OK so, here we go.
Specs:
Switch Mercusys 5 port 10/100mbs MS105 switch
my MOBO: ASUS H110M-K
network adapter: Realtek PCIe GbE Family controller (fully updated, as of april 23rd)
Cables: crossed RJ45 pinned in T568-A way.
Modem: Askey RTF3507VW-N1 (fully updated, got it from ISP because of optic fiber)
Setup: Modem/router -> switch -> desktop (other pcs aswell)
Switch info: Connected 3 out of 5 ports, one for the modem (middle one) and the other two (which I tested on all other ports) are pcs, one connects normaly, the other one is the faulty one.
The issue:
When I connected my desktop to the switch, win10 identifies the network, can get a IP (manually, since it won't access DHCP either, giving me the obnoxious 169.254.X.X ip) but cant get any conection at all (can't even enter default gateway). I've disabled/enabled DHCP, nothing, IPV6, nothing, tried flushing and changing DNS (google's to OpenDNS's) tried the ipconfig /renew and /release, also nothing, tried almost every command related to netsh, also nothing. Windows 10 troubleshooter sometimes says its ethernet not configured properly, or DNS server is not available, or just that my modem has some connectivity issues. Tried factory resetting my modem, even did a fresh install of windows and all network-related drivers. What bugs me though, is that on the same setup, my other notebook connects, but not my desktop. Also every other computer on the network (around 5 pcs) are connected to the DHCP server, even the other one in the same switch, which works fine.
Connecting my desktop directly to the modem works just fine, the problem is with the switch, resetting it also does nothing (just plugged and unplugged the power cable)
Specs:
Switch Mercusys 5 port 10/100mbs MS105 switch
my MOBO: ASUS H110M-K
network adapter: Realtek PCIe GbE Family controller (fully updated, as of april 23rd)
Cables: crossed RJ45 pinned in T568-A way.
Modem: Askey RTF3507VW-N1 (fully updated, got it from ISP because of optic fiber)
Setup: Modem/router -> switch -> desktop (other pcs aswell)
Switch info: Connected 3 out of 5 ports, one for the modem (middle one) and the other two (which I tested on all other ports) are pcs, one connects normaly, the other one is the faulty one.
The issue:
When I connected my desktop to the switch, win10 identifies the network, can get a IP (manually, since it won't access DHCP either, giving me the obnoxious 169.254.X.X ip) but cant get any conection at all (can't even enter default gateway). I've disabled/enabled DHCP, nothing, IPV6, nothing, tried flushing and changing DNS (google's to OpenDNS's) tried the ipconfig /renew and /release, also nothing, tried almost every command related to netsh, also nothing. Windows 10 troubleshooter sometimes says its ethernet not configured properly, or DNS server is not available, or just that my modem has some connectivity issues. Tried factory resetting my modem, even did a fresh install of windows and all network-related drivers. What bugs me though, is that on the same setup, my other notebook connects, but not my desktop. Also every other computer on the network (around 5 pcs) are connected to the DHCP server, even the other one in the same switch, which works fine.
Connecting my desktop directly to the modem works just fine, the problem is with the switch, resetting it also does nothing (just plugged and unplugged the power cable)
But if not, post here and we'll figure it out. 
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