How to force host-only adapter to retrieve IP from VirtualBox DHCP server

I have a Linux RHEL guest running on a VirtualBox VM, the host OS is Windows 7.

I'm trying to link the two over a host-only network, but I can't access one machine from the other, I guess it's because the host-specific host adapter isn't properly linked with the VBox network manager. All this fails to retrieve a valid IP from the VBoxDHCP server.

Every time I restart the host-only adapter, I somehow get the same IP that Windows 7 provides

inet addr:169.254.17.104 Mask: 255.255.0.0

However, my VBoxDHCP server is not configured in that scope.

➤ ./VBoxManage.exe list dhcpservers
NetworkName:    HostInterfaceNetworking-VirtualBox Host-Only Ethernet Adapter
IP:             192.168.56.100
NetworkMask:    255.255.255.0
lowerIPAddress: 192.168.56.101
upperIPAddress: 192.168.56.254
Enabled:        Yes

I tried to fix this delete and then create adapter again using

VBoxManage.exe hostonlyif remove
VBoxManage.exe hostonlyif create

However, the Linux guest machine works fine.

[root@ivs-dev] # dhclient -v eth1
Internet Systems Consortium DHCP Client 4.1.1-P1
Copyright 2004-2010 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/eth1/08:00:27:b6:7c:63
Sending on   LPF/eth1/08:00:27:b6:7c:63
Sending on   Socket/fallback
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 8 (xid=0x3c540d01)
DHCPOFFER from 192.168.56.100
DHCPREQUEST on eth1 to 255.255.255.255 port 67 (xid=0x3c540d01)
DHCPACK from 192.168.56.100 (xid=0x3c540d01)
bound to 192.168.56.102 -- renewal in 502 seconds.

Hope you guys can help me because it was working before and suddenly it doesn't work anymore. Any ideas will be welcome.

greeting