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New Contributor

Laptops jumping from AP to AP

I have a Adtran wireless setup using 2 NV160s and 2 NV150s with a NV1335 being used as the Access controller. The 1335 is not being used as a router or a switch. That functionality along with PoE was replaced with another device. The 1335 is strictly the access controller.  The two NV160s are about 30 feet away from one another. I have a couple of laptops that are sitting in the middle of these APs and are constantly going back and forth between the APs, even though the laptops are not physically moving closer to one or another. This seems to be causing connectivity issue

What can I do to the Wi-Fi setup that would keep the laptops better connected with one AP or another. I can post the config or the results of any debugs if you think it might help with the answer or suggestion.

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2 Replies
Highlighted
New Contributor

Re: Laptops jumping from AP to AP

Laptops switching between APs 3 and 4 which are the 160s.

!

!

! ADTRAN, Inc. OS version R11.5.0.E

! Boot ROM version 15.01.B1

! Platform: NetVanta 1335, part number 1700515E2

! Serial number LBADTN1140AQ286

!

!

hostname "VNA AllenBrook"

!

clock timezone -5-Eastern-Time

!

ip subnet-zero

ip classless

ip routing

!

!

domain-proxy

name-server 192.168.11.88 192.168.11.63

!

!

no ip route-cache express

!

no auto-config

!

event-history on

no logging forwarding

no logging email

!

no service password-encryption

!

!

no ip firewall alg msn

no ip firewall alg mszone

no ip firewall alg h323

!

!

!

dot11ap access-point-control

!

!

vlan 1

  name "Default"

!

!

interface switchport 0/1

  no shutdown

  switchport mode trunk

  no lldp send-and-receive

!

interface switchport 0/2

  no shutdown

  switchport mode trunk

!

interface switchport 0/3

  no shutdown

  switchport mode trunk

!

interface switchport 0/4

  no shutdown

  switchport mode trunk

!

interface switchport 0/5

  no shutdown

  switchport mode trunk

!

interface switchport 0/6

  no shutdown

  switchport mode trunk

!

interface switchport 0/7

  no shutdown

  switchport mode trunk

!

interface switchport 0/8

  no shutdown

  switchport mode trunk

!

interface switchport 0/9

  no shutdown

  switchport mode trunk

!

interface switchport 0/10

  no shutdown

  switchport mode trunk

!

interface switchport 0/11

  no shutdown

  switchport mode trunk

!

interface switchport 0/12

  no shutdown

  switchport mode trunk

!

interface switchport 0/13

  no shutdown

  switchport mode trunk

!

interface switchport 0/14

  no shutdown

  switchport mode trunk

!

interface switchport 0/15

  no shutdown

  switchport mode trunk

!

interface switchport 0/16

  no shutdown

  switchport mode trunk

!

interface switchport 0/17

  no shutdown

  switchport mode trunk

!

interface switchport 0/18

  no shutdown

  switchport mode trunk

!

interface switchport 0/19

  no shutdown

  switchport mode trunk

!

interface switchport 0/20

  no shutdown

  switchport mode trunk

!

interface switchport 0/21

  no shutdown

  switchport mode trunk

!

interface switchport 0/22

  no shutdown

  switchport mode trunk

!

interface switchport 0/23

  no shutdown

  switchport mode trunk

!

interface switchport 0/24

  no shutdown

  switchport mode trunk

!

!

interface gigabit-switchport 0/1

  no shutdown

  switchport mode trunk

  no lldp send-and-receive

!

interface gigabit-switchport 0/2

  no shutdown

  switchport mode trunk

!

!

!

interface vlan 1

  ip address  10.1.151.253  255.255.255.0

  no rtp quality-monitoring

  no ip route-cache express

  no shutdown

!

!

interface t1 1/1

  shutdown

!

!

interface dot11ap 1 ap-type nv150

  access-point mac-address 00:A0:C8:69:41:E9

  name WestWing

  location West wing in ceiling

  ip address 10.1.151.252 255.255.255.0

  ip default-gateway 10.1.151.254

  event-history on

  event-history priority 6

!

!

interface dot11ap 1/1 radio-type 802.11bg

  inactivity-timeout max 99

  no shutdown

!

!

interface dot11ap 1/1.1

  description VNAGLOBAL

  ssid broadcast-mode "VNAGLOBAL"

  security mode wpa aes-ccmp eap

  security wpa group-key

  radius-server host 192.168.11.3 key WapAccexx

  no shutdown

!

!

interface dot11ap 1/2 radio-type 802.11a

  no shutdown

!

