WRT54G dropping DHCP

Okay can some please give me some help, I have been running a WRT54G ver: 7.0 for abuot six weeks, so far the wireless network drops in and out when if feels like it. Now the DHCP side of things locks up after my wifes Vista laptop turns on and logs in. Also when scanning the wireless network the channel the router is broadcasting on which has been set to channel 6 goes from 1 to 11 at random...
Can anyone tell me if there is a firmware upgrade for my version 7, the site skips this version in the drop down box, or can offer some help please, failing that I am going to take a hammer to it!!
Many thaks Rob
UPDATE: Okay I have found the lastest firmware, which I have installed, I still have the problem of my DHCP not allocating IP's to hosts logging on! I have to power down the router and start again...
Any help out there?
Message Edited by helix1250 on 03-08-2009 02:20 PM

You must reset and re-configure the router after any firmware upgrade...If you have not resetted the router after the last firmware upgrade you must do it it now...
Press and hold the reset button for 30 seconds...Release the reset button...Unplug the power cable from your router, wait for 30 seconds and re-connect the power cable...Now re-configure your router...See if it resolves your concern...

Similar Messages

Wrt54gs drops connection

Forgive me if this has been addressed somewhere on here - i looked for a similar situation and couldnt find one--this is wordy, but hopefully it is useful info to solve the issue.
My future father-in-law runs a Sony Vaio with Windows XP with SP2, on Charter hi-speed internet through a Motorola cable modem. virus and firewall are from Trend Micro. Comp and modem are approx 5 years old. They just got a WRT54GS (v. 7 i believe) and had no problems setting it up right out of the gate - he used the LELA interface and was up and running in no time. all night it was fine. The problems started the next day, when they tried to get on the internet. Their homepage is MSN, and it wouldnt load up. they also tried to go to several of thier regularly visited websites, nothing worked. Eventually they gave up and disconnected the router, going directly through the old modem. that let them back online for about an hour, then it dropped the connection and they couldnt get it back. finally, they un-installed the LELA software and everything was back to normal.
My future F-I-L wanted to be able to work from home with his laptop, which was the whole reasone for the router, so this weekend i went over to set everything back up. We got the router re-installed, everything was communciating properly, and they were back in business. His laptop was at work, so i planned to go over today to get that connected. when i got there, they informed me that they couldnt get on the internet anymore. yesterday was fine, nobody tried to get on during the day, and this evening the problem started.
I checked connections (all good), un-hooked the router, and had the same non access problems, so i dumped the software as well. read a bit online and then re-installed everything, it wouldnt let me onto the internet, so i went into the router and changed the IP to 192.168.2.1. released the DHCP and renewed it, and everything was great.
Then tried to connect the laptop (ibm thinkpad, win XP SP2) had some troubles, mis-entered the WAP key, fixed that, and got on the internet with the laptop. Everything seemed good, but when he tried to access his work server (via LotusNotes) it wouldnt allow him in. something about the tcp/ip being denied.
The laptop is running PcAnywhere, which i have read may have issues. One thing i noticed is that LELA recognized the laptop twice. once as an actual computer with the right name, and once as an unknown device. unless i disable pcAnywhere and the IBM access connections software, the recognized laptop doesnt access the network, only the unknown device does.
1.) Is the re-assigned IP solution the best way to handle the dropped connection? did it even really solve the problem?
and
2.) is the laptop connection issue something with the router, or something with the different programs on the computer itself?

Hi,
I think u will need to upgraded the firmware for the router
click here to check the latest firmware
Network Security Administrator (EC Council)
linksysfirmwares.googlepages.com/

WRT54G v7 - DHCP Client List problem

Hi all,
I have the WRT54G v.7 - firmware ver.7.00.8.
erroneously i removed the wrong PC from the DHCP Client Table. /Status/Local Network
How i can restore the list adding back the pc to the list, as there is only he option to remove/delete?
One more question,
how many wireless clients/pcs can the router manage without any problem? ...
I noticed that when we are in 3 or 4 wireless clients the connection is very unstable, slow response, connection drops.
Is there anything i can do to improve this matter?
Ty for any tip,
Frluga
Solved!
Go to Solution.

