Adding Wireless to Comcast Cable Modem

Hey Folks, use to be a Geek way back in the day of the PCXT (for you old timers) My daughter away at college needs to add wireless to her Motorola 6121. What's the best way? Adding a wireless router or swapping out the modem for a model with wireless. How hard is it to configure a wireless router to work with the existing modem?
Thanks for the help.
Bob

I like Belkin. I got a refurbished Wireless N router for $9.99 a year ago and it still works today. No problems with it whatsoever.
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Having Trouble getting airport to connect to new comcast cable modem

Help, I'm been at this for 2 days now. I don't know why I'm having so much trouble.   I'm trying to transfer from DSL to comcast cable modem and running into lots of problems getting everything to work.
I can't get my airport extrreme to talk to my new comcast cable modem. I've tried everything, restart the modem, restart and reset the airport. chaning out cables, ensuring the green light is at the cable connection of the modem and the airport.
I can find two issues I can't resolve. one, the 10.0.0.1 webpage for the modem/router doesn't response, pings fail to 10.0.0.1. Yet, my computer is talking to the internet nicely using an ethernet cable to this cable modem. I've talked to comcast for hours, to many different people, over Many hours, and they either say the box is working or hang up on me or transfering me to nowhere land.
The airport never goes to a green front light, and airport utility and always dispay an empty IPv4 address. I've tried everything, and can't get the airport to renew it's DHCP license.
Where am I going wrong? I've search the web, and tried the solutions I found. Is my 3 year old airport too old? or is my comcast box bad? I checked the airport firmware and I'm on the latest version.
After getting this working, I still have an OOMA to transfer over to the comcast modem. Am I kidding my self? Help please.
selina

ok, answering my own question, Turns out, there are three ways to do a hard reset on my airport extreme. Only the last method worked. The easy reset, from the Airport utility menu ( clicking the restore default setting) didn't make my airport talk to the new comcast cable modem. The second way, by pressing the reset button while power up didn't work. The harder third way, hold in the reset button and then plugging in the power cord did work. and the airport is now playing nicely with cable modem.   I wasted how many hours before reading this method in the apple support pages ? and then remember doing this trick once many years ago.
I also wasted a few hours trying to get ooma to talk on the new cable modem, and the hard reset key for OOMA to play nicely with a new modem can be complicated. This method requires it to be connected and working ( plug ooma tele into the older DSL network), hook a phone to it, dial * # * # 0 9 9, (star, pound, star,pound then 099) and saying yes.    That reset it to factory settings letting it reconfigure itself to a new modem gateway.
I still can't get into the gateway web page 10.0.0.1 to change the admin password, Don't advertise that. I get no reply to request or to pings. I think some comcast rep changed a port setting so I can't reach it. So I have an open wireless connection and unprotected.
I hate switching my network provider. Now I need to write it all down, for when I get fed up with comcast and decide to move to another provider.

IBook and Comcast Cable modem--can't connect to Internet? Please help

Hello everyone!
I have an ancient iBook . Here are the stats:Mac OSX version 10.0.3(told you it was ancient), 193MB, PowerPC G3. I bought it off of eBay about two in half years ago and it didn't come with an Airport card...I only received a laptop, the original box, some cds, and the adapter. I have a Comcast cable modem and I was wondering if anyone could help me figure out how to connect my iBook with the modem. Prior to Comcast, I had Bellsouth and all I had to do was simply unplug one end from my mother's Dell and plug it into my iBook and it instantly connected. However, I can't do it with the Comcast. Can anyone tell me how? Pretty please?
iBook Mac OS X (10.0.x) PowerPC G3, 193MB

You likely need to contact Comcast to get them to help you set up the iBook for your new cable internet service. They should be able to walk you through it.
In case it may be an encryption problem, you may want to check out iFelix's post in this thread:
http://discussions.apple.com/thread.jspa?threadID=877766
Good luck.

Problem with Comcast cable modem..

