If you leave the managed switch at factory settings, it will behave as an unmanaged switch, except that it has an IP. If using more than one managed switches or a router using the same IP, you have...

Next, check the cables. Connect a laptop to the cable feeding the middle switch, then test with the switch. Also check the middle switch stand-alone, with your laptop and a second device connected to...

freddb wrote I cannot disable all Vlans apparently, do you suggest I can? Do you know how? thanks for the suggestion about VLAN, I suppose that this config should be the exact same for all switch,...

If your computer running the browser is in the 192.168.1.0/24 network, it cannot connect to devices in the 192.168.2.0/24 network. Why don't you just assign IPs from the router's 192.168.1.0/24...

E-raser wrote I also get "General Error" Fresh install didn't solve it :-( That's mysterious. A general error is thrown when something unforeseen, unspecific happens. Can't imagine what could go...

If you assign IPs and save the config (two steps!), everything should be fine to be able to chain the switches if default settings are o.k. for the moment, albeit it would be better to connect all...