WRT54GS router loses WAN DNS

I have a WRT54GS router that loses the WAN DNS from time to time. I go into the router and check the router status and the IP is set to a LAN IP address and no DNS entry. I release and renew the DNS and it picks up the WAN IP and DNS OK. This happens time to time.
At first I was powering everything down and then on – the router would NOT pick up the ISP DNS – always stayed with the LAN IP settings and no DNS. If I put a computer directly to the cable modem it worked OK.
Later I discovered if I went into the router status – releasing and renew would pick up the ISP DNS and stay until the next event.
I called Linksys and was advised to upgrade the firmware which seemed to help but this reoccurred again.
Any thoughts? Should I replace the router?
Linksys WRT54GS
v7.2.05 build 002, Jan. 9, 2008
(Mod note: Edited for guideline compliance.)
Message Edited by kent07 on 12-30-2008 04:37 PM

I have reloaded the firmware several times and with the support guy on live chat followed his instructions for a HARD RESET - the problem happened again after all that.
I see through web searches that a lot of people have the same issue but never really report a solution - just a lot of repeat suggestions.
Time will tell.
(Mod note: Edited due to non-compliance of forums guidelines.)
Message Edited by OnnagokorO on 12-31-2008 04:31 PM

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Setting a static IP shouldn't be a problem, since setting the static IP is done on the computer. So why am I having such a problem?? Let me tell a little about my setup.
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Before doing this, In Windows go to run and type CMD hit enter. In the command prompt, type ipconfig /all and record your DNS server/servers if more than one. Not getting the proper DNS server information, will prevent you from going to websites like linksys.com by typing linksys.com in the address bar, instead you would have to know the IP of linksys.com to browse the page, not very user friendly and I can barely remember my phone number, let alone IP addresses of all the sites I go.
Log into your router. Leave your WAN settings alone, since that will determine your settings for the connection to the internet. Now configure your Network settings on the router. The 192.168.1.1 or 192.168.2.1 for the ip and leave the subnet mask 255.255.255.0 as is. Disable DHCP on the router. DHCP is a service that the router will use to issue out IP addresses automatically. This is the complete opposite of what you are trying to do with a static connection. Once these settings have been changed, you will need to configure the connection on the PC and any other connecting device to the router via wired or wireless since DHCP is now disabled. If not, you will just be stuck all day while the network adapter trys to get a network address and DHCP has a heart attack.
Configure your network adapters. Assign the IP address. If you used 192.168.1.1 then the IP will need to be 192.168.1.2 through 192.168.1.254 with a subnet mask of 255.255.255.0 or if you used 192.168.2.1 the IP will need to be 192.168.2.2 through 192.168.2.254 with subnet mask of 255.255.255.0 and enter the DNS server information as recorded from earlier. Default gateway will be whatever the IP address of the router you configured. 192.168.1.1 or 192.168.2.1 etc etc etc.
Just remember to not duplicate any IP address when configuring other devices and all should work well.
This worked fine for me earlier today when I needed a static connection.

WRT54G Router - Internet connection issues using the Ipod touch

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Message Edited by jmaxey0122 on 12-16-2009 05:27 AM

You might be facing the problem, because the Ipod and your Desktop computer must be having the same IP address thats the reason whenever your IPod is connected to your Network, your Desktop must be getting disconnected. Check the IP address of your IPOD and of your Desktop Computer.
First thing which you need to check, if the Physical connections are done properly. Connect the Modem to the Internet Port of the Linksys Router and then Connect the computer to the LAN Port No.1. On your Desktop computer login to the setup page of your Router and click on the Status tab and check "Internet IP address"
If required you can Re-Set your Router and Re-configure all the settings on your Router from the scratch.

WRT54G router IP address is the same as my modem's IP address. how to change the routers IP address?

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Hello! I solved my problem but I find the solution so weird. After changing the routers IP address to 192.168.1.2, instead of plugging the modem cable on the Internet port of the router, I plugged it in one of the WAN ports. Presto, it worked. Even my wireless connection is also working.

