Aastra Telecom MBU 400TM manual Issue Causes Solutions Power, Indicator on, MBU is not lit, I-Net

Troubleshooting

Issue	Causes		Solutions
The POWER	1)	MBU is not	1)	Check that the MBU
indicator on the		powered.		power cord is connected
MBU is not lit.				properly, and that the
				adapter is plugged
				into a power outlet. (If
				possible, a continuous
				power outlet.)
The I-NET	1)	The Ethernet	1)	Check that the Ethernet
indicator on the		cable is not		cable between the WAN
MBU is not lit.		connected.		port on the MBU and
				the LAN port on your
				modem or router is
	2)	The router or	2)	connected properly.
				Turn on the power to the
		modem is not		modem or router.
	3)	powered.
		The MBU cannot	3)	In Internet settings,
		retrieve an IP		check that the IP mode
		address.		corresponds to the IP
				mode of your Internet
				connection.
There is no audio	1)	The router blocks	1)	Use port forwarding.
when I make		audio.		Check your router’s
Internet calls.				user manual to see
				how to configure port
				forwarding.
I cannot make	1)	The landline	1)	Check that the landline
landline calls.		cable is not		cable between the Line
		connected.		port on the MBU and
				the telephone wall outlet
	2)	The landline is	2)	is connected properly.
				Contact your landline
		out of order.		provider.

30 MBU 400 Installation Guide