Ok, I am trying to set up a connection using my Linksys WRT54GS V6.0, I have followed all the steps given in the Easylink setup software, but when I try to go on the internet, it never connects. Can someone please tell me how to successfully install a WRT54GS router to a comcast cable modem? Thank you very much.

Actually, I like to use the direct approach when setting up my routers. I suggest you login using a browser like Firefox or Internet Explorer. Type in the router's IP address, in the address bar, in the form as http://192.168.1.1 . Every router has some form of IP address. Yours might be different. Check the manual. Once you type that in, then you can login to the router with the standard password preset with the router from the factory.
Once inside the firmware of the router, then you can make sure everything is communicating with Comcast. By logging in this way to the router, you know that the LAN (local Area Network) communications is functioning properly between the router and the computer. If you can not login to the router itself from the computer using the router's IP address, then you might have a cable problem between the computer and the router.
Make sure your Comcast modem works directly to a computer first. If that works, then attach the router to the output of the Comcast cable modem.
There are possibly issues with the MAC address and/or IP address being assigned to the cable modem when the new router is installed. You might have to clone the MAC address. See the following article about: Forcing Comcast to New IP Address
http://jimwarholic.com/2007/05/forcing-comcast-to-new-ip-address.phpMessage Edited by jimwest on 06-06-200701:37 PM
Message Edited by jimwest on 06-06-200701:40 PM

Connecting my airport extreme to comcast cable modem-- AGHHH

I've had three Comcast techies to my house since switching over to their triple play offer. Today, I finally got connected to the Internet, through their cable wired into my house, and connecting their modem to my Mac mini (which does not have wireless card). I want to hook up two other laptops in the house, but can't figure out how I do that? The Comcast guy today said with an ethernet cord. So I've plugged the cord into the back of my Extreme, but the other end doesn't fit into the only slot remaining on the back of the cable modem -- which is labeled "phone"... Does anyone know how I do this?
Thanks,
Jill

You need either a router or an ethernet hub/switch between the modem and the computers to give you the needed ethernet ports. Hubs/switches are cheaper but, depending on the Comcast policy on multiple computers on one modem, may not all work at the same time.
A router, on the other hand, allows up to something like 255 devices to be connected. Instead of the Comcast server passing out IP addresses as would happen with a hub, the router issues the addresses to each device. This is useful when the ISP limits how many IP addresses can be assigned to one account (we had this with our ISP--limit of three--and is why we now use a router).
Basically, the arrangement is:
cable from wall >>> cable modem >>> router or hub >>> multiple ethernet lines out to individual computers
See if this video helps:
http://videos.howstuffworks.com/labratstv/829-episode-6-home-network-primer-vide o.htm

WRT54G and Comcast Cable Modem Setup

Please help. I just bought a LINKSYS WRT54GS and I'm trying to set up a wireless network for my laptop (No other computers on network), and my ISP is Comcast. The model # on the Comcast Broadband Modem is DHG535-2 and the manufacturer is RCA. The computer sees the network but only shows a local connection. No internet. I have tried everything and it will not let get on the internet. I have checked all cables several times and the connections seem to be right. I don't know where to go from here. Can someone please help me? I will be very grateful!
Thanks

