How to share a single cable modem connection to two wireless routers?

I currently have a network comprised of two AEBS (the latest version and the gigabit version before it) as well as an airport express.
I recently bought an Asus RT-AC68U so that I could improve my wireless network range and throughput. I've always had some issues with the AEBS not being strong enough to reach the furthest rooms in the house. I decided to supplement it with an Asus. How do I set my network up in such a way to be able to run both routers connected to one modem and maintain my Airport nextwork?

Very good choice of router.. Asus is class leader now.
Simply plug the AEBS into the Asus.. set it in bridge mode and set it to create a wireless network..
Now you can have a few choices.. either setup a different network.. so call the AE wireless AEwifi (short names, no spaces, no strange characters).
Set up standard security WPA2 with 8-20 character password mixed case and numbers only. Then you can plug the AEBS no2 and Express into AEBS no1 or wireless extend however you want..
Or do roaming network,, where both Asus and AE use the same wireless name(s) different names for 2.4ghz and 5ghz can still help. Same security and passwords.. and leave the clients to join whatever is the strongest signal.. both are valid ways to do it.
Test both and use whichever suits.. !!

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Help, Issues Connecting two Wireless Routers

Ahead of time I would like to thank everyone for their responses and help. I tried to be as clear as possible. I believe I got all the details right. Some things are repetitive and might be a little confusing, but please ask questions for any clarification. Thanks for the help.
Current Routers:
1. Linksys WRT600N ---- Used as primary router. Connected to the 4 ports are 3 PCs and a wireless router. All three PC have static IPs I reservered, also have a static IP reserved for the WGT624 wireless router. DMZ is also enabled and destination is the IP reserved for WGT624.
2. Netgear WGT624 ---- WGT624 is connected to WRT600N through the WAN port on the WGT624 to port number X on the WRT600N . I was using Netgear WGT624 as an access point for a Xbox360 , a couple of macs and ubuntu netbook. This router recently died needs to be replaced.
3. Linksys E3000 ---- Recently purchased to replace the Netgear WGT624 that has died. I want to use this as my new access point. Having trouble setting up the settings for this router. I want the same setup as before.
Detailed Problem
I currently have the WRT600N located in the basement connected to a cable modem through the WAN port. Connected to the 4 ports on the back of WRT600N are 3 PCs and a Wireless router. Most of the settings on the WRT600N I left alone. The only thing I changed was reserving 4 IPs for the 3 PCs and the WGT624 wireless router. I also enabled the DMZ for the destination IP of the WGT624. I also opened a couple of ports.
The Netgear WGT624 that died was located on the upper level third floor. I was using it primarily as an access point. It was connected through the WAN port of the WGT624 to port X on the WRT600N which is located in the basement. Settings on this are a little different. On the WGT624 I disabled the firewall. I left both the Auto DHCP enabled and the DHCP server. WPA was enabled on the WGT624. With these settings on the WGT624 I was able to connect to a xbox 360 and a few macs wirelessly to the internet with no issues . I also noticed that the the internet IP displayed on the status tab on the WGT624 was the IP I had reserved on the WRT600N.
Recently the WGT624 died after years of usage. So I purchased a Linkys E3000. I want to have a similar setup as before with the WGT624. However I have been running into issues. Wirelessly I cannot get access to the internet through the E3000. The E3000 is connected to the WRT600N in the same was as the WGT624. The WAN port of the E3000 is connected to the port number X of WRT600N. On the status tab of the E3000 I seem to be getting a strange Internet IP address. 127.0.0.1. This I think is a loopback address, I am not sure? Same with the subnet mask of 255.0.0.0
So the problem is I want the keep the same setup as before if I can. I don't want to the any computers who connect to the access point to have access to any computers that are connected to the 600N.
I read on another thread I could connect two wireless routers together by connecting port X on the 600N to port X on the E3000. Then changing the internal IP of the second router from 192.168.1.1 to 198.168.1.2 and then disabling the DHCP server.
I really want to keep the same set up as before if posslble. More importantly I want to know why my setup prior, the WRT600N to the WGT624 worked with no problems. Why could I use the WGT624 as an access point and not the E3000? Should I switch the the two routers use the 600N as the access point and E3000 as my main router?
Thanks again.

