You boot a Cisco TelePresence System TX1300. A red X appears on the screen during step 4 in the boot
process.
Which of the following should you do?

A.
Reboot the system.

B.
Configure a static IP address.

C.
Contact Cisco Technical Support.

D.
Check the status of the DHCP server.

E.
Check the network port and the Ethernet cable.

Explanation:
If a red X appears on the screen during step 4 in the boot process for a Cisco TelePresence System (CTS)
TX1300, you should check the network port and the Ethernet cable. The fourth step verifies whether the CTS
TX1300 has network connectivity. If the CTS TX1300 has network connectivity, the fourth circle in the lower
left-hand corner will contain a check mark; if not, it will contain a red X.
You need not reboot the CTS TX1300. Rebooting the system is unlikely to fix a network connectivity error.
You need not contact Cisco Technical Support. If the CTS TX1300 had displayed a red X during step 6 in the
boot process, you would have needed to contact Cisco Technical Support. A red X in the sixth circle indicates a
compact flash error.
You need not check the status of the Dynamic Host Configuration Protocol (DHCP) server. If the CTS TX1300
cannot reach a DHCP server, it will configure itself with the IP address 192.168.100.2. A red X will not be
displayed if the CTX TX1300 has network connectivity but cannot reach the DHCP server.
You need not configure a static IP address. Configuring a static IP address will not fix a network connectivity
error that would result in a red X appearing in step 4 in the boot process.

Cisco: First-Time Setup: Loading your Software and Initial System Configuration