EA3500 loses connection to Arris cable modem and goes dormant

Just installed the EA3500 within the last 2 weeks. I've had 3 instances now where I come home
from work and the port light on the cable modem is not blinking to indicate a valid connection to
the router, all connections to Comcast are green and working. Unplugging the power to the
EA3500 causing a reboot brings the connection back up. Would appreciate hints on how to
debug this - firmware appears to be the latest and greatest (1.1.39.145204). The cable modem
connection to my older D-link router worked fine without issues. I have 1 hardwired link on the
router to a Dell desktop system and an array of wireless devices, all are dead to the net when
the router acts like this. One last piece of info- only the power light appears green when it's in
the hung state - the yellow and green LEDs to the hardwired link go dark.
Thanks for any help,
Chris

What setting do you have for your Internet connection in the router?
Please remember to Kudo those that help you.
Linksys
Communities Technical Support

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Connecting Motorola SB6121 Cable Modem and AirPort Extreme

I moved into a new house a couple of days ago so of course the first thing that I needed to do was get the home wireless up and running. My ISP is through Comcast. I purchased my own cable modem (Motorola SB6121) instead of renting and used my own AirPort Extreme as the wireless router.
First, if you're purchasing your own cable modem, you will need to contact your ISP and provide them with the HFC MAC ID on the cable modem. Once you've gone through the motions, you will be able to connect your Mac (in my case Macbook) directly to the modem via ethernet cable and access the internet.
Issue:
When I connected the SB6121 to the AE, I could connect wirelessly to the AE, but I did not have access to the internet. So, basically the SB6121 and the AE were not talking to each other despite being physically connected via ethernet cable.
Solution:
After days of searching for online answers and forums (and trying different solutions) I was able to successfully get everything up and running. Make sure that you have 2 ethernet cables available.
Here are the steps.
I restored my AE to factory settings just to keep everything simple. Here are instructions: http://support.apple.com/kb/HT3728 Once you've restored your AE, make sure that both the AE and the cable modem are unplugged from their power sources.
Plug in the power to the SB6121.
Connect your SB6121 directly to your laptop via Ethernet cable. Test to ensure that you have internet accessibility by going to any website.
Remove the ethernet cable from your laptop and plug it into the "internet in" jack in the back of the AE.
Power up the AE.
Connect your laptop to the back of the AE using ethernet cable #2.
Launch a browser. You should now be able to successfully connect to any website.
Assuming that you reset your AE to factory settings, it should just be broadcasting the generic "Airport Extreme" SSID. Disconnect the ethernet cable and connect using wireless to the SSID. Launch a browser and you should be able to connect to the internet.
You can now use the AirPort Utility to configure the AirPort settings.
I assume that this solution would work with any of the base stations.

I was having the exact same issue tonight. Just purchased the AE Model A1408 and haven't been able to maintain an internet connection on my iMac whenever I tried hooking it up via the Airport Utility application. So after I had the SB6121 connected to the AE and the AE connected to my PC with no luck, I then went to the Network icon in System Preferences. Clicked on "Assist me...". Then clicked on "Diagnostics..." and followed the directions which basically had me first power down the SB6121 modem and power it back up. Then I powered down the AE router and powered it back up. At that point I was now getting an internet connection. I then took my ipad 2 and went to the Wi-Fi settings and noticed it was asking me to setup a network through my AE. I selected that and went through the simple steps to set up the network and password and now it all works. I am a novice so don't ask me why but I now get a green solid light on my AE. I can connect other devices wirelessly. I can still access the internet on my iMac. For whatever reason, using the Airport Utility on the iMac doesn't work in my case and using my ipad to set up the wireless network did the job.

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If this base station is actually the "snow" then you will need a Mac or PC that can run a version of the AirPort Utility that can administer this "very old" 802.11b base station. You won't be able to do so with an iOS device or Mac running Lion or newer OS.

AirPort Extreme/Router/Arris Cable Modem

I have Cable internet, and I'm using an Arris Cable Modem. I got a router a while back, and it was working great between my PC and PowerBookG4, when one day it stopped working. I eventually through the router out. Yesterday, I tried connecting the Arris Cable Modem wire to my AirPort Extreme. I turned on my Powerbook, and in the little AirPort icon I had 4 bars, so I assumed I had a connection. I opened up Safari, but I couldn't get anything. I tried restarting, reconnecting, and anything else I figured would effect the connection. The lights on the AirPort express, when I connect the wire, are...1st one is blinking, but slowly, 2nd is steady, 3rd blinks. I'm wondering if theres something preventing me from using the Cable Modem w/ Airport Express.
- Thanks in advance.

