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Troubleshooting
Each and every piece of every product produced by Network Technologies Inc is 100% tested to exacting
specifications. We make every effort to insure trouble-free installation and operation of our products. If problems
are encountered while installing this product, please look over the troubleshooting chart below. If an answer is not
found in the chart, check the FAQs (Frequently Asked Questions) at our website at http://www.nti1.com or contact
NTI directly for help at 800-742-8324 (800-RGB-TECH) in US & Canada or 330-562-7070 (worldwide). We will
be happy to assist in any way we can.
Problem Cause Solution
ETH-4X1 power LED does not
illuminate
• Power supply is not connected
or plugged-in.
• Make sure outlet is live and AC adapter is
plugged in. Also make sure power jack is
fully connected to the switch.
NETWORKS(s) will not
communicate with DEVICE(s)
• Poor Connection
• Wrong ethernet cable
• Make sure all ethernet cables are inserted
completely, snapping into RJ45 sockets
• Cable must be CAT 5 ethernet- straight
through type, NOT crossed
If the answer to a question is not in the troubleshooting chart or on the NTI website and a call to NTI is required,
please have the following information available at the time of the call:
• NTI model number (from the top) and serial number (from the bottom) of the switch.
M/N ___________ S/N ______________
• The total length of the ethernet cables in use. ______
• Computer Information:
• Manufacturer ______________ • BIOS Revision __________________________
• Model ____________________ • Operating System _______________________
• Ram _____________________
• BIOS Mfr. _________________
• Make and model number of any modems connected to the switch.
_______________________________________________________________
_______________________________________________________________
_______________________________________________________________