1. You have chained two routers. The WRT600N uses LAN IP address 192.168.1.1 subnet mask 255.255.255.0. The Netgear is connected with the WAN port to the WRT (thus uses an 192.168.1.* address on the WAN port) and uses 192.168.0.1 by default on the LAN side. Your new E3000, however, uses the Linksys default 192.168.1.1 on the LAN side. If you connect the E3000 to the WRT600 without making any changes it won't work. A router cannot work if WAN and LAN side both use 192.168.1.0/255.255.255.0. That's impossible.
2. Thus, the quick and easy setup to get the same as before would be to change the LAN IP address of the E3000 from 192.168.1.1 to 192.168.0.1. After that change you can connect the internet port of the E3000 to the WRT and everything works like before.
3. However, in particular because you need port forwarding and you do port forwarding through two routers I would recommend not to run two routers chained. I can't see why it is necessary for you to run two routers and two separated networks. The basic setup and an explaination why a different setup may be better is here. I think in your case it would make things much simpler and you have full connectivity between all your computers. You can set up a roaming wireless network, too. The only problem is that you will "loose" one port on the E3000 because you cannot use the internet port.

How do I share a 3G USB modem connected to my Macbook Pro with my Airport Express?

Hi. I have a 3g USB modem connected to my macbook pro, and I want to try share the signal with my Airport Express (latest model).
Now before everybody screams that it can't be done, I was searching the forums and found a discussion in which someone describes how to do it from 2008, unfortunately it is archived and I couldn't ask the author directly, and the description doesn't go into much detail.
In the thread, the author describes turning internet sharing on to share the USB modem, creating a network on the macbook, then renaming the Airport Express network name the same as the macbook, and setting the AX to Join a Network.
Problem being there is no description of whether the macbook connected to the AX via ethernet or wifi, what settings were changed on the AX eg bridge mode.
Is this possible in theory, and has anybody had any success sharing a 3g USB modem via a macbook pro to an AX? I know there are other options like getting 3g ethernet modems, unfortunately not an option in this case - new house, waiting for DSL to be installed, 2-3 month wait.
Thanks

Well, you cannot use the 3G USB modem plugged directly into the Express. However, you can configure your MacBook Pro to do 'Internet sharing' (SysPrefs>Sharing) over the Ethernet port, and then connect your Express into the Ethernet port. Alternatively, you could always get your MacBook to 'create a wireless network'.
new house, waiting for DSL to be installed, 2-3 month wait.
You could always look for open WiFi networks to *cough*borrow*cough* .

Can I have cable modem connected to iMac but shared with Airport Express?

I have my internet access to my iMac through a cable modem wired to the Mac. I use the Airport Express to play music from the Mac wirelessly to my stereo. Can I then share the internet access I have on the iMac through the AX without actually connecting the modem to the AX? The wiring is easier to get to the Mac than it would be to get wiring from the cable modem to the Airport Express at the stereo. I want to be able to access the internet wirelessly from a PC laptop that I also have.
Thanks

Yes, you can do that. Using the AirPort Utility, you would set the AirPort Express up to create a wireless network giving it whatever name you want. When it gives you an error message that nothing is connected over ethernet, you can click the button to ignore that message and it will perform as you are requesting.
Note that if your internet connection stops working when you do this, then you may need to change your network port priority so ethernet is higher than AirPort.
Mac OS X 10.5 Help: Changing the priority of your network connections
http://docs.info.apple.com/article.html?path=Mac/10.5/en/8853.html

How to share internet if the server connects to it via VPN?

Hi, mac brothers! Need your help.
I have a server with 2 ethernet cards (en0, en1). It connects to internet via VPN on en0. LAN clients connect to the server using en1. I can't share VPN internet connection to LAN %(. (tried to find the answer in the 10.4 server documentation, but there is nothing about it).
I know how to share internet connection when there is no VPN - direct connection via DSL modem...
Can you help me?
PS; 0S X Server 10.4.11

You need to use NAT and have the firewall running.
And then you need to use the VPN connection (PPTP?) "interface" (when connected), probably ppp0 - not en0, in your NAT config. This can be achieved by dragging the config (small symbol in lower right corner in NAT config in Server Admin) to the desktop, edit it (look for en0 and change it to ppp0), save it, and then drag it back into the NAT config window and save.
I think the VPN tunnel must be up before turning on NAT/firewall so if you reboot the server you might need to turn NAT/firewall off -> on to make it work again.
If the WAN/ppp0 IP is not static (so you can enter it in your server DNS) you probably will have trouble with many of OS X services running in the server.
Most OS X server installations using an Internet connection with a shifting public IP is better off by putting a NAT router which can do the in initial connection (by DHCP, PPTP, PPPoE, whatever), between it and the Internet.

