Multiple routers/networks on one cable modem

Hello everyone:
I've been reading around on the forum trying to find the answer to this question, but have not found any specific answer that satisfies all my requirements. A more in-depth explanation.
I have 1 IP address via cable modem. I want to configure two wireless routers each with different SSIDs. The main network would be an Apple Time Capsule and would be the parent’s network. I would connect an AppleTV and the second router (Linksys WRT-310N) to the LAN ports and the parents’ phones/tablets and an Airport Express extender wirelessly. The second router would provide a distinct wireless network, have a DVR, network hard drive, and blu-ray player connected to the LAN ports and the kids’ handheld devices and a wifi printer connected wirelessly.
Ideally, both networks would use WPA2 security and the parents’ computers, a Mac and a Win (the Win running Network Magic Pro) could manually switch between networks as necessary.
Can someone please tell me if this is possible? I think it is based on my research, but specific details about how to do it would be appreciated.
EQUIPMENT
Modem: Motorola SurfBoard SB6121
Router 1: Apple Time Capsule
Wireless Extender: Apple Airport Express
Router 2: Linksys WCG-310N

The new modem is configured to only hand out one public IP Address. Nothing you can do but call them and try to get a higher level tech support.
Please remember to Kudo those that help you.
Linksys
Communities Technical Support

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How to create 2nd Wifi Network from one cable modem

Hello, I am trying to create a 2nd wireless network from one cable modem. Currently I am using an Airport Express connected to the cable modem. I also have an unused Airport Express that I would like to use for the 2nd network. The Motorola modem has only one network cable port in the back. I am currently using Time Warner as my service provider. Can someone tell me if a network switch would suffice or would I need a new router, and how would I set them up? Thanks.

Unfortunately you will not be able to create two separate Wi-Fi networks with the current models of the AIrPort Express that you have. You would need at least one 2nd generation Express and one 1st generation Express to do so.
The 2nd generation Express would be connected directly, using Ethernet, to the Internet modem, and the 1st generation Express would be connected, via Ethernet to the 2nd gen. In this configuration each Express could be configured to provide a separate Wi-Fi network with each using a different security type.

Two Routers off One Cable Modem?

Can I run two routers off one cable modem, one a hardwired Windows network and the other an Airport Extreme networking a Powerbook G4 and wireless printer?

No you cannot - unless you pay your cable internet service provider for two public IP addresses.
What I would suggest if you already have the base station but have not yet purchased the router:
- connect the cable modem to the Base Station's WAN port
- buy a 4- or 8-port ethernet switch. Connect to the switch the LAN port of the Base Station, and all of your hardwired PCs
What I would suggest if you already have a router and base station:
- connect the cable modem to the router's WAN port
- connect all the hardwired PCs to the router's LAN ports
- connect the Airport Base Station to one of the router's LAN ports, and configure the Base Station to function as a wireless access point per http://discussions.info.apple.com/webx/.59976caa

Public and Priviate network from same cable modem - more questions please

A couple of weeks ago I asked about having both a privite network and a public wireless network that would work from one cable modem. The requirement is that the private network not be seen or be "hackable" by users on the public network.
Duane gave us the approach to use and we think we have it right, but because the security of our private net is so important, we want to make sure. We will not do the public network if the security of our private network is in danger.
Here is how things look:
Cable modem --> Router 1 WAN port
Router 1 regular ports --> Private Network -and- Router 2 WAN port
Router 2 regular port --> AirPort Extreme WAN port
We have our public network set up as WPA Personal and we broadcast the network name. The password for this network will be shared wiith users as they enter our public area where they can use their PCs. The default login/password on both routers and the AirPort Extreme have been changed. Connecting via AirPort to the public network I can see Router 2 but not Router 1 or any of my computers, printers, etc. when I browse the network via the Finder.
Do I have it right?
Does this setup give users on the public network any way to get to my private network, computers, and files? Are there any tests/experiments that I could run to further validate this setup?
How secure is it?
Am I asking for problems by offering a public network that shares some of the resources of the private network - modem, MAC address, IP addresses of routers, etc.
From the public net we have attempted to use the IP addresses of the computers on the private network without success.
The best answer I could receive is that there is no way to hack the private from the public. If this is not the answer, how secue am I.
Tim