Need Help Streaming Video From Web Server Built Into Application - Linksys WRT54g Router

Very much appreciate any help getting streaming video feed from web server built into video application to work properly using port forwarding on my Linksys WRT54g wireless router.
Here is the situation:
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When I open a browser (Explorer or Firefox) on the PC running the video camera application with embedded web server, I am able to connect to the video application's web server by going to the dyndns address linked to the machine running the video application. The video application's web server is set to use the dyndns address. That's the good news. The bad news is that I can't connect to the video application's web server from any machine that connects to the internet that uses a router other than the router used by the PC running the video application. I am only able to connect to the streaming video from the application's web server only on machines that connect to the internet using the same (home) router used by the PC that is running the video application.
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The firewall log can be configured on the third tab in the window for the firewall settings, where you can turn the firewall on and off completely.
From your tests, though, it does not seem to be the firewall. However, to be sure, it would be good to check the log. It will help to eliminate the firewall as the culprit and you may find it handy in the future, too. ;-) Just don't forget to turn the log off again after you are done because it may cause some performance penalty on your system while on.
From what you write, it seems as if I should give a little networking background on the ip addresses you'll see. Your setup is (or should be) a modem connected to the WAN/Internet port of the WRT. The computer is connected into a LAN port of the WRT.
Your router has two IP addresses (that's what makes it a router): a WAN address and a LAN address. The WAN address is the address assigned by the ISP. It is a normal internet IP address. Everyone is able to send packets to this IP address. The WAN address is the one reported by whatismyipaddress.com, it should be listed in the dyndns record and it is the address that your router shows on the Status page. It's the public IP address of your router. Dyndns maps your dyndns.org name to that IP address.
Your router also has an IP address on the LAN side. You can configure it to be whatever you want. The default is 192.168.1.1 with netmask 255.255.255.0 and it is better to leave it like that or at least inside the network 192.168.*.*. 192.168 is a special, reserved IP address range for private networks. Basically, routers in the internet are not supposed to forward addresses in this range. That makes them suitable for private LANs as the packets never can get anywhere. Most people using Linksys routers have there LAN in 192.168.1.*.
The router acts as gateway, which means it forwards packets from PCs in the LAN to the internet and back. As all your PCs in your LAN share a single WAN IP address, the gateway does address translation (NAT). This works only in one direction: from the inside to the outside. The router remembers when a PC in your LAN sends something out and accepts the responses in and sending them back to the PC. If something comes in from the internet which cannot be associated with a ongoing communication the packet is dropped unless you use port forwarding.
All computers in your LAN either have a static IP address assigned or use DHCP to get it automatically. The router has a DHCP server as well which gives out IP address from 192.168.1.100-149 if not changed. With a router with default settings static IP addresses can be in the range of 192.168.1.2-99 and 150-254.
ipconfig /all reports your IP address in your LAN, i.e. an address 192.168.1.*. The gateway in this output should be 192.168.1.1 which is your router. And packet no in the LAN address range 192.168.1.* is send to the router which forwards the packets into the internet.
An address 192.168.1.* should not appear as internet address in the Status page of the router nor should it appear at dyndns.
Port forwarding is used to operate a server in the LAN. By default, a server in the LAN cannot be reached from the internet. You have to configure port forwarding for this. You configure that traffic bound for a specific port (e.g. TCP port 80 for http) on your WAN IP address is forwarded to the same port on a specific LAN IP address. If your server runs on 192.168.1.50 than traffic to your WAN IP address port 80 is forwarded to 192.168.1.50 port 80. That way your HTTP server can be reached from the internet. As you can only configure a fixed IP address in port forwarding it is recommended that the server uses a static IP address and not DHCP as in the latter case the IP address may change over time...
O.K. so much for networking. I hope that makes things a little clearer and you can verify that your setup is how it is intended to be.
I suggest the following: on the router's security page there is an option to block WAN requests. Remove the check if it is set (meaning: do not block). After you did that change you should be able to ping your WAN address (e.g. ping xxxx.dyndns.org) from the internet. That way we know that it is on the correct address.
Also on the Administration page make sure that remote management is disabled (should be like that per default) or that the management port is NOT 80 but for example 8080. What is your your UPnP settings on the same page?
O.K. that should be enough for the moment...

Cannot connect Mac ibook to WRT54G router

I have a WRT54G router connected to my desktop. My Dell laptop connects without any problems. Now I am also trying to connect a Mac ibook to the same router. The Airport reads the connection, but it does not accept any passwords. The dropdown of connection options includes Personal WPA, Personal WPA2, Enterprise WPA, and others, but none of them accept my password. I have read some threads about downgrading, but I am concerned that if I make changes to adapt for the Mac, I might lose my Dell connectivity.

