Servers created from one master image are reported weird in SEPM

Hello

I have 5 servers that were created using one master image and they suppose to report in SEPM but there is something weird happen .

They do report but not in one time .

i.e serve SEV1 is reported for one minute and then it is replaced  by SRV2 . After another minute it is replaced by SRV3 and so on .

When server is replaced, previous server disappear from console . It is not place in "offline "group .  It's look like SEPM consider it as one server but with changeable name :)

I have tried to upload new symlink to them but without results .

Do you have any idea what going one and how to fix it . I have checked mac addresses but they are different.