When you state "Router 1 regular ports(8) feeding Private Network..." do you mean that there is another private router or are the private clients directly connected to router 1?
If you have a private router, the public devices connected to the AirPort Extreme base station (AEBS) could address and reach anything on Router 1 including the private router's WAN side.
The firewall in private router should block any of the public access to clients of private router. So any traffic from private router should be safe as long as the public has no physical access to router 1 nor router 2's WAN port.
If the private clients are directly connected to router 1, then the public clients can directly access any of your private clients. The traffic among private clients and from private clients to Internet would be secure (as long as my previous note about physical access is true).

Any suggestions for an all-in-one "cable modem router print server" (N)

any suggestions for an all-in-one "cable modem router print server" (N)?

If that's a problem with your cable company, change the company.
If your cable company is not able to provide you with a cable modem which gets you full performance for their service why would you bother with that company or try to make it better than them?
If you subscribe to a 100 Mbit/s service they must be able to provide you with a modem that does 100 Mbit/s and be able to demonstrate you 100 Mbit/s on your cable.
If they are unable to provide you with a modem which does 100 Mbit/s and thus cannot demonstrate that the service they have installed in fact can do 100 Mbit/s but only give you a 50 Mbit/s because that's the best they have, why bother buying yourself a better modem to find out whether or not their service does what it promises or not??
In addition, an integrated device won't get you better performance. On the contrary, consumer devices are generally single CPU (and core) devices. It's usually running some Linux or similar. If a single process gets overloaded it can drag down the performance of the whole device. For instance, let's say there is a bug in the print server software of the router. You print something and it hangs and the print server process on the router runs wild. Now the CPU is fully loaded and the routing performance will go down. If there is a bug in the routing software it will bring down the whole device and you can't even print.
You'll get the best performance if you use dedicated devices because then one device cannot overload another. Get a modem. Get a wireless ethernet router. Get a printer with integrated print server. That's far better.
It's like the all-purpose audio device compared to components...

One cable modem tow wireless routers in my house --- is this possible?

I'd like to use two wireless routers to fully cover my house with wireless access. I have a WRT5462 v1 wireless router that I connected directly to the cable modem, and then connected a second wireless router to one of the CAT 5 ports in the first, with the CAT 5 going into the "Internet" port in the second, which is a WRT610N v1. The first router works fine, but the second does not provide internet connectivity to the devices that connect to it.
I suspect I need to make modifications to the Internet Connection Type in the Basic Wireless Configuration - I changed from DHCP to a Static IP of 192.168.1.2, but this didn't work. Any help and direction greatly appreciated
Solved!
Go to Solution.

Thank you very much for you response. Done the set-up as you described, with 1 exception: The WRT54G2 v1 doesn't allow me to reserve an IP address in the DHCP Server settings section. Therefore, I set up its Network as 192.168.1.2-192.168.1.49
That said, the 2nd router is set up with that IP address, and I can connect to it both vie Ethernet and wireless, and it is supplying IP addresses via its DHCP server address accordingly. However, no access to the Internet (via the first router).
Now, when I set up router 2 as a static IP, I'm asked to enter an "Internet IP Address", which I've specified as the 192.168.1.2 as you indicated. I'm then required to enter a subnet mask and default gateway, and then DNS 1, DNS2 (Optional), DNS3 (Optional)
Not knowing what I should enter here, I entered 255.255.255.0 for the subnet mask, and 192.168.1.1 (address of the first router) as default gateway.
Any suggestions on what I'm doing wrong?

* Share One Cable Modem with 2 Airport Networks ??? *

I'd like to have my one Motorola cable modem shared with an Airport Extreme G base station and an Airport N base station on 2 seperate Airport networks (G and N). Is this possible?
If not, if anybody has any ideas for a workaround, that would be great.
- thanks in advance.
Ted.

