Rosewill WIRELESS N ADAPTER RNX-N150UBE Guía de usuario descargar pdf (Pagina 71)

TROUBLESHOOTING Q&A

groov Box User’s Guide

Troubleshooting Q&A

Q: What's a DHCP (dynamic host configuration protocol) server?

A: A DHCP server automatically assigns IP addresses to devices on the network, which is what the

groov Box expects. If you have no DHCP, work with your IT Department to choose a static IPv4

address for the groov Box. To assign the fixed IP address, you’ll need:

• a Windows PC on the same network subnet as the groov Box

• groov Find utility (on the CD that came with the groov Box)

• to assign the static IP address to the Box. See “Assigning a Static IP Address” on page 29.

Once you’ve assigned the static IP address, open your web browser and for the URL enter https://

plus the IP address you assigned to groov. For example: https://182.154.1.68

Q: What’s a DNS and what if I don't have one?

A: A DNS (domain name server) keeps track of the unique hostname for each device on the

network, so you can find it by name even if its IP address changes. If your network has no DNS, you

won’t be able to access the groov Box using its hostname, but you can access it using its IP address.

To determine the IP address, you’ll need:

• a Windows PC on the same network subnet as the groov Box

• groov Find utility (on the CD that came with the groov Box). See “To open groov Admin using

groov Find (Windows only)” on page 21.

Once you’ve found your groov Box in groov Find, click the link to set up the Box. Also make a note of

the IP address shown, so later you can use it in your web browser instead of the hostname: for the

URL enter https:// plus the Box’s IP address. For example: https://192.168.1.220

Q: My computer has more than one NIC. What does that mean?

A: More than one NIC can cause a problem when you’re trying to communicate with groov using

your browser and the groov Box’s hostname.

Each NIC communicates on a separate network subnet. You may have one network subnet set up

for your computers and a second one set up for your control system, for example (this is a pretty

common scenario, and in fact we recommend it for security).

Make sure you’re trying to reach the groov Box using the NIC for the network subnet it is on. You

could unplug the Ethernet cable from your controller network NIC to force the PC to look for the

groov Box on the computer network. Then try again using your browser and the groov Box’s

hostname.

If your control system and your computers are on separate network subnets, you’ll need to set up

ETH1 on the groov Box in order to reach your control system. See the next question.

Q: When I try to configure the Modbus/TCP device, OPC UA server, or Opto 22

SNAP PAC controller, it can't be found.

A: Are your control system and your computers on separate network subnets? We recommend this

setup for security reasons, and the groov Box is designed to work this way. Here’s what to do so groov

can find your OPC UA server, Opto 22 SNAP PAC controller, or Modbus/TCP device:

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Rosewill WIRELESS N ADAPTER RNX-N150UBE Guía de usuario Pagina 71