topic Latency issue on Aironet 1602i in Wireless

Latency issue on Aironet 1602i

OroOrion — Mon, 05 Jul 2021 17:30:58 GMT

Hi group, I hace a 1602i autonomous running latest IOS. Powered with power supply, connected directly to cisco switch on a Gig int. I can't have more than 100Mbps connection speed, if I force, port shutdown. Tried, different switch port, different cat6 cords. Nothing to do still connected a 100Mbps.

Might be related, but ping from PC to AP IP are less than 1ms, my PC to WIFI connected devices are never less than 1ms, can reach 1000ms event no response. I have tried, older IOS , with basic configuration with authentification. I have also tried, AP reversed to PCs, same results with less variables as possible.

I am stuck and have no clue on what could be wrong or bad. Never worked before, new AP, not refurbished ( as far as I know ).

Thanks for you help all I am close to give up ...

Re: Latency issue on Aironet 1602i

Sandeep Choudhary — Wed, 05 Jun 2019 05:31:13 GMT

Paste here:

1. the complete configt of AP frim CLI

2. Switchport config where AP is connected.

Regards

Dont forget to rate helpful posts

Re: Latency issue on Aironet 1602i

OroOrion — Wed, 05 Jun 2019 18:57:08 GMT

Here is the AP :

ap#show run
Building configuration...

Current configuration : 2492 bytes
!
version 15.3
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
hostname ap
!
!
logging rate-limit console 9
enable secret 5 $1$tzp9$2YmF7DGPo24Y3trVFOKnX.
!
no aaa new-model
clock timezone EST -4 0
clock summer-time EST recurring
no ip source-route
no ip cef
ip domain name axlan.home
!
!
!
!
dot11 pause-time 100
dot11 syslog
!
dot11 ssid Axlan 2.4
authentication open
authentication key-management wpa version 2
guest-mode
wpa-psk ascii 7 12383D3B13053B0D382E082D202663
!
!
dot11 network-map
!
no ipv6 cef
!
!
username Cisco password 7 106D000A0618
username admin privilege 15 secret 5 $1$Dg71$JNRbkUGCZJRq3Sf/RiWXk0
!
!
bridge irb
!
!
!
interface Dot11Radio0
no ip address
!
encryption mode ciphers aes-ccm
!
ssid Axlan 2.4
!
antenna gain 0
stbc
beamform ofdm
speed basic-1.0 basic-2.0 basic-5.5 basic-11.0 basic-6.0 basic-9.0 basic-12.0 basic-18.0 basic-24.0 basic-36.0 basic-48.0 basic-54.0 m0. m1. m2. m3. m4. m5. m6. m7. m8. m9. m10. m11. m12. m13. m14. m15.
packet retries 128 drop-packet
channel 2462
station-role root
rts threshold 512
rts retries 128
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 spanning-disabled
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
!
interface Dot11Radio1
no ip address
antenna gain 0
peakdetect
dfs band 3 block
stbc
speed basic-6.0 basic-9.0 basic-12.0 basic-18.0 basic-24.0 basic-36.0 basic-48.0 basic-54.0 m0. m1. m2. m3. m4. m5. m6. m7. m8. m9. m10. m11. m12. m13. m14. m15.
channel dfs
station-role root
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 spanning-disabled
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
!
interface GigabitEthernet0
no ip address
duplex auto
speed 1000
bridge-group 1
bridge-group 1 spanning-disabled
no bridge-group 1 source-learning
!
interface BVI1
mac-address 0462.7326.70e0
ip address 10.0.0.3 255.255.255.0
!
ip default-gateway 10.0.0.1
ip forward-protocol nd
ip http server
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
ip ssh version 1
!
no cdp run
!
access-list 111 permit tcp any any neq telnet
bridge 1 route ip
bridge 1 aging-time 100000
!
!
!
line con 0
access-class 111 in
line vty 0 4
access-class 111 in
login local
transport input all
!
end

Re: Latency issue on Aironet 1602i

OroOrion — Wed, 05 Jun 2019 18:57:36 GMT

Here is the switch:

version 15.0
no service pad
service timestamps debug uptime
service timestamps log uptime
service password-encryption
!
hostname switch
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$3vvQ$XNQ5L3b.K6SnuPg.g2AQv/
!
username admin privilege 15 secret 5 $1$sxvq$DpaEq7yAgrNVDWkK.rVUm.
no aaa new-model
clock timezone EST -5 0
clock summer-time EST recurring
system mtu routing 1500
!
!
ip domain-list (mydomain)
ip domain-name (mydomain)
ip name-server 10.0.0.1
ip name-server 8.8.8.8
!
!
!
!
!
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
vlan internal allocation policy ascending
!
ip ssh version 2
!
!
!
!
!

!
interface GigabitEthernet0/5
description Cisco Aironet AP
switchport access vlan 200
spanning-tree portfast
!
interface GigabitEthernet0/6
description Workstation
switchport access vlan 200
switchport mode access
spanning-tree portfast
!

!
interface Vlan1
no ip address
shutdown
!
interface Vlan100
description WAN
ip address 172.16.24.254 255.255.255.0
!
interface Vlan200
description LAN
ip address 10.0.0.2 255.255.255.0
!
ip default-gateway 10.0.0.1
no ip http server
no ip http secure-server
!
!
line con 0
privilege level 15
logging synchronous
login local
line vty 0 4
login local
transport input ssh
line vty 5 15
login local
transport input ssh
!
ntp server 10.195.198.2 prefer
end

Re: Latency issue on Aironet 1602i

patoberli — Thu, 06 Jun 2019 07:50:48 GMT

Might be a broken AP then. You have 10 years of hardware warranty on it, open a TAC to get it replaced.
But first change the speed to Auto on the AP. If you enforce 1000, you also must enforce 1000 on the other side (switch).

Re: Latency issue on Aironet 1602i

OroOrion — Thu, 06 Jun 2019 23:51:25 GMT

I have a basic cisco account. My AP has been purchased on amazon. I have doubt that I can this support from cisco.

Re: Latency issue on Aironet 1602i

patoberli — Fri, 07 Jun 2019 06:51:21 GMT

It probably depends on the country you life in.

In any case, I suggest you get a Smartnet contract for your AP and then the replacement should work.