Reboot your computer and it will receive a new IP address from the router.
Greetings from Northern Ontario, Canada

WRT54G - router/DHCP dies a few times a day

I have the same problem - WRT54G - all the machines at our place are macs with various flavors of OS X - mostly 10.4. Every few days - sometimes 4 times a day, the router stops working - basically the DHCP server stops giving out valid IP addresses and nobody - wired or wireless - can connect the the internet. It still appears to be connected the the net via the cable modem, its just the router part that is failing. This is very disappointing. Unplugging the WRT54G fixes it - but sometimes the same problem will happen 15 minutes later.
Message Edited by arvidtp on 08-03-2007 03:45 PM

oops! - the above post was meant to be a reply to another post about the same problem, but this forum mislead me about what I was doing!

WRT54G dropping network

Hi
After the post on http://forums.linksys.com/linksys/board/message?board.id=Wireless_Routers&thread.id=54303 I started up my software router and disable the DHCP on the Linksys router. Basically trying to operate it like a normal WAP54G.
The problem now is that 1-2 times a week the WIFI network goes dead and I must physically switch the power of the WRT54G V6 off and on to restore the connection. I am starting to wonder if CISCO is really that good as Linksys's name is linked to CISCO. Apart from the fact that I work for a company that are dealing solely in CISCO products.
The problems I have been experiencing with the WRT54G router seriously are undermining my trust in Linksys and Cisco routing capabilities. Especially since I am hearing people that are using the WRT54G with 3rd party firmware resolving most if not all of their issues. Is Linksys with the backing of CISCO not able to program their own products correctly that 3rd party firmware have to solve their problems? Unfortunately I apparently have the only version of the WRT54G that can not take 3rd party firmware, namely version 6. How can I suggest a Liksys router to my home network customers when I have so much problems with it myself.
True that the WAP54G has been working for me without a problem. But then again the WAP54G V3 is not a router. Just an simple access point. This let me think the LinkSYS lack the complete knowledge of how to make a router.
Ok... Done ranting... But still have to solve this problem. Payed money for a product that's been no joy since I bought it.

You can try to change the channel of the router:
http://kb.linksys.com/Linksys/ukp.aspx?pid=80&vw=1&articleid=4009
1,6,9,11 are good channels.
if you have tried that and it didn't work, you can try to upgrade the firmware of the router instead: http://kb.linksys.com/Linksys/ukp.aspx?pid=80&vw=1&articleid=4030

WMP54GS and WRT54GS = dropped connections

I have had the WMP54GS and WRT54GS setup for around 2 years now. I have version 2 of the router, and everything has been fine up until a couple weeks ago. Lately I have been getting randomly dropped from the router. I already have the latest firmware for the router, and have tried changing the channel, and the operating mode to G only, but nothing helps. Sometimes drops occur ever few minutes, sometimes they are so constant that I cant even connect at all. I will refresh my network list and the network will not show up for a few seconds, and then it will, so I will try and connect and it will say Unable to connect.
Sometimes when I refresh the network list and it will show my network like 4 times... like this
SSID
SSID 1
SSID 2
SSID 3
I have SSID broadcast off if that makes any difference...
I have no idea what is going on, is this a problem with the router or the network card? What should I do? thanksMessage Edited by jls1986 on 05-03-200709:38 AM