Is your problem related to getting on the internet in general? Or are you able to get on the internet, but now you need to get the wireless network setup?
1) There might be some lights on the cable modem that indicate if it is successfully connecting to the internet. On mine(a different model/brand) I have three lights that must all be lit up to indicate I'm on the internet. Whenever they are not all lit up, it is usually an indication that either there is a problem with comcast's network, a problem with my coaxial cables providing the Comcast service, interferance (one time they had to come out and replace some of their equipment at my apartment complex, if you have analog cable and look at the lower channels on your cables TV, 4-10,and there is lots of static, then this might be a problem, a tech told me those channels are close to the range that internet is provided on, so static on them can indicate problems that would also effect internet0, or the lights not being lit up might indicate you hagve registered that modem on their network. There is some sort of process that you have to do when you first get comcast internet service that gets you setup on their network. I believe it registers the MAC address of your cable modem. If the lights are not lit up(this is where you need to refer to your cable modem manual to see what lights indicate problems), then you may need to go through this process or check with Comcast.
In my case I had a CD from comcast in the Startup Package, had to connect cable modem to my PC via USB(what a freaking pain), and then go through the software's wizard to get setup on their network. This also installs some junk on my computer like a usb driver. Additionally, I had a computer with two network cards, and the software would not work correctly on it(kept choosing the wrong network card. I had to actually remove one of the cards, and then go through the wizard.
2) You should be able to connect the cable modem directly to your computer via CAT5, to see if you can get an itnernet connection that way first. This will at least verify that you can get on the internet before you intreduce all the other variables of the router. If you can't get on this way.

Understanding wireless speed re cable modem speeds

If my cable modem runs significantly slower than 11 mbps, say what my Linksys 802.11b router speed is, how is an AirPort Express running at 54 mbps going to give me any more "internet browsing" speed? Wouldn't my high-speed cable access connection in my home be the bottleneck?
I have an iBook g4 with an AirPort Extreme card in it, btw. I'm wondering if an AirPort Express is going to give me any noticable kind of Web browsing speed boost over my cheap DLink 802.11b wireless router.... Thanks for your help!

Though use of WEP or WPA does add some "overhead" to the data transmission, this effect is insignificant and not noticeable given the relatively slow speed of most broadband internet connections. In other words, using WEP or WPA will in most cases not result in any decrease in "browsing speed" irrespective of whether you are using an 802.11b or 802.11g wireless router.
Bottom line - replacing your existing 802.11b wireless router with an 802.11g capable wireless router won't improve the speed of your internet access.

Connecting Wireless Router to Cable Modem /USB

Good evening,
I have searched and searched, and can't find an answer!
My cable modem is hooked up to my PC by a USB plug. On the install of the Wireless WRT54GS, it says to unplug the ethernet from the modem and plug it into the router. I don't have an ethernet , just the USB, and there is no USB on the router. Is there an adapter that fits over the USB to convert it to an ethernet plug? I am lost.....
Any help would be appreciated.
Annie

I have same initial problem and in addition, how to connect using the Linksys WRT54G router, a home network consisting of a pc desktop and 2 MacBooks wirelessly and an HP laptop by wire. I think the answer to the USB problem is to uninstall the USB and reconnect using Ethernet. Possibly with assistance from your ISP? Anybody out there got any ideas?

Connecting Two WRT54GS Wireless To A Cable Modem w/ TIVO, PS3, and Wii

Not real great in the networking thing. Upon reading I have found that you can only use WEP on a wireless adapter pluged into a TIVO (series 2 that is christmas gift to wife) to connect it to the internet, and as a concern of having to downgrade my entire network on my main router to WEP I looked for a solution. I read somewhere that if you cat5e from the TIVO into a WRT54GS you can then use the router to send wireless with WPA (or WPA2) to another WRT54GS that is cat5e into the modem. To complicate things I am giving my kids a PS3 and a Wii for christmas and wanted to connect it to the same router as the TIVO. My internet is Charter Comunications cable. The two routers are Versions 5 and 6. The TIVO is remote and I cannot get cat 5e cable to it so I need to use wireless. All distances are ok for wireless. The "main" router that is plugged into the cable modem is a ver.6 and is set in DHCP. All "gifts" are wrapped under the tree so I can't set those components before christmas. I would like to setup the routers to speed things along. I have a laptop (hardwired ) to the second router to set it up. Two other computers and a HP printer are connected to the "main" router. All computers are Windows XP -SP2.
Questions:
1. Can this be done with these components and keep security on the "Main" router maintained?
2. Upon reading these boards it sounds like I should split my system into two seperate routers with the second one passing thru the main router. How would this be done? What are the settings? Reserve addresses for static in the main router to use in the second and run as one system? Remember I am not to good at the network thing... so be complete in the explaination.
3. If I do things as indicated in question 2 will that leave my TIVO, PS3, and Wii open to attack to the internet? Any way to better secure?
4. Any pointers as to how this really should be done would help. Any better ideas in setup??
Thanks.......