Use Firefox or Internet Explorer. Open http://192.168.1.1/ (if you have not changed the LAN IP address of the WRT54G), enter your password (default "admin" ) and you should see the web interface of the router. Click on Wireless. Post the current settings you have there. Then click on Wireless Security and also post the current settings you find there. That will tell us how you have set up the wireless on the router and then we'll see how you correctly set up the iBook for this.
Message Edited by gv on 06-04-2008 01:46 PM

No signal through linksys wrt54g router

my internet signal is no longer going through the wrt54g router - don;t know why.
i.e. no wireless handheld or computer and no ethernet when going through the router.
If I bypass the router the internet is fine, with the ethernet cable
I tried shutting everything down with power disconnect for periods of time, then bring everything back to power.
settings in linksys setup 192.168.1.1 look ok as far as I know; signal lights on router and modem are normal; settings in mac system prefs look normal also.
Suggestions?
Thank you

hardware WRT54G v2.2
Config and firmware:
Firmware Version:
v4.21.1, Nov. 6, 2006
<script type="text/javascript">// Capture(stacontent.curtime) // </script> Current Time:
<script type="text/javascript">// localtime(); // </script> Wed, 27 Oct 2010 12:53:48
<script type="text/javascript">// Capture(share.macaddr) // </script> MAC Address:
00:13:10:0F:CB:14
<script type="text/javascript">// Capture(share.routename) // </script> Router Name:
WRT54GL
<script type="text/javascript">// Capture(share.hostname) // </script> Host Name:
homenet
<script type="text/javascript">// Capture(share.domainname) // </script> Domain Name:
<script type="text/javascript">// if("" != "") { document.write(""); } else { document.write(""); } // </script>
<script type="text/javascript">// Capture(share.internet) // </script> Internet
<script type="text/javascript">// Capture(share.cfgtype) // </script> Configuration Type
<script type="text/javascript">// Capture(stacontent.logtype) // </script> Login Type:
<script type="text/javascript">// Capture(setupcontent.dhcp) // </script> Automatic Configuration - DHCP
<script type="text/javascript">// var status1 = "Disable"; var status2 = " "; if(status1 == "Status") status1 = bmenu.statu; if(status2 == "Connecting") status2 = hstatrouter2.connecting; else if(status2 == "Disconnected") status2 = hstatrouter2.disconnected; else if(status2 == "Connected") status2 = stacontent.conn; document.write(status2); document.write("  "); var but_arg = ""; var wan_proto = "dhcp"; var but_type = ""; if(but_arg == "Connect") but_value = stacontent.connect; else if(but_arg == "Disconnect") but_value = hstatrouter2.disconnect; but_type = but_arg +"_" + wan_proto; document.write("<INPUT type=button value='"+but_value+"' onClick=Connect(this.form,'"+but_type+"')>"); // </script>
-->
<script type="text/javascript">// Capture(share.ipaddr) // </script> IP Address:
192.168.15.2
<script type="text/javascript">// Capture(share.submask) // </script> Subnet Mask:
255.255.255.0
<script type="text/javascript">// Capture(share.defgateway) // </script> Default Gateway:
192.168.15.1
<script type="text/javascript">// Capture(share.dns) // </script> DNS 1:
209.18.47.61
<script type="text/javascript">// Capture(share.dns) // </script> DNS 2:
209.18.47.62
<script type="text/javascript">// Capture(share.dns) // </script> DNS 3:
<script type="text/javascript">// Capture(share.mtu) // </script> MTU:
1500
ifconfig:
Last login: Mon Apr 26 19:42:20 on console
Rick-Brakemans-macbook-5:~ Desktop$ ifconfig
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384
   inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
   inet 127.0.0.1 netmask 0xff000000
   inet6 ::1 prefixlen 128
gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280
stf0: flags=0<> mtu 1280
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
   inet6 fe80::21e:c2ff:fe14:2031%en0 prefixlen 64 scopeid 0x4
   inet 192.168.1.100 netmask 0xffffff00 broadcast 192.168.1.255
   ether 00:1e:c2:14:20:31
   media: autoselect (100baseTX <full-duplex,flow-control>) status: active
   supported media: autoselect 10baseT/UTP <half-duplex> 10baseT/UTP <full-duplex> 10baseT/UTP <full-duplex,hw-loopback> 10baseT/UTP <full-duplex,flow-control> 100baseTX <half-duplex> 100baseTX <full-duplex> 100baseTX <full-duplex,hw-loopback> 100baseTX <full-duplex,flow-control> 1000baseT <full-duplex> 1000baseT <full-duplex,hw-loopback> 1000baseT <full-duplex,flow-control> none
en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
   ether 00:1e:c2:a8:1f:fc
   media: autoselect (<unknown type>) status: inactive
   supported media: autoselect
fw0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 2030
   lladdr 00:1f:5b:ff:fe:1b:2e:c8
   media: autoselect <full-duplex> status: inactive
   supported media: autoselect <full-duplex>
Rick-Brakemans-macbook-5:~ Desktop$
cat /etc/resolv.conf:
Rick-Brakemans-macbook-5:~ Desktop$ cat /etc/resolv.conf
nameserver 209.18.47.61
nameserver 209.18.47.62

Help w/ my Wrt54G router!