Yes.
Just connect the cable modem to the WAN port of the first AirPort Extreme base station (AEBS).
Then connect the WAN port of the 2nd AEBS to the LAN port of the first AEBS.
Configure the 2nd AEBS so that it is acting as a bridge (not distributing IP addresses).
You can find reference to this setup in threads describing a "dual-band" network. Also Apple's documentation describes this setup.

Muiltiple Routers/networks on one Smart Wi-Fi Account.

I'm looking at purchasing a few smart wifi routers for some of my remote locations and I was wondering if you can manage muiltiple networks/routers from a single smart wi-fi account.

AFAIK no limit. It's been a long time since I've done this but it was very straight forward from what I can remember.

When I connect Time Capsule to Time Warner Cable Modem, amber light flashes

I want to use Time Capsule as my primary wireless network base. When I connect my Time Capsule directly to my Time Warner Cable Modem, the amber light flashes and Time Capsule won't appear in AirPort Utility on my MacBookPro. I've tried unplugging everything and waiting to reset cable modem and Time Capsule.
Before I got the Time Capsule, I used a wireless router. The only way I can get Time Capsule to work is as a guest on my old wireless router network. I can't get the Time Capsule to configure itself directly with my Time Warner Cable Modem.
Any advice would be most appreciated.

This situation is pretty common now and it has nothing to do with the any of the routers but rather how cable modems are configured to work. They seem to latch on to the first device connected to them whether it be a router or a computer and will not allow any other device to access their network. The solution is to power off the cable modem and wait a minute. While you're waiting disconnect the old connection from the cable modem. Power up the cable modem and then connect the new device, router or computer, to the cable modem. Give it a few seconds to complete the connection and you should be ready to go. You have to do this every time you switch connections to the cable modem. This is also why you should set your router to serve addresses so that you don't have to do the cable modem samba when you want to connect a new device to the network.

HT4259 Wanting to extend WiFi from Cable Modem WiFi using Time Capsule

Hello,
I'm trying to extend my existing WiFi in my house that is hosted by my Cable Modem by placing my Time Capsule in my garage (so not connecting time capsule to cable modem using ethernet). I get a WiFi signal from my cable modem in my garage, so can I somehow add my Time Capsule to the existing network to extend it out there? Or does this configuration require I connect it using ethernet?
Thanks,
Jeff

Apple designed the Time Capsule and their other routers to only wirelessly extend the signal from another Apple router....an AirPort Express, AirPort Extreme or another Time Capsule......so the chances that the Time Capsule could extend the wireless network from your cable modem/router are just slightly above zero.
You should plan to connect the Time Capsule using a wired Ethernet connection.
If you cannot run the Ethernet cable.....then a pair of Ethernet powerline adapters might be able to send the signal over the existing AC power lines in your home and garage.

Using a configured AX with a different cable modem

This is probably a dumb question but here goes:
I will be traveling shortly and will be staying in a home with High Speed Internet via cable. However, there is no wireless network as the cable modem is connected to the owners computer using an ethernet cable.
If I take my AX with me and connect it to the modem in the house via an ethernet cable, will I be able to use my current wireless network settings without having to establish a new network?
It seems to me that I should be able to do this but I am not really certain.
Thanks for your help

If I take my AX with me and connect it to the modem in the house via an ethernet cable, will I be able to use my current wireless network settings without having to establish a new network?
If you connect to a cable modem now, you should not need to change any settings on the AX. But, you will need to completely reset the cable modem at the home before you connect the AX to it.
Push the reset button on the cable modem (if available)
Power it off immediately and power down the AX
Pull the battery (if easily accessible)
Wait at least 15-20 minutes
Connect the AX to the modem with an ethernet cable
Power up the modem by itself and let it run a few moments
Then power up the AX the same way
Then power up computers and devices the same way.
You'll have to completely reset the modem again when you disconnect the AX in order for the modem to recognize the owner's computer.
In other words, whenever the device that is connected to a cable modem changes, you have to completely reset the modem first, or it will not associate with the new device.