How to reconfigure WRT300N from cable modem to DSL modem

I have moved my wireless WRT300N router from my home in Michigan where it was configured using a cable modem for the internet connection to my Florida home where I use DSL. I went though the routine of using the install disk to re-set up the modem to use the DSL line and it fails to connect to the internet. I did this twice, first using my new Vista os computer, and then thinking Vista was a problem, I tried the same procedure using an older XP os machine. Both gave me the same result getting a message that the router could not connect to the internet.
Any idea what is going on? The DSL line is connected to the internet otherwise I would not be online right now asking this question.
Thanks all for your help.
Jerry

Before you try to use the CD setup disk, you need to reset the router to factory defaults, using the reset button on the back of the router.
To reset your router to factory defaults, use the following procedure:
1) Power down all computers, the router, and the modem, and unplug them from the wall.
2) Disconnect all wires from the router.
3) Power up the router and allow it to fully boot (1-2 minutes).
4) Press and hold the reset button for 30 seconds, then release it, then let the router reset and reboot (2-3 minutes).
5) Power down the router.
6) Connect one computer by wire to port 1 on the router (NOT to the internet port).
7) Power up the router and allow it to fully boot (1-2 minutes).
8) Power up the computer (if the computer has a wireless card, make sure it is off).
9) Try to ping the router. To do this, click the "Start" button > All Programs > Accessories > Command Prompt. A black DOS box will appear. Enter the following: "ping 192.168.1.1" (no quotes), and hit the Enter key. You will see 3 or 4 lines that start either with "Reply from ... " or "Request timed out." If you see "Reply from ...", your computer has found your router.
10) Open your browser and point it to 192.168.1.1. This will take you to your router's login page. Leave the user name blank, and in the password field, enter "admin" (with no quotes). This will take you to your router setup page. Note the version number of your firmware (usually listed near upper right corner of screen). Exit your browser.
If you get this far without problems, try the setup disk (or setup the router manually, if you prefer), and see if you can get your router setup and working.
If you cannot get "Reply from ..." in step 9 above, your router is dead.
If you get a reply in step 9, but cannot complete step 10, then either your router is dead or the firmware is corrupt. In this case, use the Linksys tftp.exe program to try to reload your router with the latest firmware. After reloading the firmware, repeat the above procedure starting with step 1.
If you need additional help, please state your ISP, the make and model of your modem, your router's firmware version, and the results of steps 9 and 10. Also, if you get any error messages, copy them exactly and report back.
Please let me know how things turn out for you.

Wired home net, 5x router - 4 to computers, 1 to new cable modem: connect?

I have an in-home Ethernet, cat-5 wired, network to which are connected 2 Macs and 1-2 Windoz boxes. I just subscribed to cable high speed internet service (Comcast nee Adelphia) and want direct access from each computer to the cable modem. Supplier sez this should work - however, their tech support doesn't have wired net solutions in their 3 ring binders (you'll have to consult the router mfgr - well, the router, GFE EZ500-S, is no longer made but all seems to be working fine - I can ping the working machines from this Mac, all given a common subnet IP address of 10.10.10.nn, nn=1/2/3/4. My g4 mdd nn=2.
The cable modem is broadcasting just fine - a Motorola 5100 model. All lights are green that should be. I understand that if I directly hooked it to one (probably Windoz) box I would should see the default webbrowser displaying the Adelphia signin screen by which I initiate my account name and email identity. I know from the Compaq box with XP home on it and the Help file that Billy Gates recommends AGAINST what I want to do and wants me to put a router on my router through which every other (than the 1st) box must go to get to the cable. The cable modem is connected directly to the 5th RJ45 port on the wired router.
My question is, what must I do on the Mac to process the cable modem signals on the Mac? I have it on the authority of an Adelphia geek I chatted with at their local office where I went for face time with them that I need to be walked through Mac connection but that what I want in respect to direct access from each computer to the cable modem should work just fine AS SOON AS I PROPERLY INITIATE SERVICE by interacting with their signup web page on some box. I have not properly configured the Compaq because I am not getting the defaut web browser (Firefox) displaying the Adelphia sign-in. I apparently need to add/activate some XP code to detect the cable modem signal on the Ethernet connection. I haven't done that yet because I'm afraid Billy Gates will compel me to install their router-on-a-router solution.
I am in an unresolved circle here. When I spent 45 minutes on their support line I essentially was told they don't do wired routers/home networks. Tell me, doctor, what should I do?