I have a WRT54G router and a PS3. When i go to test the connection the PS3 obtains the IP Address but when it gets to internet connection it says "An error occurred during communicationwith the server" "This is a DNS error" I have tried multiple numbers to try and get this connection to work but it seems impossible. Unfortunately this is the second time because my PS3 broke and they gave me back a brand new one. When I clikc the Linksys icon on my computer desktop and it shows the 3 tabs with My Network, Actions, and, Supports, I can't seems to find the DNs settings. Where are they? If anyone has had this problem please help Thnks.

You need to access router setup page usiing 192.168.1.1 .... click on Status .... it shows DNS numbers ..... under network settings ....
Use the same DNS numbers under PS3 settings ....
Power cycle the network .....
See if it works ....
Message Edited by castor on 07-30-2008 05:33 PM

MacBook Pro crashes my Linksys WRT54G router

I've seen this issue been mentioned as a post in another thread, but I wanted to open a post specifically about this.
When I connect wirelessly to my Linksys WRT54G v6 router (using no encryption), it eventually brings down my router (usually within 5-10 minutes) and becomes unresponsive. I can't access the web admin interface, and other computers connected to the router lose their internet connection as well.
I've tried the following:
- Upgraded the Linksys firmware to the latest version
- UP-to-date on Apple Software update (Mac OS X 10.4.8)
- Set the wireless beacon interval to 50
- Turned off the weather widget
- Set MTU lower
- Pinging a remote location every 8 seconds (using ping -i 8 www.google.com)
Anyone have a similar problem? Anyone found a solution?
MacBook Pro (Core 2 Duo 2.16 GHz) Mac OS X (10.4.8)

Well Zebra1, some of us are cost-conscious and have
existing setups at home we'd like to leverage.
I think that most of us on this message board would concur.
Maybe I'm just not worthy enough to join the
Apple-snob crowd because I can't blindly spend close
to $200 for something that can be had for less than
half the price (and already paid for)
This is my only gripe with these boards - folks seem to recommend the most expensive solution, and then slam those who recommend less expensive, but still practical, solutions (especially if they are non-Apple). Logically, it makes no sense, but the more expensive option seems to almost always be the one recommended.
Airport extreme base stations may be nice, but they are not without their problems (check the networking section on these boards); it's hard to justify the expense just to get a white box with an Apple logo on it, especially when functionally equivalent routers are available at 1/2 to 1/3 the price.
I'd hardly call Linksys a "two-bit" company. The WRT54G router is one of the most popular WiFi routers out there, and was rock-solid stable for many years. Apple should strive to make sure that their wireless products interoperate well with these devices, due to their popularity. Plus, a bit of a reality check here: even if a person gets an Airport Express base station at home, they won't have one at work, at school, at the coffee shop, etc.
When a $2000 laptop doesn't work with a wireless router that works with every PC laptop in the company, it isn't the router that gets criticized, it's the Mac.
As for alternatives, Apple is hardly the only solution; my D-Link DIR-625 works flawlessly with all of my computers, including my Macs, and I paid < $50 US for it. You need to add more than a USB port and Apple logo to justify that extra $150 US.

Dear All, I have currently buy a WRT54G router and would...

Dear All, I have currently buy a WRT54G router and would like to set it up remote desktop so that i can access the office system from my home.But after looking at the Port Forwarding in the Linksys,i do not know how to set as Linksys can only accept IP address start from 192.168.xxx.xxx while my house Prolink router is configure with IP address 10.0.xxx.xxx. The difference in IP address has make me confuse on to how should i go ahead with the settings. Hopefully anyone can help. Thanks a lot JQ

The WRT54G is connected to subnets: one on the internet port and one on the LAN side with the numbered ports and the wireless.
The LAN side uses 192.168.1.* by default. The router uses 192.168.1.1 on this side. This side is where you connect your computers. The connected computers can get addresses by the DHCP server on the WRT. The default address pool of the DHCP server is 192.168.1.100-149.
The internet/WAN port subnet is whatever the next router or your ISP has defined. The router gets a IP address assigned on this side, usually it is the public IP address provided by your ISP if the router is connected directly to the internet. If there is another router then the address of the WRT on the internet/WAN port is usually assigned by this router.
Port forwarding forwards a specific port number on the WAN IP address to a specific computer inside your LAN. Therefore the destination IP address of the router is always the LAN subnet 192.168.1.* as that is the subnet which is used on the LAN side.
If the internet/WAN port IP address of the router is not a public IP address, i.e. if there is another router which uses private addresses 10.0.*.* then you have to configure additional port forwarding on that router.
Remember that the destination of the port forwarding should always be a static IP address and not a DHCP assigned. The latter can change over time. Therefore the computer to which you forward the port should have a fixed static IP address configured on the computer.