Can I configure a wireless home network with two cable routers (both with separate connections to the same cable company)? Issue is poor signal strength even with multiple Airport Expresses added to the network.

I have a wireless home network consisting of a time capsule, two airport expresses and a cable modem. Even with this configuration I get a very weak signal in much of be condo - the walls, etc. are solid concrete. I want to see if I can add another separately connected cable modem and connect one of the existing airport express to it by Ethernet cable. If so, this would give me two wired hubs and greatly improve signal strength. I do not know if this configuration will in fact work or if I will just wind up with two, separate and unrelateable networks. Unfortunately, there is no way to run any additional Ethernet cable and I doubt simply adding more Airport Express will help. Thanks.

Try Ethernet over Power adapters.. these are very popular for your kind of environment.. being able to make non-wireless link to another area where you can setup a wireless access point.
Airport Express are not great for wireless power.. if you really have issues with wireless strength in a bad environment apple stuff is not the way to go.
The comparison chart here.
http://www.smallnetbuilder.com/lanwan/router-charts/bar/58-2_4-ghz-dn?see=P_F
This is their worst test location you can also see averages.. the latest airport extreme.. is there a long way down.. and that is a much better wireless device than Airport Express.
The Ubiquiti power AP is small cheap and designed for precisely this duty.. useless in an apple wireless network.. you will need to run ethernet or EOP adapters back to the main router.. but if the normal omni directional antennas don't provide enough signal you can get directional ones.. I suspect you can cover your whole apartment with a pair of these and high gain directional antenna.

Why has my native windows 7 Pro-64 network to a windows 7 Pro-64 VM has slowed to a crawl and freezes, after the new Arris cable modem was installed?

Please appreciate the details, so the complete situation can be visualized:
The office network:
New Mac Mini PC running Win 7Pro 64, (in boot camp), networked to an iMac running the same Win 7 Pro 64, VM, UNDER Fusion 7Pro.
To review: My treatment rooms former dell PC/running vista business/ running the server and network versions of my Dental practice mgmt & X-ray capture apps, had no probs WLAN to the front desk iMac running the same PC client dental network apps under the same vista business, & Fusion 4. The dell slowly fried its power supply .
I could not wait to replace it with a Mac mini/ boot camp/ win7 pro 64 bit, as it has to run natively to capture X-rays. The front desk iMac was also upgraded to os10.10.3/ Fusion 7pro/ and its own matching Win7 pro 64bit. The iMac is wired and WLAN connected to a netgear d600 router and a Time Warner Cable modem. The modem then failed and was replaced by an arris modem. As the Arris was configured out of the box, the network ran much slower slowed, as compared to the original modem. BUT- The Vonage 2 line phone system stopped working- no incoming or outgoing voices could be heard after it rang. Then twc remote configured it and the phone now works, but the network iMac slowed to a crawl, and now freezes when accessing the Mac Mini PC dental server to edit or enter data. The Mini perfectly accesses the internet via wifi. It accesses the front desk canon printer by wifi, and can print share they the iMac that is wired to the printer, as well, BUT, the network connection is a spinning pinwheel. The front desk imac easily finds the Mac Mini PC server on the network. It connects easily by entering the servers IPv4 address SHOULD THAT last value change. But if data isn't entered in slow motion, the window and app freezes, and has to be force quit by Task Manager!
Cause:
1. I think TWC switched the cable modem from the default- Non Bridged, to Bridged mode. Could this be the cause?
2. The network setting in fusion, on the iMac is auto detect, a setting that always worked with vista and with the new Win7 system, before TWC installed the new arris modem. 3. Switching to NAT does not work at all is there a different setting to use?
3. Does the Netgear Router have to have a port or pref configured so as not to block the Server.
4. might in need an Access Point (I have an extra netgear wdr3400) ).
5. Do I need an Extender that plugs into the AC LINE?
I hope this info helps.
PS:(some addtl info:
1. File sharing works fine between the minis -Mac and boot camp sides and between the iMacs- Mac and VM sides and between eother side to or from either of the 2 computers! 2. Also either office computer and all of my my home macs , (& my iPad, & iPhone), can access each other instantly and flawlessly, with splash top streamer and jump desktop remote apps, as controller or as client! In fact, the front desk iMac can remote control the mini PC AS IF YOU WERE DIRECTLY ENTERING INFO I TO IT!
SO I think it's either a misconfiguration in the TWC cable modem &/or some additional pref to config in the router? Thanks so much for your help, (been using VM's since VPC1. & Win95 in a iMac, 1999, DV MODEL! (TWC BLAMES VONAGE FOR NOT OPENING SOME PORTS IN THE TELE MODEM. Vonage blames TWC FOR NOTopeningj ITS PORTS IN THE CABLE MODEM, when they meant the ports on the Netgear. They have passed the buck for 6 weeks with not even a guess at what to do. VERY FRUSTRATING! Again, thanks to all!

