WIFI

[smarshalek]

I have a Cisco 871 and have been using it to connect my laptop via wireless for about a year.

Now my laptop comes back with "Cannot connect to DHCP server" (my ISP serves up DHCP).

I have updated the laptop wifi driver, Windows is current, etc The wifi card passes all diagnostics.

I can see the laptop connecting to the router.

I have rebooted the router, cable modem, etc.

Is there something on the router that needs to be reconfigured or any other thoughts?

[Surendra BG]

n am not frustrated!! if so i would hv stopped responding !!

[smarshalek]

Hi!

Exact same error. No or limited connection, cannot find DHCP. Pulls a 169.x.x.x IP. Same error as before.

Althought I can see the laptop connected to the router with good signal strength.

[Brian Meade]

I believe your laptop is connecting to a rogue access point that has the same SSID.  Please create a new SSID on your router and connect to that instead.

[Surendra BG]

Can u try assigning a static IP address to the laptop and see if we are able to connect?? and also connect the same laptop to the wired port on the router and see if u are able to grab one from the DHCP

Looking foirward to hear from you!!

Regards

Surendra

[smarshalek]

Hi all,

The saga continues... yes, it works on the wire - tried that a while back. No static does work wireless either. All diags on laptop wifi pass AOK.

I ran diags from IE7 and the report said possible corrupt registry (WINSOCK).

Since the radio on the router is now UP, I was thinking laptop again, so I did a SYSTEM RESTORE from way back in June, well before any of this happened.

I could try a hard IP now as a test, but I am back to thinking router config issues. It would seem to be an issue with the Dot11Radio0 interface. I don't know, it is very strange. I have the start run up there if want to look again.

I was also able to remove the second occurance of SJMWLAN that I saw on my laptop, so now I only have one. It should be working.

Does anyone know where you set the channel number for the WIFI on the router?

800 series router question - the WLAN OK light is green but flashing, anyone know what that means??

Thanks

[Surendra BG]

show run from the router will help me to see the config issues..

Regards

Surendra

[smarshalek]

Hi

Well, the current show run is in this thread, but here you go.

Any idea why my WLAN LED is flashing?

Thanks.

Current configuration : 3957 bytes
!
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime localtime show-timezone
no service password-encryption
!
hostname SJMRouter
!
boot-start-marker
boot-end-marker
!
logging buffered 16384 informational
enable secret 5 $1$L595$KHbJKC0kS3Nb0h2u92ojf.
!
no aaa new-model
clock timezone EST -5
clock save interval 8
!
crypto pki trustpoint TP-self-signed-3636220250
enrollment selfsigned

subject-name cn=IOS-Self-Signed-Certificate-3636220250
revocation-check none
rsakeypair TP-self-signed-3636220250
!
!
crypto pki certificate chain TP-self-signed-3636220250
certificate self-signed 01
  3082024D 308201B6 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
  31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
  69666963 6174652D 33363336 32323032 3530301E 170D3032 30373139 30313133
  32385A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
  4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D33 36333632
  32303235 3030819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
  8100CF48 90F82435 DBE17A1F F5029D03 ED3B34CB 4ED603E2 6DAACB5E 12517DFD
  7CF44AC3 F69DD671 CF72F4D6 C736C7E3 E7D5297C 6F87EBD4 4F7255DF 09B30998
  7C40916A 325338F2 FF43717B 6D6B7598 186931A2 A6E97688 FC691B1C F9420E15
  92579F6E 89AB7D96 9A4F2380 310A3CD0 59C4C5DC E044ABE6 646E2992 0BDB18AC
  069B0203 010001A3 75307330 0F060355 1D130101 FF040530 030101FF 30200603
  551D1104 19301782 15534A4D 526F7574 65722E63 6F6D6361 73742E6E 6574301F
  0603551D 23041830 1680144F 249744C1 828F85DD F4ABD9F3 698EE514 9B0B3F30
  1D060355 1D0E0416 04144F24 9744C182 8F85DDF4 ABD9F369 8EE5149B 0B3F300D
  06092A86 4886F70D 01010405 00038181 00864127 E9D5E8C9 5C3AB322 33A336DB
  1C0CACDC E5138E1B AA194C60 0AA661C5 C9594EFA 686B96B9 EB1F4A19 B07D0F54