Duane is correct, the EZ500-S is an Ethernet switch, not a router.
If you want to use your switch to connect your systems to your ISP, then all of your systems must be configured to obtain their IP-addresses automatically*, and you must arrange with your ISP to lease enough IP addresses for all of them. When each system boots, it will use DHCP to request an IP-address from your ISP.
If you don't want to pay your ISP for more than one IP-address, then you must get a router. This isn't Billy Gates' rule, it's the Internet's. If you do this, you can continue to statically assign IP-addresses (10.10.10.nn) to your systems if you want; the router will get its own WAN IP-address from your ISP using DHCP, and you can configure your router to do whatever you need on your LAN. Most routers come with built-in DHCP servers for the LAN, so you could also configure your systems to obtain their IP-addresses automatically -- it's up to you. The router will use NAT to substitute its own WAN IP-address on packets going out to the WAN, and to route incoming packets to the proper system on your LAN.
*unless you contract with your ISP for one or more static IP-address, which is typically a lot more expensive!

AnyConnect. ( version 3.1.02026 ) and Arris cable modem connection problem

I had a new Arris high speed Cablevision cable modem installed. I can connect to the internet but cannot now get to the Oracle Network using Cisco AnyConnect Secure Mobility Client and myaccess.oraclevpn.com.
Cisco connects OK and I put in my VPN password in, hit OK but then get message ‘Failed to get configuration from secure gateway.Contact you system administrator’ Then error Anyconnect was not able to establish a connection to the specified secure gateway.

I had a new Arris high speed Cablevision cable modem installed. I can connect to the internet but cannot now get to the Oracle Network using Cisco AnyConnect Secure Mobility Client and myaccess.oraclevpn.com.
Cisco connects OK and I put in my VPN password in, hit OK but then get message ‘Failed to get configuration from secure gateway.Contact you system administrator’ Then error Anyconnect was not able to establish a connection to the specified secure gateway.

Wrt54gs router to internet cable modem connection drop

With the wrt54gs router set at auto dhcp and mostly on default settings, after some time of inactivity the connection between the router and internet cable modem drops out. That is, when there is no activity (no transmission to/from internet) the connection drops and the wireless connections shows "local only." Any suggestions/comments on why this is so? Thanks!

Have you tried to connect the Modem to the computer and checked if you are facing the same problem or not?
On your Router setup page, change the MTU size from AUTO to Manual and change the Size from 1500 to 1350 and click on Save Settings..... Then click on the Wireless tab and below Set the Radio Band to Standard-20MHz and change the Standard channel to 11-2.462GHz...Wireless SSID broadcast should be Enabled and then click on Save Settings...
Click on the sub tab under Wireless "Advanced Wireless Settings"
Change the Beacon Interval to 75,Change the Fragmentation Threshold to 2304,Change the RTS Threshold to 2304 and Click on Save Settings...
Now see if you can locate your Wireless Network and attempt to connect...

Cable modem connection to the internet using Time Capsule

I have just moved to Indonesia and my ISP has provided a cable modem. I can connect to the internet if I plug the ethernet cable into the MAC directly but if I try to use my time capsule I cannot get a connection to the internet.

You will need to completely reset the modem.....and if that does not work.....reset the modem and reconfigure your Time Capsule.
Push the reset button on the modem (if present, it is usually on the back)
Power down the modem by pulling the power plug or wall plug
Remove the battery from the modem (if easily accessible)
Power down all other devices on your network...order is not important
Wait at least 30 minutes. A hour would be better and longer will not hurt.
Connect the Ethernet cable from the modem to the WAN port (circle icon) on the Time Capsule
Re-install the battery if you pulled it in the step above
Power up the modem and let it run for at least 5 minutes by itself
Power up the Time Capsule the same way
Power up each other device one at a time a few minutes apart
Check for proper operation

Problems with spotty cable modem connection when connected to 3rd gen Airport Extreme

Hi All, here's my problem:
I've got a 3rd gen airport extreme (AEBS) that I've been using for the last several years and had no issue. Recently, I decided to switch from Verizon DSL to Time Warner Cable, and in order to avoid extra fees, I decided to purchase my own cable modem. Here begins an epic battle with sanity...
- 1st modem Motorolla SB6141: This was the first modem that I bought and it worked like a charm... at first. The first week was like a dream come true, with incredibly fast speeds and very low latency (ping=15ms, dl=30Mbps, ul=5Mbps). The AEBS and the modem got along great, no issues until all the sudden the connection speeds started dropping off. The connection would never fully drop to zero, but close. The bandwidth would hover around 1Mb down, which was about a 1/30 of the speed I was supposed to be getting. I chalked it up to a bad model so I headed back to Best Buy.
- 2nd modem Zoom 5341J: This modem istalled with little issue and worked pretty well. The only problem I encountered with this modem was that it seems to cause a ton of network latency (ping=200ms average), which was way too slow for me. On the first night that I had this modem working, I cycled the power (to try to resolve the latency issue) and it never came back on. there must have been a short in the board or something. Back to Best Buy.
-3rd modem Netgear CMD31T: This modem was an absolute nightmare to get connected to the AEBS. The process involved following a VERY specific order of operations that involved powering down the modem and the AEBS, doing a factory reset on the AEBS, poweing down the AEBS, powering on the modem, plugging the modem into the AEBS, and powering on the AEBS. None of the other modems gave me that much trouble, but when I eventually got it working it was FAST. I was getting the best latency and bandwidth out of all of the modems. Unfortunately, that lasted about 5 minutes, when the bandwidth dropped to 1Mbps and never recovered.
I know what you all are thinking... the problem must be with the AEBS. But here's the kicker, I have an Airport Express that I tested with all three modems and got the same results. Well then (you must be thinking), the problem is obviously with the ISP! But when I connected all three modems directly to my MacBook Pro, they all worked fine, with no connectivity issues. The only time I encounter a problem is when I involve an Apple router. I love my AEBS and my Airport Express, so I'm avoiding buying a different brand router. Does anybody have any suggestions? Thanks for your help!