Okay Saint Steven, I'll bite:
I read your description multiple times, very carefully, and I am still confused. May I suggest the following:
* Follow basic troubleshooting procedures. Isolate each individual problem. Don't try to get everything working at once. Make one change at a time.
* If I read your description correctly, the Netgear D600 (??) Router is the office LAN (not WLAN). Connect each piece on the LAN separately one-by-one, and test each piece individually. Get your LAN and its devices working first. Forget about the Vonage and the Arris Cable modem.
* Next, look at your Internet connection. Again, try each piece separately. Depending on how the original cable modem and the new Arris cable modem are configured, you may also have to adjust the configuration of the Netgear D600 Router.
* Finally, if you are still having problems, try to organize your thoughts and presentation before you post again. List each element in your network. List how each element is configured. Be systematic.
"Arris cable modem" does not help much - some are simple bridges, others are routers, etc.
To answer your questions:
1. I can't tell from your confusing description, but I don't think so. It seems like the problems are associated with the system changes you made (replacing Dell, etc.) and the problems seem to be isolated to the local LAN.
2. Auto detect should work, but it is easy to change and test, as long as you change one thing at a time.
3. No. The Netgear router should allow all communications on the local LAN. Could you have put the "server" in the DMZ?
Note: I could not find a Netgear "D600" model in a web search. Do you mean N600?
4. No. I doubt that you need an additional access point. Based on your description, everything appears to connect to the LAN.
5. No. See 4.
To repeat myself:
* Do careful, systematic troubleshooting.
* Provide carefully written, detailed description of your network and system configurations when you ask for help.
Good luck!

How do I use AE to allow more than one device with my cable modem?

I connected by AE to my cable modem at my house in Japan and it works fine on "bridge mode," but only for one device at a time (this laptop, but not my iPod Touch, or vice versa). As soon as I connect a new device, it will kick the other one off. It seems that my cable modem here will only allow one device. Is there a way that I can use my Airport Extreme to allow more than one device and not have to pay the Internet provider extra for multiple IP addresses? How do I go about this? Do I select "share a public IP address" or do I select "distribute a range of IP addresses?" I tried these options but obviously wasn't doing it correctly, because then I lost the connection for everything... Thanks!

It would be best if you "hard reset" the Airport Extreme to clear out the old and conflicting settings and then reconfigure it again.
Hold in the reset button until you see the amber light begin to blink more quickly. Keep holding for another 3-4 seconds when you see this and then release the reset button. That will get the Extreme back to the original starting point.
After you have powered the modem back up after the full reset, you will need to reconfigure the AirPort Extreme again. If you are using he guided setup in AirPort Utility, you will choose the option to "create a wireless network" during the setup.
If you are using the Manual Setup, the Wireless Mode will be "Create a wireless network" and the setting for Connection Sharing would be "Share a public IP address". Adjusting the Connection Sharing setting would be the last thing that you do before you click Update to save settings.
Here, I am assuming that you have a simple cable modem (it will have only one ethernet port), correct?

