Linksys Wireless Router :: WRT310n V2 - Primary DNS Server For All DHCP Clients
Nov 24, 2012
The router always inserts its’ own address as the primary DNS server for the all DHCP clients even though you have set the DHCP server on the router to assign manual external addresses?
Oh I have a
WRT310n v2
firmware v2.0.01 build 004
Let me elaborate a little so I am clear what I am saying. On the router setup page go to the section that is labeled “DHCP server settings” enter 3 static DNS servers. Say 2 Google and one open dns.
8.8.8.8
8.8.4.4
208.67.222.222
Apply your settings.
Release your ip on your workstation, then renew it. And look at your DNS, the routers address is still the first entry.
DNS Servers . . . . . . . . . . . : 192.168.1.1
I suspect this was probably a design decision so that they could allow a user to open their web browser and type something neat like [URL]. Which for the average user is fine and dandy. If my ISP didn’t suck and try to redirect everything to cached copies I probably wouldn’t have noticed it. But since I end up using the router for DNS and it picks up DNS from my ISP I end up getting Akamai IP addresses, and they have problems with SSL certs…. So you get errors.
I know I can go set the DNS server settings on the workstations. But I really don’t want to do this on all of my devices as they are mobile and switch networks, and on some networks not using the local dns breaks things. Like on the corporate network.
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Dec 27, 2012
Is there a way to get the E4200 to NOT provide itself as a dns server to the DHCP clients? I have the unit set up to provide two dns servers to the clients, but the 4200 always provides itself as a third and it uses my cable providers dns servers. I am using a dns based filtering service to prevent certain material from being accessed within my network as the first two resolvers. So long as both or one of the provided servers is working it doesn't fall back to the unfiltered third, but I would prefer to remove it entirely.
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Apr 28, 2013
I have a Linksys WRT310N v1 with firmware v1.0.10 build 002Jul 19, 2010 My router fails to renew it's DHCP lease from my cable provider, causing internet access to drop. I can still access my cable modem at 192.168.100.1, but I must do a "IP Address Release" then "IP Address Renew" to get back internet access. The router works fine otherwise.
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Nov 17, 2012
I have a Linksys WRT310N V1.I am trying to connect this via PPPoE to another Thompson router/modem that has been succesfully switched into BRIDGE mode.The Linksys router is conneted via ethernet cable to an ehternet port on the Thompson router.The ADSL cable is pluggedinto the WAN port of the Thomson 'bridge'.There is no cable in the WAN port of the Linksys router.
The Linksys router is set up to connect over PPPoE using the username and password that was given to me by my ISPs tech support (checked and double checked).The DHCP server on the Bridged Thomson is set to ON. DNS is set to OFF.the DHCP server on the Linksys router is set to ON.
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Apr 26, 2013
If I set a primary DHCP server in the interface configuration, or if I override DHCP in the WLAN Configuration.Which interface does the WLC use to try and connect to the DHCP on behalf of the wireless clients?IFA) The dhcp server is not on any of the configured subnets.B) The DHCP server is on a different interface's subnet.
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Jan 16, 2013
I have a 4402 (version 7.0.235) working with 10 units of 1121 APs connected to it. The WLC is not configured to work in LAG mode. Physical portt #1 is connected to the Main Switch (trunk). I have 3 WLAN mapped to 3 Different VLAN and Everything (security and internal, external DHCP) is working swell...Now- I have connected Physical port #2 directly to an ADSL Router (giga port), Configured Port 2 as untaggedwith the proper IP details.I have configured this interface to receive DHCP from the ADSL Router and for some reason, Clients are not getting addresses.When I assign a Static address to my laptop I get internet access and all is nice. I tried configuring The WLC internal DHCP server (instead of the ADSL router) and that didn't work. It seems like a DHCP problem but I dont understand the source of the problem of think of the solution.When turning off the proxy settings I noticed that it worked. Is there anything to do with that? The problem was that after a while the other WLANs starting causing DHCP issues as well.
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Jul 3, 2012
I've got an E4200v1 running 1.0.04 firmware with guest access enabled. I'd like to find out who is logged in using the guest access. Is there a way to get a list of the DHCP clients on the guest network? I'm able to do this for the non-guest access via the WEB interface's Status->Local Network->DHCP Clients Table page. But I can't find a similar table for the guest network.
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Dec 4, 2012
Region : UnitedStates
Model : TL-WR700N
Hardware Version : V1
Firmware Version :
ISP :
My TL-WR700N does its job to provide wired internet to my desktop computer from another wireless router via client mode. However, when it is connected, the other wireless clients connected to the primary router lose their connections. To restore those connections, the WR700N must be powered down and the primary router must be restarted.
