no Devices S10 or C10

no Devices S10 or C10

Hi Everybody,
for years, we use wyse s10 and c10. Now we have the wdm manager 4.8 installed us. With the result, that no clients are found through the search. But the these clients the we enter by hand, these clients are possible to restart e.g. .
is here Somebody has an idea what I'm doing wrong?
All clients to hand write is not an option.

Gunther

I forgot: each client is running Wyse ThinOS.

in this case, i come not one step forward

it will not be found any client despite any set ip ranges
not even the clients, of which I know that they have an address from the set ip range!