Bought it directly at KMtronic:
LAN Ethernet IP 8 channels WEB Relay board
SKU: SS_WEB8REL_BOX
WebUI says Version 1.1
Manufacturer Link: LAN Ethernet IP Eight channels WEB Relay Controller
Some WebUI debugging:
GET http://192.168.178.172/status.xml
<response>
<relay0>1</relay0>
<relay1>0</relay1>
<relay2>0</relay2>
<relay3>0</relay3>
<relay4>0</relay4>
<relay5>0</relay5>
<relay6>0</relay6>
<relay7>0</relay7>
<relay8>0</relay8>
</response>
If I turn on/off switch:
GET http://192.168.178.172/relays.cgi?relay=1
Respons with inline HTML code.
Edit1: If I open http://192.168.178.172/FF0100 in the browser I get the error 404 described in the error message I posted yesterday.
Edit2: To clairify: I just want to get rid of the error message in Lovelance because the Webrelais works with the integration.