First of all, give your network a new unique SSID. Do not use "linksys". If you are using "linksys" you may be trying to connect to your neighbor's router. Also, do not use your old SSID. Also set "SSID Broadcast" to "enabled". This will help your computer find and lock on to your router's signal.
After you have completed the above stuff, then go into your computer, to your "Preferred Networks" (sometimes called "Profiles" ) and delete all networks named "linksys", also delete all entries with your old SSID. While you are there, delete any network that you don't recognize, or that you no longer use. Add your new network with your new SSID, encryption method (if any), and key (if any). Reboot your modem, router, and computer. Then try to connect to your new network. Once you have connected, return to "Preferred networks" and set your computer to connect to your new SSID automatically. If you have an option that says, "Connect to any available network", turn it off.
If you are running any peer-to-peer (P2P) software (BitTorrent, Ares, etc.), this is known to cause disconnection problems. Go into the P2P software and reduce the number of connections that the software can make.
Poor wireless connections are often caused by radio interference from other 2.4 GHz devices. This includes wireless phones, wireless baby monitors, Bluetooth (including Bluetooth game controllers), microwave ovens, wireless mice and keyboards, and your neighbor's wireless network. Even some 5+ GHz phones also use the 2.4 Ghz band. Unplug these devices, and see if that corrects your problem.
In your router, try a different channel. There are 11 channels in the 2.4 GHz band. Usually channel 1, 6, or 11 works best. Check out your neighbors, and see what channel they are using. Because the channels overlap one another, try to stay at least +5 or -5 channels from your strongest neighbors. For example, if you have a strong neighbor on channel 9, try any channel 1 through 4.
Hope this helps.
Message Edited by toomanydonuts on 05-04-200705:02 AM
Message Edited by toomanydonuts on 05-04-200705:05 AM

WRT54G drops connection

Hi everybody.
I just got a WRT54G router and installed it right away. I use an iMac (wired) and an iBook G4 (wireless). At the beginning it was working well, but after about an hour using it the connection dropped.
I restarted the router, after this it worked again, but after a few minutes the connection dropped again.
This happens regullary and , when it does, all connections drop. As the wireless and wired connections.
It'll be great if someone could help me..
Kind Regards
Daniel D.

My question is does anyone know if Linksys are going to fix this? I am not inclined to do a fix that might be undone by Linksys in the near future. I agree that if it works and Linksys doesn't fix this I will have no choice.
Anyone heard a response from the company? Seems to have occurred right as they released the latest version 8 of this router I noticed.

Wrt54g v7 DHCP does not work on *some* winXP machines with WEP key enabled

HI,
I enabled WEP encryption in an existing network yesterday.
Out of the 10 machines on the network, all WinXP & 1 Kubuntu, 3 XP machines can not get an IP address from the DHCP server. They can happily connect with a fixed IP adresss. All machines are of different makes, 2 of them with XPSP3, different wireless hardware cards.
The firmware is 7.001, i read about 7.004 and even 7.2 on other sites than this one. (but can only find 7.2 as a download)
I am in Juba, Sudan, so cant really go to the shop and buy a new one when I upload the wrong firmware.
Does anyone have a clue what I can do, except removing the 'security' from the router that is connected to a 500USD/Month satelite link we dont want to share with the neighbours?
Rgds,
Reinier
Message Edited by reinier on 01-14-2009 10:07 AM

Click Download and save the latest firmware available for WRT54GS ver 7.0 router...Follow these steps to upgrade the firmware on the device: -
Open an Internet Explorer browser page.In the address bar type - 192.168.1.1
Leave the username blank & in password use admin in lower case...
Click on the 'Administration' tab- Then click on the 'Firmware Upgrade' sub tab- Here click on 'Browse' and browse the .bin firmware file and click on "Upgrade"...Wait for few seconds until it shows that "Upgrade is successful" After the firmware upgrade, click on "Reboot" and you will be returned back to the same page...

Wrt54g dropping out once or twice a day.. HELP PLEASE :( !!

I have a WRT54G that drops the internet connection once or twice a day, it only has three/four computers that connect to it, its secured, DCHP i think, and it is connected to the internet through a cable modem. There is a x-box hooked up directly to it as well (wired). The computers are always connected to it when it doesnt work it just wont transmit any information or just plain drops out, if i unplug it and plug it back in it goes fine for awhile. It almost seems that it dropps out more when my roomates are running ares transfering files. What is causing this/what can i do to fix it? THANKS

Hey! this site could help you upgrade your firmware! just try this one..www.linksys.com/easy..good luck!