dot11 syslog
!
dot11 ssid SJMWLAN
!
ip cef
no ip dhcp use vrf connected
ip dhcp excluded-address 192.168.1.1 192.168.1.99
!
ip dhcp pool LANDHCP
   import all
   network 192.168.1.0 255.255.255.0
   default-router 192.168.1.1
   dns-server 68.87.77.134 68.87.72.134
   lease 3
!
!
ip domain name comcast.net
!
!
!
username Stan privilege 15 secret 5 $1$DRBH$OaRwYVeG.o5XZ2n8ThbpY/
!
!
archive
log config
  hidekeys
!
!
ip ssh version 2
!
!
!
interface Loopback0
no ip address
!
interface FastEthernet0
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface FastEthernet4
description INTERNET WAN PORT
ip address dhcp
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
!
interface Dot11Radio0
description WLAN Port
no ip address
!
ssid SJMWLAN
!
speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0
54.0
station-role root
!
interface Vlan1
description $ETH-SW-LAUNCH$$INTF-INFO-HWIC 4ESW$
ip address 192.168.1.1 255.255.255.0
ip virtual-reassembly
ip tcp adjust-mss 1452
!
ip default-gateway 76.112.248.1
ip forward-protocol nd
!
ip http server
ip http authentication local
ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
ip nat inside source list 1 interface FastEthernet4 overload
!
logging source-interface Loopback0
access-list 1 permit 192.168.1.0 0.0.0.255
no cdp run
!
!
!
control-plane
!
banner motd ^C
=====================================================
This is a secure router, unauthorized logins
are restricted.
=====================================================

^C
!
line con 0
exec-timeout 30 0
logging synchronous
login
no modem enable
line aux 0
line vty 0 4
access-class 23 in
exec-timeout 20 0
privilege level 15
  logging synchronous
login local
transport input telnet ssh
!
scheduler max-task-time 5000
end

[Surendra BG]

I kept on asking u did u configure the way i posted in my first post?? u said yes.. the wireless configuration is incorrect..

atleast now please get the console access to the router and issue the below command..

en

conf t

bridge irb

bridge 1 protocol ieee

bridge 1 route ip

interface Vlan1

no ip address 192.168.1.1 255.255.255.0

no ip nat inside

no ip virtual-reassembly

no ip tcp adjust-mss 1452

end

en

conf t

int bvi 1

description $ETH-SW-LAUNCH$$INTF-INFO-HWIC 4ESW$

ip address 192.168.1.1 255.255.255.0

ip nat inside

ip virtual-reassembly

ip tcp adjust-mss 1452

end

interface Vlan1

bridge-group 1

end

en

config t

dot11 ssid SJMWLAN

authentication open

vlan 1

guest-mode

end

en

conf t

int dot11 0

ssid SJMWLAN

no shut

end

en

conf t

int dot11 0.1

encapsulation dot1Q 1 native

bridge-group 1

end

wr

Lemme know if this helps!!

Regards

Surendra

[smarshalek]

Hi Surendra,

Sorry for all the confusion. I am still not sure how this got changed....

Do I need the entire list of commands inputed? I can just copy from your post.

Thank you so much

[smarshalek]

Hi Surendra,

We are having fun now!! I did a copy/paste of your commands into my router and then my whole LAN was down...

I DID make a copy of old one, so I tried to do a copy erase nvram:running-config system: - guess what- system: won't let you do that!

So I tried to just run the running-config manually. I kept getting errors for some reason. 2 hours later, I pulled an old linksys from a box and plugged that one in. The Cisco is DOA now.

Looks like it all works now on my old LAN (Linksys/Belkin).

I just have to re-re-re-re configure my Cisco again one of these days....