Setting up my Airport Extreme properly with multiple routers on a home network

I have a 4 bedroom house that over the years has had router after router added in different rooms. I recently bought an airport extreme and an airport express as I am getting sick of not being able to network everything as well as to have one strong wifi.
So I have set up the Extreme in my office and the express at the far end of the house and it's doing wonders in boosting the wireless signal. This is what I am trying to solve:
How do I make all the wired routers apart of my wired and wireless network? The router/modem that was installed by Verizon obviously should stay. I read in another forum that NAT should be turned on and all other routers shouldn't but would be bridged. I logged into the admin settings for the router and couldn't find any place to change this.
As you can tell, I am no IT. So I am sure this may all be confusing. My ultimate goal is to have a shared hard drive on my airport extreme and shared printer on my express and all computers on the same network, communicating to each other. Currently I have 3 routers + airport extreme and express all connected.
Hope someone has the patients to help me out.
Thanks.

Good diagram!
In that case you definitely want the D-Link to act as a switch, and its manual describes how to do it:
(page 10)
Connect to Another Router
If you are connecting the D-Link router to another router to use as a wireless access point and/or switch, you will have to do the following before connecting the router to your network:
Disable UPnPTM
Disable DHCP
Change the LAN IP address to an available address on your network. The LAN ports on the router cannot accept a DHCP address from your other router.
To connect to another router, please follow the steps below:
Plug the power into the router. Connect one of your computers to the router (LAN port) using an Ethernet cable. Make sure your IP address on the computer is 192.168.0.xxx (where xxx is between 2 and 254). Please see the Networking Basics section for more information. If you need to change the settings, write down your existing settings before making any changes. In most cases, your computer should be set to receive an IP address automatically in which case you will not have to do anything to your computer.
Open a web browser and enter http://192.168.0.1 and press Enter. When the login window appears, set the user name to Admin and leave the password box empty. Click Log In to continue.
Click on Advanced and then click Advanced Network. Uncheck the Enable UPnP checkbox. Click Save Settings to continue.
Click Setup and then click Network Settings. Uncheck the Enable DHCP Server server checkbox. Click Save Settings to continue.
Under Router Settings, enter an available IP address and the subnet mask of your network. Click Save Settings to save your settings. Use this new IP address to access the configuration utility of the router in the future. Close the browser and change your computer’s IP settings back to the original values as in Step 1.
Disconnect the Ethernet cable from the router and reconnect your computer to your network.
Connect an Ethernet cable in one of the LAN ports of the router and connect it to your other router. Do not plug anything into the Internet port of the D-Link router.
You may now use the other 3 LAN ports to connect other Ethernet devices and computers. To configure your wireless network, open a web browser and enter the IP address you assigned to the router. Refer to the Configuration and Wireless Security sections for more information on setting up your wireless network.
While reading the above bear in mind the Verizon box is your router. Don't overlook any of the details in these instructions - read all of it and understand its implications. If I were doing it the first thing I'd want to know is how to reset the DIR-601 to factory defaults since I'd be sure to muck it up about a dozen times before getting it right.
It sounds as though your Express is configured correctly. It is providing a wireless access point for your wired network, the one created by your Verizon router.
The optimal configuration for this design is to configure the Express to create a network using the exact same wireless network name and password as the one created by your Verizon router, otherwise you will have two wireless networks. Leave its "channel" on "automatic" so it won't conflict with whatever the Verizon is using.
It will look a little like this:
I'm assuming some of your devices still need 802.11g so the "radio mode" will most likely need to be b/g compatible.
When everything is up and running, experiment with the wireless transmitter power for the Verizon router as well as the Express. It's best to use the least amount that will work for you, so as not to create needless wireless interference for everyone else. This also minimizes the possibility of people piggybacking on - or trying to hack into - your wireless network.
As far as getting your Windows computer to see your external HD, I haven't a clue. I'm sure it's possible but I'm not a Windows expert.

Multiple routers/networks on one cable modem

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