Yep, I wanted to connect them wireless but it sounds like I cant without some issues.
Second choice: Cascade-- Connect routers by Cat 5e and make the second one a WEP that has the TIVO, PS3, and the Wii connected wireless to it. The main Router would have the computers and printer connected to it. The main router would be WPA (2) protected for a wireless laptop.
Is the second choice possible??
Should the second router be with static IP's?? Is this the best way to do this with these types of items connected?
I think this will make two wireless systems but if I make the second one a DHCP enabled one then I think it might cause conflicts with a chance of both routers picking the same IP for a connected item. What is the best method for doing this and keeping some type of security??

Comcast Cable Modem - Motorola SB5120 with Linksys Router issues

Anyone have the comcast typical inet setup with the SB5120, I also use the LinkSys WRT55AG but only hardwired...
I can't get inet access, I've tried numerous suggestions...
When most folks said to clone the MAC addy, when you check the tab in the routers config, does it update itself or do you have to physically enter it.
Message Edited by Tony1969 on 03-05-2010 09:27 AM

On your Router setup page click on the Sub tab "MAC Add Clone" and below check the box "Enable" and below click on "Clone My PC's MAC" and click on Save Settings..... It will automatically update the MAC add of your Computer on the Router.
Once you done with this settings you need to unplug the power from the Router and Modem, wait for 30sec and then first plug the power to the Modem and once all the lights are lid, then you can plug the power to the Linksys Router.
Now check if you are able to go online.

My house has a wired ethernet to many rooms. Can I have my imac connected via ethernet (then to router via comcast cable modem) and also have my airport extreme connected to another outlet?

Not experianced in networking. Current working setup is wireless network with airport extreme. Having problems with signal so may need to expand network with another airport. My house has a wired ethernet to most rooms. What is the best approach to maintain wireless network and also use ethernet wired connections where convienient?

I now wish to add a second Airport extreme but am considering a hard wire connection with 100 ft of cat 6 cable from the Time capsule to the second Airport extreme.
Excellent plan.
Can my network operate properly to extend the network with both a wireless and wired extend functionallity?
Yes, but don't get confused about the second AirPort Extreme, as it would not be configured to "extend" a wireless network.....it would be configured to "create a wireless network" using the same wireless network name, security settings and password as the Time Capsule network. Configure the second Extreme in Bridge Mode.
This Apple support document will show you how to hookup and configure the second AirPort Extreme:
http://support.apple.com/kb/HT4260

Wireless Internet access via requires unplugging cable modem -

I have a brand new MacBook Pro with Snow Leopard (10.6.1) and Airport Express (7.4.2). I have high speed Internet via Comcast/cable modem. I spent 30 minutes with the Apple Tech Support folks and was finally able to get wireless internet access. However, after I shutdown and reboot, the only way I can wireless internet is to unplug the internet cable from both the wall plug and cable modem and unplug the modem, both for about two minutes. This isnt what I had in mind when I crossed over from the dark side (PC laptop world) and am having buyer's remorse. Does anyone know how I can fix this problem (i dont want to unplug cables before each session on the internet)?