Connect the cable modem to the Airport Base Station's WAN port (that's the port labelled with the "circle of dots" icon). Then pull both the modem and the Airport Base Station from power for at least five minutes. Then plug the modem into power and wait a minute. Then plug the Base Station into power and wait a minute. Then try internet access via the Base Station again.
That's my only bit of advice. No other suggestions if that fails to work.

Connecting Help using Cable Modem

I am trying to connect to the internet using a cable modem. It works fine on my PC but when I try to plug it in to my Macbook, I can't connect. First off I figured I could just plug it in and hit connect, or it would connect automatically. Because the whole reason I got a mac was because of the "easy-ness" surrounding them. So can anyone guide me to somehow connect.

The problem likely is not your Mac but your cable modem.
Most cable modems, for some unknown reason, lock themselves to the first device they see. This means that if your PC is the first device to use it, then only the PC can use it - it won't talk to the Mac at all.
The first solution is simple - power cycle the modem. This resets the lock so the Mac can use it (as long a the Mac is the first device), but then you have the same situation with the PC.
The better solution is to get a NAT router that can take the connection from the cable modem and share it between both Mac and PC simultaneously. As far as the cable modem is concerned, it only sees the router and the lock does not matter. Numerous vendors make numerous products that will fill this requirement.

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!

My airport is not connecting to the internet. I have a cable modem. and i'm on the internet now connected directly to the modem. what can i do?

my airport is not connecting to the internet. I have a cable modem. and i'm on the internet now connected directly to the modem. what can i do?

I would recommend that you do the following as a minimum:
Power-down the modem, AirPort base station, and computer(s).
Power-up the modem; wait at least 10-15 minutes to allow it adequate time to initialize.
Power-up the AirPort base station; wait at least 5-10 minutes. Note: The AirPort's status light may continue to flash amber after it has intialized. That is because, there may be some additional configuration items necessary, like setting up wireless security, before the overall setup is completed to get a green status.
Power-up your computer(s).
If the above steps do not solve the problem, start over with step 1 above, but then perform the next steps between steps 1 & 2. above.
Disconnect the AirPort base station from the Internet broadband modem.
While all of the devices are powered-down, perform a "factory default" reset on the base station. This will get it back to its "out-of-the-box" configuration and make setting it up much easier, especially if you use the "Assist me" process within the AirPort Utility. (ref: Resetting an AirPort Base Station or Time Capsule)
After the base station resets, go ahead and power it back down.
Reconnect the AirPort base station to the Internet broadband modem. For the Extreme and Time Capsule, be sure to connect the cable to the base station's WAN (circle-of-dots) port.
Continue with step 2 in the first set of steps.
In this basic configuration, the AirPort base station will broadcast an unsecured wireless network with a Network Name (SSID) of Apple Network NNNNNN. Network clients, connected to the base station either by wire or wireless, should now be able to access the Internet through the ISP's modem. Once Internet connectivity has been verified, you can use the AirPort Utility to configure the base station for wireless security and any other desired options. Please post back your results.

Please help me connect eMac, cable modem, and Airport Extreme Base Station

I connected Ethernet cord from cable modem to Airport Extreme Base Station and then another Ethernet cord from Airport Extreme Base Station to eMac, but I could not get internet access on my eMac that way. I'm only getting internet access by directly connecting eMac to cable modem. Can someone please help me with a step by step explanation of how to set these 3 machines up so that I can have internet access on both my eMac and, wirelessly, on my new MacBook. Thank you very much in advance.
eMac & MacBook Mac OS X (10.3)
eMac & MacBook Mac OS X (10.3)
eMac & MacBook Mac OS X (10.3)

jenngee, Welcome to the discussion area!
Ensure that you power off the cable modem for a minute or so when you switch it to another Ethernet device.
Ensure that you are connecting the WAN port of the AirPort Extreme base station (AEBS) to the cable modem. The eMac should connect to the LAN port.
The steps for setting this up can be found in the "Designing AirPort Networks" (direct PDF link) document. Look through that document and try to get it setup. Then return here if you have more questions. Don't forget to post what you tried and the issues you encountered.

