Papouch Temperature sensors. Cannot add multiple devices.

Hi all,

I'm using Oblservium since 2 years and everything works ok, but last week I purchased 5 Papago Ethernet Temperature sensors from Papouch and I would like to put them on monitoring by my Observium server.

There are a total of 5 sensors: 1 purchased one month ago and 4 purchased last week.

I can add only the first one purchased and only one of four newly purchased devices.

When I try to add another device I got the following error: "Already got device with SNMP-read sysName () and other system Oids (...)"

Obviously, all of these 5 sensors have different hostnames, different IPs.

For the 2 successfully added sensors, monitoring is very nice, including temperature, humidity and dew point.

Could you please help me to get all of these 5 sensors working with observium?
Thanks in advance for your help.
Best Regards

digitalchild