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May 28, 2011
i bought a vista laptop about a year ago and it has been working fine until about 2 weeks ago it seems that i cant connect to the internet i have a linksys router wrt54g but when i try to connect to the inter and run the trubleshoot it say cannot communicate with primary DNS server (64.71.255.198).
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Mar 16, 2011
I have been trying to connect my daughter's toshiba a215-54697 wirelessly to my linksys e3000 router. The computer recognizes the network wirelessly as the correct name and will only have "local access". When it is hardwired to the router it connects just fine, it also will connect to the unsecured (guest)network. I have comcast internet that is connected to an ooma box that is cconnected to the router. My laptop and the playstation find and connect to the internet just fine. The toshiba is running windows vista with a atheros ar5007eg adapter.
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Nov 11, 2011
I was trying to find if it's possible to add the option for static routes for DHCP clients on Cisco IOS DHCP config mode. I'm looking to add a settings as defined on RFC 3442, like this one, set on ISC DHCPd server:
Global settings:
option rfc3442-classless-static-routes code 121 = array of integer 8;
option ms-classless-static-routes code 249 = array of integer 8;
And for the subnet declaration:
option rfc3442-classless-static-routes 24, 192, 168, 30, 192, 168, 10, 1;
option ms-classless-static-routes 24, 192, 168, 30, 92, 168, 10, 1;
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Jun 11, 2012
FiOS gave me an Actiontec router that every other day is getting into a state where it refuses to give out IP addresses via DHCP. I have to reset the router to get it to work again.This seems ot have started in the last year, I assume due to some piece of equipment I added, or perhaps the VPN software or Windows 7 installed on my work laptop. I've not been able to figure out what is tripping up the Actiontec router, so I decided to try moving the DHCP function over the WRT610N that I have. I basically had the WRT610N setup without DHCP enabled, no NAT and no RIP, so it was basically just working as an access point. I left the Actiontec at 192.168.1.1 and assigned 192.168.1.2 to the WRT610N on the LAN side, while the WAN side is left disconnected.
I disabled DHCP on the Actiontec and enabled it on the WRT610N. I also set the DNS server to 192.168.1.1 so it would go to the Actiontec for name resolution. Using nslookup from a command prompt on a PC wireless connected to the WRT610N, I can see that names are indeed getting resolved. However, it looks like the WRT610N is setting itself up as a the gateway at 192.168.1.2. When trying to ping something out on the net, I get a message back saying that 192.168.1.2 is reporting the address as unreachable.
I assume this is because the WRT610N is handing out its own address (192.168.1.2) as the gateway. Is there anyway to get the WRT610N to hand out a different gateway address than itself? Optionally, is there a way to get the WRT610N to route requests coming to it over the Actiontec?I suppose I could just ditch the Actiontec altogether, but it seems a bit easier to use to setup port forwards and the like for various servers we have running. It also has a coax MoCA interface which I believe our FiOS set-top boxes use for their internet connectivity, so I don't want to lose that.
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Dec 4, 2011
The e4200 1.0.03 DHCP server appears to be quite buggy. After configuring a static IP / reservation for a client which already had a dynamic IP from the pool, the e4200 continued to offer this client its pool IP. However, the DHCP client listing in the e4200 showed the client having the static IP even though it was still being offered that pool address.This may sound like user error, but I can assure you, it is not. I have had a very frustrating experience with this product, and rather than fool with tech support again, I ran `tcpdump -e -s1600 -n -vvvv -i eth0 port bootpc or port bootps` to absolutely rule out a mistake on my part, bug in the DHCP client, etc. I found that the client was always offered that old IP, even thought the e4200 status display showed the "new" static one, after doing a DHCPDISCOVER without requesting a specific IP. This condition persists across e4200 reboots even after having the client release its lease!I finally was able to resolve this by forcing the client to request the static IP from the e4200.This is unquestionably a bug in the DHCP server, and additionally, the user interface does not show the real state of the underlying DHCP leases held by clients which have static addresses / reservations. Troubleshooting this condition is well beyond the abilities of the average user.
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Oct 12, 2012
I have the ea6500 and was wondering what the DHCP server is for? I turned it off and everything seems to be able to connect without it. Am I missing something? Also, when I disable clone my pc's MAC addy, I can't connect to the internet. (My computer is hard wired to the router).
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Jan 4, 2012
I just bought a Linksys E4200v2 router and updated the firmware to 2.0.26.124551. The DHCP server is turned on however, it won't issue any IP addresses. I have to set IP reservations for all of my devices in order for the router to give them an IP address. This includes my printer, xbox360 and 2 computers. I'm also having this problem with the wired and wireless lan.
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Jul 8, 2011
I just bought an e4200. I was using a LinkSys WRT54GS running DD-WRT alternative firmware.
One feature that I really liked in DD-WRT was the ability to assign static IP leases from the DHCP server. I liked having all of my devices running with a predictable, known IP address on my network. I have a Home Theater PC, and various controller applications that run on iPhones, etc. - some pretty homebrewed. Configuring the firewalls, etc. was much easier with IP address based controls.
