try to upgrade with other PC, browser in Private mode. You can try to bring it back to the shop, but usually FW upgrade problem relies to some PC settings.

@Mitya 

I managed, it could be that I was having some conflict with the modem that is accessed by the same ip, when I tried before even removing the cable from the modem it still gave the error.

I will leave it registered here for those with the same problem.

This time I removed all the cables, turned off the switch, turned on without cables, connected the pc cable, had to set the ip on the pc network, entered via IE and updated.

Thanks for the help anyway.