@barni
Hi, for your issue, we would like to confirm the below information:
When the PC or other wired devices connect LS105G, can they get internet?
Can you follow the instruction to check the IP address, default gateway when the PC connects the switch? https://www.tp-link.com/support/faq/838/
How about the IP address and gateway when the PC connects the router?
'Using the LS105G switch, DHCP will not work.
The rest of communication is OK.'
Can you please explain the issue further for us to check?
Look forward to your reply.
Good day!