I have a Sophos UTM 220. We have four DHCP server scopes setup. 192.168.1.xx, 2.xx, 3.xx, 4.xx. The 4.xx server is designated as the guest network. We have setup network definitions for computers on the 1.xx, 2.xx, and 3.xx network. However when computers, that have a reservation on one of these networks, are turned on and log on they are getting an ip address on the guest network instead of their network definition ip address. Right now to prevent this we have to disable the guest network. Once disable the computers will get the proper ip address according to the network definition. Why is this happening? To fix it right now we are having to ipconfig /release and then ipconfig /renew. Then they get the proper ip address and work good. But later on they will once again get a ip address on the guest network. Not sure what is going on!! Please suggest.
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