Connecting AX and ethernet wire to cable modem (and ARD).

Hi all,
This has to be easy, but after 10 minutes of searching, I can't readily find the answer.
I have a cable modem (with one port) which works with my Macbook just fine. I plugged in an Airport Express (and used wireless only) and it works fine also, EXCEPT:
When using Apple Remote Desktop (the latest version) to control the Macs at my office, the status of all remote Macs is: Screen Sharing. When I connect to a remote system, I can see and control that Mac, but I can't copy anything either way (from remote to local or visa-versa).
When connected to the cable modem with an ethernet cable, everything works fine.
SO, I would like to connect maybe a 3 port hub to the cable modem and use both the ethernet cable and the AX (for other computers & iPhone) at the same time. Will this work? Can someone suggest a good hub/switch for this if it does?
Secondly, is there a way to use ARD on a wireless computer? It would be nice to go to a hot-spot and control my remote Macs.
Thanks.
mike p.

SO, I would like to connect maybe a 3 port hub to the cable modem and use both the ethernet cable and the AX (for other computers & iPhone) at the same time. Will this work?
No. You need a router not an Ethernet hub (or switch). The AX can't do the job because it only has a single Ethernet port.
Secondly, is there a way to use ARD on a wireless computer?
Sure. It works just like any other computer behind a router. You must configure the computer to be at a fixed IP address and then forward/map the appropriate ports through the router to the computer.

The connection between your access point, router, or cable modem and the Internet is broken.

At random points throughout my laptop usage, I randomly disconnect from the internet and receive these 2 messages:
1. The connection between your access point, router, or cable modem and the Internet is broken.
2. The default gateway is not available.
It fixes the issue for a short period of time, but constantly happens. This is really starting to annoy me. I have no problems on any other internet, and other people i live with are connected with no issues to the internet. I have tried a number of solutions
online that has "worked" for others to no success such as resetting the router, fooling around with command prompt, and changing the performance settings to not drop internet when low on power. Does anyone have a solution for my technical problems?
I am running Windows 8.1 on a Lenovo ideapad that is less than a year old. I will be honest I am not a very knowledgeable person when it comes to computers, so please use simplified explanations.

Checked this ?
http://answers.microsoft.com/en-us/windows/forum/windows_7-networking/window-networking-troubleshoot-error-the/c130ede9-757e-4224-9ae8-3cceb82eeb74
Arnav Sharma | http://arnavsharma.net/ Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading
the thread.

CONNECTING AE TO CABLE MODEM

Hi.
I have an Arris cable modem connected to my MacBook and everything works fine but when I connect my AE everything seems go go wrong.
I have a static IP and I transfered the details to the AE via ethernet and then plugged the cable modem into the back (it is a 96.x.x.x).
I managed to get a green light on the AE and even connect the MacBook to the AE via wi-fi but I don't seem to be able to access the internet. Network preferences shows a new IP address now (10.x.x.x) but the Airport utility shows the AE has the 96.x.x.x still.
Should I be doing something else?
It works fine when I unplug the AE and plug the laptop back in...
Thanks!

stevem98, Welcome to the discussion area!
Most cable modems will only talk to a single device until they are reset. Powering off most cable modems causes this reset to occur. When the modem is powered back up, the modem detects the new device and will talk to it.
The reset needs to happen every time the cable modem's Ethernet connection is switched from one device to another... like laptop to AirPort Extreme base station (AEBS).
Some cable modems have a button on the back for the reset.
Some cable modems have a small internal battery which must be removed for the reset to occur.
Some cable modems must be powered off overnight so that equipment back at the ISP can be reset.
Did you power off the cable modem when switching the connection?

What is the proper config for the Airport Extreme when a Voice over IP device is between the cable modem and the router.

What is the proper config for the Airport Extreme when a Voice over IP device is between the cable modem and the router. Its a VoIPo device. The cable modem is connected to the VoIP WAN port and the LAN port on the device feeds the Airport Extreme. The VOIP is working fine, and my Mac are getting 10. addresses from the Airport Extreme. But I do get confict messages and lose my connection periodicaly. Looking for help.

Its a VoIPo device.
Per chance, is this device the Grandstream HT502?

EA3500 loses connection to Arris cable modem and goes dormant

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