Is there a way to achieve the same within the e4200's stock firmware?
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Mar 5, 2012
On my new E4200v2, after I tried to move beyond the disappointment of Cisco removing Internet Access Policy entirely, I decided to give the stripped down Parental Controls a try.
Sadly, I didn't have any luck doing what I needed to do... block my Tivo's from accessing Youtube.
I enabled Parental Controls, Added the Target Devices (my Tivo's did show up), and added "Youtube.com" as blocked site #1. Saved. Entered the parental password when prompted. Even rebooted the router.
But Youtube wasn't blocked. So I added to the target list a non-Tivo device (a Macbook) for a reality check, and rebooted the router again... still no luck. Youtube still not blocked.
So then I started to wonder if their Parental Control depends somehow on the local DHCP server & Client list. Because my E4200 has DHCP Server = OFF (I have always used a Windows Server for DHCP).
I tried to call Linksys support to get this working, but after 45 mins, including escalation to senior engineer, they really were pretty useless (no real familiariarity with my problem) then they disconnected my call!
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Mar 13, 2011
Cable operator went down 5 days ago and we haven't been able to get internet through the router since. We got a replacement modem from the cable operator three days ago, but I haven't been able to get it working with the router.
Router - Linksys WRT54G v.3, Cable modem Cisco 2100 Cable Modem (Scientific Atlantic DPC 2100)
The modem works when directly connected to a computer, however, once connected to a computer, we cannot plug it into another computer without turning the modem off and on again (I don't remember ever having to do that). Also, the modem is supposed to be able to run ethernet on one computer and USB on another computer. We can get both initially, but as soon as you use one, the will not work. Below is an ipconfig/all
[code]....
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Jan 2, 2011
I bought a Linksys E3000 Router. I have hooked it up and connected my PS3, laptop, iPad, 2 guest laptops on occasion with no issues. However, my fiancee's laptop will not connect to the internet. It connects to the network fine, just not to the Internet. I keep getting the same error "Cannot communicate with Primary DNS Server". She is running Windows Vista SP 2. I tried all three of the solutions suggested by Vista, but they all failed. I also did a hard reset of the laptop, router, and modem. Waited a little while with everything unplugged. Still cannot connect to the interent and get the same error message.
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Jun 4, 2012
When I plug my desktop into my wireless router I have slow internet but when I plug directly into the modem I have no connection at all. It says "cannot connect to primary DNS server". I'm using a Motorola SURBOARD SB6121 and a NETGEAR WPN824V2 Wireless Router. When I do ipconig /all this is what I get:
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Dec 6, 2012
How to connect my att dsl westell moden to my Linksys router. I am changing service providers from comcast to att. My router was working with my cable model but I'm unable to configure it to communicate with the dsl modem.
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Jun 18, 2012
I recently set up our new Cisco Linksys E1000 router (we originally had a Belkin, but it is dying). It works perfectly fine on my desktop. However, there is only a "local connection" on my mom's laptop, a Toshiba Satellite running Vista. Diagnosis: Cannot Communicate with Primary DNS Server(68.105.28.12). zy!
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Feb 5, 2012
I am getting 22-30mbs down through my router wired and I'm only getting about half of that through wireless. Is this normal? I also have a question about the color of the internet led. The online manual says that it should be blue, but mine is green. All of the other LEDs are blue except the internet one. Not sure if that is an issue or not.
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Sep 17, 2012
our WRT310N router does not retain any configuration given to it. When we reset the device, it goes back to its factory settings. In that state we can access the device (http://192.168.1.1), make some changes and save it. The changes include giving it a different name from the default, and setting a password for the connection. However, when we try to use it for our wireless network, we cannot connect to the internet. Checking the Connection Status in a Windows XP laptop, we found out that we have been given a gateway different from what we have set the device into and thus a different set of IP addresses for each of the device.
Also at this time, we cannot access the router anymore (via 192.168.1.1 or via the gateway provided) and thus having no choice but to reset the device again. We then reinput the configuration desired, save it, restart the systems (both PCs and router) but after a few moments (initially it retains the settings chosen) we won't be able to connect through the Internet and find out that the router has a different configuration again. We also tried letting the device "rest" but the same problem persists.
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Aug 19, 2012
I have a Linksys WRT310N V2 wireless router. Last week it started blocking access to our family website. That website appears to be the only one that is blocked. Every other website we have tried works just fine. I have tried the following.Remove the WRT310N router and plug a computer directly into the broadband modem. After this everything works fine for the one computer I have hooked into the internet.Remove the WRT310N router and substitute an old Linksys non-wireless router. Everything works fine for the hardwired computers on the LAN. Again, not really an option, need wireless access.