WRT54g router DHCP problems (I think)

I just got a wrt54g wireless router for my organization hooked it up and started having problems. I set the router to use DHCP and *tried* to set the “Maximum Number of DHCP Users:” to 15 and clicked “Save Settings” but when I went back to that screen it would be back at the default (5), I have since tried to change it many more times and no matter what number I pick (2-230) it still shows up as 5. Anyway. 1st I connected my XP notebook and was able to access the internet (specifying that my computer obtain the IP address automatically) Next I connected my colleague’s vista notebook and he could access the internet. (specifying that his computer obtain the IP address automatically) Next I connected another colleague’s xp desktop (specifying that my computer obtain the IP address automatically) *Next* I tried another colleague’s XP notebook computer and started having problems. I specified that it should obtain the IP address automatically but it would not and kept getting a 169.254.x.x address instead of one like 192.168.1.x (it also keeps showing a subnet mask different from the one I specified on the router). I went back to my notebook (which had been working fine) and discovered that now (without my making any changes to my notebook) I am having the same problem. I am now having the above problem (computers not receiving addresses automatically) with all but one or two computers (the vista notebook continues to work). Someone on usenet suggested I try putting in an IP address manually so I did and it worked but #1 I need more than 5 computers to be attached at one time (the router refuses to accept any number higher than 5 [though I can specify *less* than 5, it will for example remember 4 and 3]) #2 The router should be assigning IP addresses to all the computers, I shouldn’t have to be putting in the addresses manually.

Did you try to flash/reflash the routers firmware? Try that and reset the factory default settings and cycle the power. Then reconfigure the router and let us know if it continues to do that.
Richard Aichner (Ikester)

WLC Dropping DHCP Discover Packets

Hello
I have following setup:
[Notebook]----wired connection----[Cisco Lynksys wlan ethernet bridge] )))))) wirelessConnection ((((( [AP]-----[switch]-----[Router]-----[WLC]
I use a seperat DHCP Server. so on the WLC the DHCP Proxy is disabled.
what i know is - the WLC should receive and forrward he DHCP Discover to the layer3 interface on the router, where the ip-Helper is configured. From there it should go to the DHCP Server.
BUT - here comes the problem -
The WLC Dropps the DHCP Discover.
*DHCP Socket Task: May 05 16:06:26.153: 88:ae:1d:b7:b7:c2 DHCP received op BOOTREQUEST (1) (len 308,vlan 253, port 13, encap 0xec03)
*DHCP Socket Task: May 05 16:06:26.153: 88:ae:1d:b7:b7:c2 DHCP option len (including the magic cookie) 72
*DHCP Socket Task: May 05 16:06:26.153: 88:ae:1d:b7:b7:c2 DHCP option: message type = DHCP DISCOVER
*DHCP Socket Task: May 05 16:06:26.153: 88:ae:1d:b7:b7:c2 DHCP option: 61 (len 7) - skipping
*DHCP Socket Task: May 05 16:06:26.153: 88:ae:1d:b7:b7:c2 DHCP option: hostname = Test (len 4)
*DHCP Socket Task: May 05 16:06:26.153: 88:ae:1d:b7:b7:c2 DHCP option: vendor class id = MSFT 5.0 (len 8)
*DHCP Socket Task: May 05 16:06:26.153: 88:ae:1d:b7:b7:c2 DHCP option: 55 (len 13) - skipping
*DHCP Socket Task: May 05 16:06:26.153: 88:ae:1d:b7:b7:c2 DHCP options end, len 72, actual 64
*DHCP Socket Task: May 05 16:06:26.153: 88:ae:1d:b7:b7:c2 DHCP dropping packet (no mscb) found - (giaddr 0.0.0.0, pktInfo->srcPort 68, op: 'BOOTREQUEST')
Can anyone tell me why this happens?

HI Chris,
First enable DHCP Proxy on WLC.
(Cisco Controller) >config dhcp proxy enable
and make sure that For DHCP proxy to work, a primary DHCP server must be configured on each controller interface that requires DHCP services.
To kow more about DHCO on WLC:
http://www.cisco.com/c/en/us/support/docs/wireless/4400-series-wireless-lan-controllers/110865-dhcp-wlc.html#Internal-DHCP
Regards
Dont forget to rate helpful posts

IP Source Guard dropping DHCP Offers

Hello,
I have a problem with IP Source Guard on a Catalyst 3750 switch running 12.2.40SE IOS.
I've configured port-security, DHCP Snooping and DAI and they all work as expected.
However when it comes to IP Source Guard, things don't work as I expected... when a DHCP lease expires because a user has switched their machine off for a number of days, the Snooping binding is removed and IP source Guard then blocks the port. When the user switches the PC on again, I can see the DHCP request and a reply gets generated but the offer gets dropped because there is no Snooping binding!
One thing to note is that the DHCP server is on the switch itself and not on a port.
Does anyone know if this is the correct behaviour???
Thanks.