!

interface dot11ap 1/2.1

  description VNAGLOBAL

  ssid broadcast-mode "VNAGLOBAL"

  security mode wpa aes-ccmp eap

  security wpa group-key

  radius-server host 192.168.11.3 key WapAccexx

  no shutdown

!

!

interface dot11ap 2 ap-type nv150

  access-point mac-address 00:A0:C8:69:54:37

  name Penguin

  location South HAll

  ip address 10.1.151.251 255.255.255.0

  ip default-gateway 10.1.151.254

  event-history on

  event-history priority 6

!

!

interface dot11ap 2/1 radio-type 802.11bg

  inactivity-timeout max 99

  no shutdown

!

!

interface dot11ap 2/1.1

  description VNAGLOBAL

  ssid broadcast-mode "VNAGLOBAL"

  security mode wpa aes-ccmp eap

  security wpa group-key

  radius-server host 192.168.11.3 key WapAccexx

  vap-reference "dot11ap 1/1.1"

  no shutdown

!

!

interface dot11ap 2/2 radio-type 802.11a

  no shutdown

!

!

interface dot11ap 2/2.1

  description VNAGLOBAL

  ssid broadcast-mode "VNAGLOBAL"

  security mode wpa aes-ccmp eap

  security wpa group-key

  radius-server host 192.168.11.3 key WapAccexx

  vap-reference "dot11ap 1/2.1"

  no shutdown

!

!

interface dot11ap 3 ap-type nv16x

  access-point mac-address 00:19:92:16:0A:20

  name Elephant

  location Outside Nurse's office

  ip address 10.1.151.250 255.255.255.0

  ip default-gateway 10.1.151.254

!

!

interface dot11ap 3/1 radio-type 802.11bg

  inactivity-timeout max 99

  no shutdown

!

!

interface dot11ap 3/1.1

  description VNAGLOBAL

  ssid broadcast-mode "VNAGLOBAL"

  client-separation

  security mode wpa aes-ccmp eap

  radius-server host 192.168.11.3 key WapAccexx

  no shutdown

!

!

interface dot11ap 3/2 radio-type 802.11a

  inactivity-timeout max 99

  no shutdown

!

!

interface dot11ap 3/2.1

  description VNAGLOBAL

  ssid broadcast-mode "VNAGLOBAL"

  security mode wpa aes-ccmp eap

  security wpa group-key

  radius-server host 192.168.11.3 key WapAccexx

  no shutdown

!

!

interface dot11ap 4 ap-type nv16x

  access-point mac-address 00:19:92:16:18:E0

  name Conference

  location North Side of building

  ip address 10.1.151.249 255.255.255.0

  ip default-gateway 10.1.151.254

  logging forwarding priority-level debug

!

!

interface dot11ap 4/1 radio-type 802.11bg

  inactivity-timeout max 99

  no shutdown

!

!

interface dot11ap 4/1.1

  description VNAGLOBAL

  ssid broadcast-mode "VNAGLOBAL"

  security mode wpa aes-ccmp eap

  security wpa group-key

  radius-server host 192.168.11.3 key WapAccexx

  no shutdown

!

!

interface dot11ap 4/2 radio-type 802.11a

  inactivity-timeout max 99

  no shutdown

!

!

interface dot11ap 4/2.1

  description VNAGLOBAL

  ssid broadcast-mode "VNAGLOBAL"

  security mode wpa aes-ccmp eap

  security wpa group-key

  radius-server host 192.168.11.3 key WapAccexx

  no shutdown

!

!

ip access-list standard Matchall

  remark Internet Connection Sharing

  permit any

!

!

ip access-list extended self

  remark Traffic to NetVanta

  permit ip any  any     log

!

!

!

!

ip route 0.0.0.0 0.0.0.0 10.1.151.254

!

tftp server

no tftp server overwrite

http server

http session-timeout 4200

http secure-server

no snmp agent

no ip ftp server

ip ftp server default-filesystem flash

no ip scp server

no ip sntp server

!

line con 0

  login

!

line telnet 0 4

  login local-userlist

  no shutdown

line ssh 0 4

  login local-userlist

  no shutdown

!

sntp server time-a.nist.gov version 3

!

!

!

!

!

!

end

Highlighted
New Contributor II

Re: Laptops jumping from AP to AP

It seems to me that you have the two NV160 access points too close together - 30 ft seems a pretty short distance and I suspect you have a whole lot of overlap in the coverage areas of the two.  You may try to download (at no cost) INSSIDER and load it onto a laptop and check the coverage of the 2 NV160 access points to see the amount of overlap.  From that information, you may wish to do some AP relocation.

I also assume they are not on the same channels and you are aware that in the 2.4 GHz space, your choices are only channels 1, 6, and 11 in the US.