Mr. Timmons,
Thank you so much for the response. I thought the complete reboot would work, but apparently not. I followed the directions precisely, even waiting a few minutes longer than suggested for each of the steps. My air express is still blinking yellow. I think the issue has something to do with the DHCP and the IP address which are diifferent. The IP address is one series of number (starts with 169), and the LAN IP address is another number (starts with 10). Status on airport express show yellow for internet connection, and yellow for no DSN servers. When I go to the internet tab of airport utility, it shows the iPv4 address starts wutg the 169 number. When I click on the network tab, the DHCP range starts with the 10 number. When I open the Network Options window, the iPv4 DHCP range starts with the 10 number. I am at a loss as to how to get them to match up (with either the 169 number or the 10 number). V/R sjbgtmo

Vonage between cable modem and Airport Express is a problem

I have my Comcast cable modem connected via Ethernet to the Vonage box which is connected via Ethernet cable to my Airport Express. When I try to connect wirelessly via my Powerbook it's a crapshoot whether or not I can connect to the internet. Mostly the quality is very poor if you can connect at all. If I cut the Vonage out of the equation hooking the cable modem to the Airport Express it works perfect. So Vonage is my problem and I need to change some settings either with my computer or my Airport Express, but which ones? I've been given several different ideas from the information I've sifted through (i.e. change the DNS, change the sharing prefs, get a hard wired router). Oddly enough an old HP computer I have in the basement connected to the internet via another Airport Express has no problems with connection at all. If someone could let me know which of these fixes I am preparing to try would work the best I would appreciate it.

Interesting. So you have two Airport Express devices configured into a WDS, with the one upstairs functioning as the main base station and the one downstairs functioning as a remote base station. And your PC downstairs connected to the remote base station has no problems connecting to the internet. Is that PC cabled to the Airport Express, or does it connect wirelessly to the remote Airport Express?
What happens if you bring the Powerbook downstairs to where the PC now resides. Does the Powerbook then get the same great internet connection as the PC?

Personal file sharing via a cable modem and AEBS

At home, my Internet access is provided by a Comcast cable modem. It used DHCP; however, the address I get assigned rarely changes. What I want to do is use my G5 and an external disk to back up files from my MBP while I travel.
I have a new AirPort Extreme Base Station which I use as my router. Is there any documentation available to download that tells me how to set up the AirPort base station to allow me to mount my G5's disks on my laptop when I travel? I know I need to enable personal file sharing, but how do I get the router to allow me to access my G5's disks from my hotel? I also want to access the disk drive that's connected to my AEBS remotely.
I can do this when I connect via my MBP to my AEBS wirelessly and it works great, but I don't know what to do on the AEBS to allow it to be done from anywhere.
Any tips will be appreciated.

Hmmm, don't have the "Extreme" AEBS here... Express or something, so it looks like this one...
http://portforward.com/english/routers/port_forwarding/Apple/AirPortExtreme/FTP. htm
And the setup has no "continue" button... just the ADD, OK, and then Update buttons.

Cable modem issue/adobe reader issue

1. I have a PB G3 (bronze keyboard) and cannot connect to the internet using a comcast cable modem. BUT if I route the modem thru a wireless router and then plug my ethernet into that I have no problems what-so-ever. The big question is WHY? I would like to ditch the wireless router, if possible.
2. I cannot download Adober Reader 5.0 to my computer. I am running OS 9.2.2 it says it has downloaded and then when I go to install it gets part way through and then stops, doesn't say anything but doesn't continue downloading....

Megan,
Welcome to the Discussions!
If the file has downloaded successfully to your desktop or wherever you have designated your download folder, you should see a file named 'rdrweb.sit'. Double-click on it to decompress and you should see an icon named Acrobat Reader Installer. Now quit all applications, restart while pressing the shift key and release when you see 'extensions off' under the Mac logo. Find the Acrobat Installer and double-click on it to install. You may have an extension conflict preventing the installation...just restart when done.
If you still have a problem, find all versions, if any, of Acrobat Reader already installed, drag them to the trash, then try the install again.
If still having problems, run Disk First Aid and also rebuild your desktop file:
http://docs.info.apple.com/article.html?artnum=10182
Regarding the cable modem - what are your settings for:
AppleTalk (should be set to Ethernet)
TCP/IP (should be set to Ethernet and Using DHCP Server)
The above settings are what some DSL and cable modem companies use. Give it a try; if unsuccessful, call Comcast.

Adding Wireless to Comcast Cable Modem

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