WRT54GS router to WET54G bridge question, bridge connect to a wired router?

Hello Everyone,
I have a Wireless-G LAN set up using a WRT54GS router. The existing wireless devices on the LAN are 2 PCs, a TiVo unit (using the TiVo wireless adapter), and 2 WET54G wireless bridges. One bridge connects by ethernet wire to a LAN printer. The other bridge connects by ethernet wire to a Sony BDP-S550 Blu-Ray player.
The security is WPA2-AES. so far all of that works OK, believe it or not, though I grew a lot older making it happen.
Now here's what I'd like to do: I'd like to add another wired LAN device where the second WET54G bridge connects to the Blu-Ray player. The bridge only has one ethernet wire connection, so I have to come up with some other way to get the two devices connected to the wireless LAN.
I have two other LinkSys devices kicking around here that I can use. One is a BEFSR41 wired Router. The other is a WAP54G wireless Access Point. If I can use one or both of those somehow, I won't have to buy another device. That's the agenda so far.
Right now it looks like this:
WRT54GS Router wireless to WET54G Bridge wire to WAN input of BEFSR41 Router wires to the two LAN devices.
I'm having trouble making this work, assuming it can even be done. Can I get this config to work, or do I have to add the Access Point where the bridge is now, or.... ?
Thanks for your time,
Big Al Mintaka
Solved!
Go to Solution.

You already have a network working with your existing devices. What you are trying to include in your network is possible and can be done. Instead of connecting the cable from the WET54G to the WAN port on the router, connect the cable the LAN port on the router. Disable the DHCP and change the lan ip in the range of your existing network. It should work.

WRT54GS v7 loses synch with modem

I have a WRT54GS v7 with v7.50.0 firmware, which is the latest firmware available. Every once in a while, my router loses synch with my modem. I say this because I cannot access the Internet. If I log into the router via the web administration module, go to "status" and then release and renew DHCP, everything works again. This only happens when the LinkSys router is plugged in. If I connect directly to the cable modem, I do not lose connection like this (I have tried hooking my computer directly into the modem for a week, no problems). Any idea what could be causing this? Thanks. pwc

May I also suggest that you power down your dsl or cable modem for about 30 seconds and then start your wireless router wait 5 min. and boot up your computer. This is what I have to do everytime I move my computer.
I tinker with everything

EA6500 loses WAN Internet - have to reboot, why?

Have EA6500 with Powerline and WAP300N to get wi-fi in all areas of home and works great.
But every 1-2 weeks all of my connected device lose WAN Interent connection, but still connected to router via wi-fi.
I power cycle EA6500 and then everything works great again. All devices get WAN Interent again.
Is there a configuration setting in the router I can change to stop the periodic power cycle?
My ISP is Cox Cable out of southern California.
Thanks for help.

Hi,
Can you try to perform MAC address cloning? Just access the setup page of your router then go to Connectivity -> Internet Settings. Put a check mark on Enabled box on MAC Address Clone -> then click on Clone My PC's MAC. Apply the settings afterwards.
Hope this helps.
If everyone needs to believe in something, I believe I'll have another beer..

Need help with understanding static vs dhcp on wrt54g router

I currently have a NAS200 device attached to my WRT54G router. The WRT54G is in DHCP mode so as to allow my various laptops and cameras to be accessed over the internet. What happens is that when I have a power failure the NAS200 is given a new ip address even though its plugged into a service port. I am then forced to go into the router and change the port mapping to whatever port the router has given to the NAS. Is there any way to keep the NAS200 at a specific ip address regardless of router resets. Thanks Hexmate

You have to set the static IP address on the NAS. The NAS is currently configured to use DHCP. Change it there to set a specific static IP address. The router itself does not have to option to set a fixed IP address to a specific device via DHCP.
For static IP addresses make sure to choose an IP address which is not used by any other device nor is inside the DHCP server address pool of the router. With default configuration a Linksys router uses 192.168.1.1 and the DHCP server uses 192.168.1.100-149, thus you have addresses 192.168.1.2-99 and 150-254 available.
Use an static IP address like 192.168.1.50, netmask 255.255.255.0, gateway 192.168.1.1 (if the NAS needs internet, e.g. for time synchronization) and DNS 192.168.1.1. That should do it. Again: this has to be done on the NAS device. The router has no option for that.

WRT54GS router loses WAN DNS

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