We have a Cisco 5508 WLC controlling 53x AIR-AP2802I-Q-K9.
current image is 8.5.171
We are experiencing under 10Mbps speed and at best ~20Mbps while when connected on wired, we get ~600Mbps
Most clients are Apple Macbook Pro laptops and on using 5GHz radio
Both LAN and WLAN are on the same topology.
Any guidance on where to begin to troubleshoot this issue? Any output I should be looking at? I am newb to wireless
Is that worked ever better, from day 1 you see this issue, what is the changes done before working vs now ?
is this issue only MAC books , how about Windows PC ?
how is your speed testing mechanism, when do you local transfer using Wifi ? what speed you get ?
how is your path to reach internet - wired v/s wifi ?
have checked on the path any errors and conection issue ?
troubleshooting tips :
check config analyzer :
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I am seeing a lot of dropped packets on the link between the WLC and our Core switch (WS-C3750X-24S)...
CS#sh interf g1/0/1GigabitEthernet1/0/1 is up, line protocol is up (connected)Hardware is Gigabit Ethernet, address is a0ec.f978.dc01 (bia a0ec.f978.dc01)Description: Port 1 WC1.HND1:CS-WCMTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,reliability 255/255, txload 33/255, rxload 35/255Encapsulation ARPA, loopback not setKeepalive not setFull-duplex, 1000Mb/s, link type is auto, media type is 10/100/1000BaseTX SFPinput flow-control is off, output flow-control is unsupportedARP type: ARPA, ARP Timeout 04:00:00Last input 00:00:16, output 00:00:00, output hang neverLast clearing of "show interface" counters 1d01hInput queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 696944Queueing strategy: fifoOutput queue: 0/40 (size/max)5 minute input rate 137318000 bits/sec, 21631 packets/sec5 minute output rate 133289000 bits/sec, 21081 packets/sec965016680 packets input, 777227106120 bytes, 0 no bufferReceived 5389863 broadcasts (5303607 multicasts)0 runts, 0 giants, 0 throttles0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored0 watchdog, 5303607 multicast, 0 pause input0 input packets with dribble condition detected960957159 packets output, 761389196240 bytes, 0 underruns0 output errors, 0 collisions, 0 interface resets0 unknown protocol drops0 babbles, 0 late collision, 0 deferred0 lost carrier, 0 no carrier, 0 pause output0 output buffer failures, 0 output buffers swapped out
Could this be the issue? I cleared counters and less than a day later, the output drops have already gone up (see output showing output discards after just 1 day)
you have provided the inputs we asked so hard to judge the what is the issue ?
regarding interface output, change the SFP and chagne the patch and check. (some time you see the drops, if the interface overloaded? )
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