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Network+ Exam

Troubleshooting Wireless Networks

October 29, 2025

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Troubleshooting Wireless Networks

Wi-Fi 802.11 Standards

802.11 wireless networks

bandwidth - theorital speed of a network 802.11 A 54 mbps, throughput 20-40 mbps

802.11b 11mbps 5-7 Mbps

802.11g 54 Mbps 30-32

802.11n 600Mbps

802.ac 1300-1900. 100-500 Mbps

802.11ax 10gbps

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Distance -

8,b,g 35 meters

n 70 meters,

ax ax

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RSSI recives signal stregenth indicator, powerlevel that th ereaio frequicnecy device is reciving. the further away the better. you should ss -60 to -57 means a strong signal and can support heavy . the closer to 0 the stronger the signal

EIRP - Effective Isotropic Radiated Power - the maximum amount of power that could be raiated from an indeal intropic antenna given antenna gain and the transmitter power.

dBi - destribuites out the power in all levels, tells how strong the power is being sent out of the AP. that is the signal sent. and tha can impact the EIRP.

wireless coverage issues

interference issues

client disassociation issues

incorrect wireless configurations

captive portal issues

wireless considerations in troubleshooting.