[Can acess DSM from wifi but not from LAN]

Hi, sorry about my bad english i will try to get undestood.

i made a custom build of jun loaders 1.02B with 3615sx, on a hp dx2390, e7400, mobo ms-7525.
the DSM is connected to router and have a ipassigned already via LAN,

i have 1 pcs and 3 laptop on my lan. all win10.

from my computer when i connect to router trough the wifi, all works fine, i can see the DSM and connect to the folders.
but if i connect the ethenert cable i have internet but cant see the DSM, even using synology assistant.

the same ocurs with all the pc's here!

any tought there?

[DSM 6.1.7-15284]

- Outcome of the update: SUCCESSFUL

- DSM version prior update: DSM 6.1.7-15284

- Loader version and model: JUN'S LOADER v1.02b - DS3615xs

-  Using custom extra.lzma: NO

- Installation type: BAREMETAL

- Additional comments: REBOOT REQUIRED