Crc Error Wireless Network
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Management Wi-Fi Trends Perspective/Opinions News Resources eBooks Wireless Networking Glossary What's New? Advanced Search Forum Wi-Fi Planet Forums Troubleshooting Poor Wifi Perforamnce - receive CRC errors If this is your first visit, be sure to check out the FAQ by clicking the link above. You may wifi crc have to register before you can post: click the register link above to proceed. To start received with crc error viewing messages, select the forum that you want to visit from the selection below. Results 1 to 5 of 5 Thread: Poor Wifi Perforamnce what are crc errors - receive CRC errors Tweet Thread Tools Show Printable Version Email this Page… Subscribe to this Thread… Display Linear Mode Switch to Hybrid Mode Switch to Threaded Mode 12-31-2006,12:01 AM #1 xlink_nz View Profile View Forum Posts Registered User Join Date crc router Dec 2006 Posts 2 Poor Wifi Perforamnce - receive CRC errors Hello I purchased an Edimax MIMO router [BR6216mg] and MIMO Cardbus adapter[EW7608pg] Everything works well except the following issue 1. When I look at the statistics in the RAlink wireless utility it shows large numbers of frames received with CRC errors [5 to 10% of all receive frames]. I suspect this is why I am only getting 8Mbps [when coping a large file from the laptop to a PC ethernet
Cyclic Redundancy Check In Computer Networks
connected to the router. Furthermore this issue occurs when the router and laptop are next to each other despite good link quality, signal strenghs 1 & 2 and low noise. I have tried all channels, turned off encryption, forced to G only mode etc all that makes little difference 2. I upgraded my Windows 2000 SP4 laptop to V1110 drivers but this made no difference. I haven't upgraded the router yet. 3. This issue doesn't occur when I forced the setup into 802.11B mode but then I only get 4Mbps. What could the issue be ? Kind Regards ps: I downloaded Netstumbler hoping it would verify the ralink utility link, signal strenght and noise stats but Netstumbler won't show noise on my adapter [NDIS 5.1] Reply With Quote 12-31-2006,08:34 AM #2 M/Q View Profile View Forum Posts Registered User Join Date Nov 2003 Posts 5,553 First, checking throughput by copying a file is not a very accurate method. You maybe correct, but it is still better to make sure by either using a FTP server client combination or Qcheck. http://www.ixiacom.com/solutions/display?skey=qcheck Second, I am not completely familiar with RaLink, but I was under the impression that it added its own drivers to the wireless adapter. If that is true then the device may not be using the proprietary MIMO technology. Third, when you tested this were both computers in the same room with the router? From my notes on CRC: CRC errors
Aironet Antennas and AccessoriesTroubleshoot and AlertsTroubleshooting TechNotes Intermittent Connectivity Issues in Wireless Bridges Download Print Available Languages Download Options PDF
Cnc Router
(31.2 KB) View with Adobe Reader on a variety of devices ookla Updated:Feb 27, 2014 Contents Introduction Prerequisites Requirements Components Used Conventions Reasons for Intermittent Connectivity Issues in Wireless Bridges Radio Frequency Interference Use the Carrier Test Option in Bridges to Check for RFI Sub-Optimal/Incorrect Data Rate Settings on the Wireless Bridges Fresnel Zones and Line of http://forums.wi-fiplanet.com/showthread.php?7082-Poor-Wifi-Perforamnce-receive-CRC-errors Sight Issues Problems with Antenna Alignment Clear Channel Assessment Parameter (CCA) Other Issues That Degrade the Performance of Wireless Bridges Related Information Introduction This document explains some of the main reasons for intermittent connectivity issues with wireless bridges, and how to resolve these issues. Prerequisites Requirements Cisco recommends that you have some basic knowledge of wireless bridges. http://www.cisco.com/c/en/us/support/docs/wireless/aironet-antennas-accessories/66090-intermittent-wireless-bridges.html Refer to Wireless - Technical Support & Documentation for more references on wireless bridges. Components Used The information in this document is based on Cisco Aironet Wireless bridges. Conventions Refer to Cisco Technical Tips Conventions for more information on document conventions. Reasons for Intermittent Connectivity Issues in Wireless Bridges Here are the common reasons for intermittent connectivity issues in wireless bridges: Radio Frequency Interference Sub-optimal/Incorrect Data Rate Settings on the Wireless Bridges Fresnel Zone and Line of Sight Issues Problems with Antenna Alignment Clear Channel Assessment Parameter (CCA) Other Issues that Degrade the Performance of Wireless Bridges Radio Frequency Interference Radio Frequency Interference (RFI) involves the presence of unwanted interfering RF signals that disrupt the original data signals from wireless devices. RFI in a wireless network can lead to adverse effects, for example, intermittent connectivity loss, poor throughput, and low data rates. There are different types of RFI that can occur in a wireless network environment, and you must tale these RFI types into consideration before you i