Hi Istvan,
Thanks for your advice: I have that config in place. I'm using port security, dhcp snooping, dynamic arp inspection and ip source guard - proper switch security ;-)
I've spent the last 2 days figuring out what's happening and I've found that it's a bug in 12.2.40SE. I've tried the same config using 12.2.35SE2, 12.2.44SE and 12.2.44SE1 and they all behave as expected.
Here is the relevant config:
ip dhcp excluded-address 172.21.1.254
ip dhcp pool Users
network 172.21.1.0 255.255.255.0
default-router 172.21.1.254
lease 0 0 5
ip dhcp snooping vlan 2
ip dhcp snooping database tftp://172.21.1.250/test-sw-dhcpDB
ip dhcp snooping
ip arp inspection vlan 2
interface GigabitEthernet1/0/4
description Laptop
switchport access vlan 2
switchport mode access
switchport port-security maximum 2
switchport port-security
switchport port-security aging time 2
switchport port-security aging type inactivity
spanning-tree portfast
spanning-tree bpduguard enable
ip verify source port-security
ip dhcp snooping limit rate 10
interface Vlan2
ip address 172.21.1.254 255.255.255.0
no ip redirects
no ip unreachables
no ip proxy-arp
The lease time is so long for testing purposes; and option 82 is enabled by default so the command is not displayed in the running config.
Thanks, Steve

WRT54G WAN DHCP issue

my WRT54G was working fine but from last last 8 days
i am using my router on a cable with a dhcp server
but from the last 8 days it is not accuring DHCP
in the status the ip is 0.0.0.0
but if i plug the same cable on my system it works fine but on router there is problem. i have also cloned my systems MAC address on router, reset the router, checked the cables but ended up with nothing
the private lan of router is working fine i connect my notebook and PC with and it all works fine but the router does not accuire an ip address from the cable

Hardwire your computer to the modem and check if it's online. If it is, isolate your computer and your router. Hard reset the router for 30 seconds then powercycled for 30 seconds. Access the router's setup page, configure the wireless settings first. Then under the security tab, uncheck the block anonymous internet/wan requests. Then clone the MAC Address, and lastly, change your router's local IP Address to 10.10.10.1 and save the settings. It will show up as page cannot be displayed OR asks you to release/renew your ip. Power-off your modem and router. Connect the modem to the router's internet port. Boot up the modem first and wait for the cable-link/online/cable light to go steady. Then power on your router, wait for 30 seconds and then access your router's setup page using the 10.10.10.1 number and check for the status. You should have an IP address now.
IF all these fail, upgrade your router's firmware first then repeat the above process. Make sure to hard reset your router after upgrading the firmware.

WRT54G dropping connection

i have a WRT54G router and it keeps dropping the connection to my wireless desktop. My signal strength is very good. Ive power cycled everything and still no luck. It tends to drop every hour or so.

Have you seen...
Linksys Easy Answer 4029, applies to WRT54G
Encountering Intermittent Wireless Connections Using a Linksys Router
Linksys Easy Answer 4031, applies to WRT54G
Encountering Intermittent Wired Connections Using a Linksys Router
Linksys Easy Answer 3765, applies to WRT54G
Setting-Up an Xbox™ on a Linksys Router
Hope this helps,
Lilla
Message Edited by Lilla on 04-28-200710:25 PM
Westell 6100 modem/router; Linksys WRT54GL v1.1 router firmware 4.30.9; Linksys WPC54G v2 Notebook Card; CenturyTel DSL using PPPoE

WRT54G dropping me and my static IP

I have a WRT54G and it keeps dropping me. I have assigned my PC a static IP of 192.168.1.51 and my gateway 192.168.1.1. Every once in a while my internet will slow down or stop working. Any ideas?

What is the exact model number of your router? You might need to update the firmware of your router.

WRT54G dropping DHCP

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