Well after doing some research, I've figured out that the problem I was encountering had nothing to do with the Airport Extreme or the cable modem! Apparently, my problem was caused my uplink saturation. In other words, my cloud backup service (BackBlaze) was using up all of my upload bandwidth, which meant that ACK packets (acknowledgments) weren't even getting through. This would basically cause any server I was downloading from to stop sending additional packets, making it appear that connection to the internet had been severed. My simple fix was to cap the bandwidth of my BackBlaze backups to about half of my total upload bandwidth. One thing I did learn is that the this issue is usually fixed by using a router with QOS (Quality of Service) capabilities to prioritize ACK packets. Unfortunately, for some reason Apple has neglected to add this feature to even their high end routers.

How to Create a Single Backend Socket connectivity in a Server Socket Pgm

Hi Everybody,
I have a written a Server Socket which connects to back end socket and receiving the data and sending back to the front end. But as per my client requirement i need to create only one socket at the back end. But the code I have written is creating new sockets for each request. Is there any way to use the single client socket connection for all the transactions. I have attached the sample code for the reference.
import java.io.*;
import java.net.*;
import java.nio.ByteBuffer;
import java.nio.channels.SocketChannel;
public class serl implements Runnable
ServerSocket serversocket;
Socket clientsoc;
Socket fromclient;
PrintStream streamtoclient;
BufferedReader streamfromclient;
SocketChannel socket_channel=null;
Thread thread;
public serl()
try
serversocket = new ServerSocket(1001);//create socket
clientsoc = new Socket("10.100.53.145",200);
socket_channel = clientsoc.getChannel();
catch(Exception e)
System.out.println("Socket could not be created "+e);
thread=new Thread(this);
thread.start();
public void run()
try
while(true)
PrintStream streamtobackend=null;
BufferedReader streamfrombackend = null;
fromclient=serversocket.accept();//accept connection fromclient
streamfromclient=new BufferedReader(new InputStreamReader((fromclient.getInputStream())));
//create a input stream for the socket
streamtoclient=new PrintStream(fromclient.getOutputStream());
//create an a output stream for the socket
String str=streamfromclient.readLine();
//read the message sent by client
System.out.println("Output Input From Vtcpd "+str);
streamtobackend.print(str);
streamtobackend = new PrintStream(clientsoc.getOutputStream());
//create an a output stream for the backend socket
streamfrombackend = new BufferedReader(new InputStreamReader(clientsoc.getInputStream()));
//create a input stream for the backend socket
str=streamfrombackend.readLine();
System.out.println("Output From Backend Client"+str);
streamtoclient.println(str);
}//end of while
catch(Exception e)
System.out.println("Exception "+e);
finally
try
fromclient.close();
catch(Exception e)
System.out.println("could not close connection "+e);
public static void main(String ar[])
new serl();
}

Srikandh,
Create a singelton pattern for you socket ( IP, port, etc..) and each time you read the input stream and write to the output stream, do the following to the socket to reset it in the working thread
fromclient.getInputStream().mark(0);
fromclient.getInputStream().reset();Hope this could help
Regards,
Alan Mehio
London,UK

Xfinity wireless/cable modem connected to Apple Time Machine

I set up my Xfinity wireless/cable modem by ethernet to my time machine. The set up appears to work (2 wireless networks with internet access) but the amber light on the time machine is flashing (not green)....is there some issue I'm missing?

Open AirPort Utility and click Manual Setup
Click directly on the word Status (2nd line on the summary page), and a window will open to explain why the amber light is flashing, along with suggested actions
What does the message say?

How to share a single cable modem connection to two wireless routers?

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