@MYN 

Thank you for your answer.

I will check the DST settings in the omada software controller.

DST has never been activated and from a quick look I saw in the configuration it is disabled.

I haven't made any changes in the last 4 to 5 months.

I will look into sending the information you requested by the end of the week.

Good morning

I haven't done anything because I had another serious problem and couldn't go to the site to check it out. This weekend I will go and check it and let you know.
Thanks for the question.

Good Evening
Today I came to the site where I have the problem with the SG2008 switch with the vlans. I checked the DST on both the site and the controller and both were disabled.
I enabled them and set them with the correct parameters (week, month, hour) but nothing happened.
The same problem remains, from any vlan I try to ping a specific terminal, I have a request time out.

Whether I ping from the specific terminal or from another terminal I get the same Request time out message. I have four vlans with IP Address 172.168.32.0/24 , 173.168.42.0/24 , 193.168.56.0/24 and 192.168.30.0/24.
The IP Address of the router is 10.10.10.1/24.
The Ip Address of the switch is 10.10.10.2.

My problem is that from the terminal that is on the 172.168.32.0 network I can ping the terminals that are on the 193.168.56.0 network because the printers I have are connected to this network. I can only ping this network no others.
This all happened after the last switch version upgrade to 3.0.8.
I had no problems before the upgrade.