Chapter 30 Troubleshooting
P-2812HNU-51c User’s Guide
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Your layer-2 interface must be in VLAN MUX Mode or MSC mode to create multiple
WAN serivces for each connection.
I cannot access the Internet anymore. I had access to the Internet (with the P-
2812HNU-51c), but my Internet connection is not available anymore.
1 Check the hardware connections, and make sure the LEDs are behaving as
expected. See the Quick Start Guide and Section 1.6 on page 30.
2 Turn the P-2812HNU-51c off and on.
3 If the problem continues, contact your ISP.
The Internet connection is slow or intermittent.
1 There might be a lot of traffic on the network. Look at the LEDs, and check Section
1.6 on page 30. If the P-2812HNU-51c is sending or receiving a lot of information,
try closing some programs that use the Internet, especially peer-to-peer
applications.
2 Check the signal strength. If the signal strength is low, try moving your computer
closer to the P-2812HNU-51c if possible, and look around to see if there are any
devices that might be interfering with the wireless network (for example,
microwaves, other wireless networks, and so on).
3 Turn the P-2812HNU-51c off and on.
4 If the problem continues, contact the network administrator or vendor, or try one
of the advanced suggestions.
Advanced Suggestions
• Check the settings for QoS. If it is disabled, you might consider activating it. If it
is enabled, you might consider raising or lowering the priority for some
applications.
