First, let me tell you that I messed up, and I am getting probably a few things confused, so most likely it is something silly that I am doing.
I have 4 v1910 switches, 2x48G, 1x24G amd 1X16G.
The 2X48G sit in the cable rack, and I had them connected to each other (if I remember correctly in stack mode, but that might not be true...it has been a long time). Lets call them switch 1 and switch 2.
The 24G is in the server rack, and connects to switch 1 in port 1.
The 16G is in my office and connects in another port.
I had 3VLANs, but only switch 1 and switch 2 used them (V1 which was default, and a Guest VLAN(2)), The 24G also had a 3rd VLAN for storage only.
I had to switch the subnet in the network and since I had to do sections at a time I created another VLAN (224).
When I setup all switches I had switches running so I did my setup relaxed. When I switched the subnet I had a ton of other work too, and I did the whole thing in 2 days, so I was shooting for the fastest resolution.
Ever since then, switch 1 and switch 2 do not talk. Since I don't need all other VLAN at the moment (I have other ways to isolate guests since we have Meraki router and AP), I tagged all ports as VLAN 224. Again, this works from the server swith to switch 1, and from the switch in my office to switch 1. But switch 2 does not connect to 1.
I am thinking that the problem is untagged traffic, or something along those lines, but I would like to understand more clearly what I am doing wrong. Since I have the network running, I don't get a lot of time anymore to just "try" since I don't want to cause downtime.
My other issue, is that when I was configuring the VLAN I selected all ports in the server switch and I forgot I had a link agregation with LACP. I have a Hyper-V server, and I am using NIC Teaming. I had this working before, but unlessI set it as independent it won't work now, and that just has me a little confused.
My next step is to remove VLAN 224 and go back to default 1, but not sure if it will fix the problem, and I will have to go back to the office do this work at 2 AM....and walk to the office the next day looking relaxed (which is not happening, I like to sleep)
Again, I must admit, that even though I know VLAN, and how they work theoretically, I don't have much experience using them besides simpler setups, so some help with this will be greatly appreciated.
Also, I used an article (I think from HP) to setup Link Agregation and LACP but I was not able to find it