Unplug the router and so a soft reset. Still blocks this one website.I have not done a hard reset to factory specs. I wasn't looking forward to redoing everything I had set up.I looked over every setting in this router and can't find anything that would cause it to block a web page. I am far from a networking expert, but most of the settings seem pretty obvious.
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Oct 2, 2012
I have a WRT310N router and suddenly it stopped connecting to the Internet. I can't ping anything from the router page. I tried restarting it a few times, unplugged it, left it off for a few minutes, plugged it back in, upgraded the firmware, still not working. I tried another router and it works fine. When connected directly to the modem, it works fine, so the problem has to come from the router.
I can connect to the router through wired or wireless just fine, I just can't access the internet.
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Mar 4, 2012
Which I have never done since my dad bought it a few years ago. Now when I try re-installing the Linksys software it gets stuck when trying to identify the network from the cable modem through the router. I've tried every reset feature there is & nothing has worked! I'm I going to need a new router?
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Dec 23, 2011
I can't open a connection to eca-msp.crashplan.com (which is one of the data servers for the CrashPlan backup service).Symptom: "telnet eca-msp.crashplan.com 443" hangs, and eventually times out.
Works fine when I connect directly to my cable modem.No PC or device behind my firewall can access it when going through firewall.Other crashplan hosts (notably, central.crashplan.com 443) work just fine.And of course, every other https site I use works just fine.
[code]....
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Aug 12, 2011
I've been using the WRT310N and noticed that the range is quite poor--I've noticed this in two different houses.I've tried using an old repeater but it is a G repeater so it seems to actually make things worse i.e. a remote device will work slightly better with an unrepeated N signal than a repeated G (router is a in mixed mode).
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Nov 25, 2011
Having a devil of a time trying to forward a port on my router. Did everything instructions said, but it still doesn't work. What can I do.
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Nov 27, 2011
I'll be installing a cable modem in the next few days and would like to connect my WRT310N to it. I was wondering what would be the best settings to use.
Main uses:
- Distance from WRT310N to other devices is around 8 meters, separated by 1 concrete wall
- Stream music/video from PC to iPad and another laptop wirelessly.
- Transfer files between devices
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Oct 27, 2010
I accidentally flashed my WRT310N version 1.0 with version 2.0 firmware. After which the router was dead as a doornail.After a frustrating 3 hours of reading forums, following over 11 tutorials, and being 1 second away from throwing my WRT310N at the wall, I finally fixed it.I performed this fix on a Windows 7 32-bit PC. My provider is Comcast.Make sure you only have one ethernet cable connected from your PC to the router. The cable should be connected to any one of the 4 blue ports. I connected mine to port 1. DO NOT CONNECT IT TO THE YELLOW INTERNET PORT on the router.
With the router in your hand, hold down the reset button for 30 seconds until the port 1 light goes out then immediately disconnect the power while still holding down the reset button. DO NOT LET GO OF THE RESET BUTTON!WAIT 30 more seconds with the power disconnected. (Do not let go of the reset button)PLUG the power back in and WAIT another 30 seconds. After that, let go of the reset button. You should have held the reset button for a total of 90 seconds. This will wipe the router's nvram.Bring up the command prompt window that you prepared earlier. You should still see the ping command that you entered in Step 2. Now, hit ENTER to start pinging the router continuously. You will probably see a bunch of "request timed out" responses.Bring up the TFT2.exe window that you prepared in step 2. Press UPGRADE so it can begin communicating with the router. Make sure you set at least 10 retries.
As quickly as possible, go back to your router and HOLD the reset button and disconnect the power. You don't need to wait 30 seconds...5 seconds is enough. While stil holding the reset button down, plug the power back into the router and keep an eye on the command prompt and TFT2.exe windows.If the command prompt has successfully pinged the router, TFT2.exe will begin to flash it and very soon it will show a success message below the progress bar. If you still can't successfully ping the router, close and restart TFT2.exe using the same settings and try disconnecting/reconnecting the router's power again as mentioned in the paragraph above. You may want to try holding the reset button down longer than 5 seconds. I was able to get this to work on the FIRST TRY.Now that your router is has the proper firmware, go back to your adapter's settings (mentioned in step 4), delete the static IP and set it back to the default automatic settings.Plug your cables back in and don't forget to plug the ethernet cable from your modem to the yellow internet port on your WRT310N."Recycle" the power to your cable modem by holding down the reset for 60 seconds or disconnect it from the power outlet for 60 seconds.Reset your router by holding the reset button for 30 seconds.
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Apr 2, 2012
My HD Configuration is:
+ WRT310N v2 ,
+ Win7 x64,
+ Realtek RTL8168C(P)/8111C(P) Family PCI-E Gigabit Ethernet NIC (NDIS 6.20)
My connection is still 100.0 Mbps.
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