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...

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[WRT54G] What type of cable to connect router to cable-modem?

Hi,
What type of cable do I have to use to connect a WRT54G router to a cable-modem, straight UTP or cross UTP?

Normally you would use the standard (straight through) ethernet patch cable.

Use base station as router instead of cable modem

I have a cable modem that is also a router connected by a wire to the Airport extreme base station. Officially, the Airport should be used as a bridge, disabling the distribute IP option. The thing is this modem ***** and I can't replace it because its from my cable company and also used as IP phone. I would like the Airport to be the DHCP router and handle all the NAT. However, when I turn on the distribute IP option the Airport is freezing.
Note that there is no way to shut down DHCP router on the cable modem.
The modem uses 192.168.1.1 type addresses. Should the airport distribution also be configured to this type of address or to a different one, such as 10.0.0.1.
Is there an optimal way to use the airport DHCP and NAT, bypassing the DHCP of the modem?
Thanks,
Y.

The disabling of the DHCP in the router is a must. Without first disabling the router, you will have DHCP conflicts.

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??

Airport Extreme saying no connection to the internet - cable modem still showing all is good. Airport Extreme light is still green.

I am having an issue where my airport extreme is saying there is no connection to the internet but still shows a green light and the status lights on the cable modem are all good. This is affecting both wired and wireless connection.
Today I had an issue where my iMac (wired) and other wireless devices could not connect to the internet but my work PC (windows 7 and also wired) was connected fine...in fact I was on a VOIP call at the time and had no issues. The only way I have of resolving this issue is to power cycle the airport by unpluging it.
Also, during this time I am unable to access the airport base station through via the airport utilities on my iMac, iPhone, or iPad.

I had the same experience yesterday when my airport extreme is green, cable modem has no problem and no internet on wired iMac or no WiFi. After talking to the cable company, there is nothing wrong with the cable modem and the line, the problem is in the System Preference>Network>Advance>DNS of the iMac. I don't know why as it seems like someone just turn my entire set up upside down. The only thing that I can relate to is that I was trying to figure out with Back To My Mac feature in iCloud between office and home.
In the Network, my DNS server somehow is 10.0.1.1 which is internal Apple IP. Take that out and you would see the actual DNS Servers from the providers.
Also when I look at the airport extreme through airport utilities, in Network setting the Router mode is Off (bridge mode). Once change this and everything is good to go.

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!

Connecting Cisco 2821 Router, Switch, and Cable Modem

Hey everyone,
I am currently in the Cisco Network Academy at my school and just finished CCNA 1. I have a few questions though.
I am purchasing new equipment and that equipment includes:
1-Cisco 2821 2-port Gigabit Router
1-Linksys SE3016 16-Port Gigabit Switch (unmanaged)
1-Cisco WAP4410n Wireless Access Point
1-Motorla SurfBoard Gigabit Cable Modem (no router built in-Just standalone Modem used with Comcast Xfinity High Speed Internet)
1-12U Network Rack (not enclosed)
I am confused on how I will connect the cable modem to the router and the router to the switch and the WAP so that I still have WiFi. Since the router only has 2 Ge Ports, how would I cable this up?
If my assumptions are correct, would I do the following set up?
Take the Cable Modem and run a Straight Thru to Port 1 of the Router.
Connect the Switch Port 1 to Port 2 of the Router using a Straight Thru cable (I believe I will most likely have to Subnet a network, won't I?).
Connect Switch Port 2 to WAP using Straight Thru Cable (so I still have WiFi in my home).
Connect all my computers and other devices to the Switch (this includes several PC's/Laptops, two printers that are ethernet, two TV's that are ethernet, an AppleTV and a Blue Ray Player that are both ethernet, and some Cisco Powerline Network Adapters).
Will that set up work?
Also, how would I configure the router to work with my cable modem AND act as a DHCP Server so that all of my devices get IP Addresses? I have the Cisco Command Guide Book, but it is confusing to me as of now.
Thanks!
Chris

A good start but a few points I would make.
If you set the clock manually, you may find it resets itself after a router reboot. I would look at pointing it at an NTP server:
#ntp server x.x.x.x
#clock timezone GMT (Assuming you are UK based)
Although not required, I would put a description on each of the interfaces as it may help identify them later if you are not physically in front of the Router.
#interface gi0/0
#description WAN
Same for LAN
You have set up your LAN subnet with a /16 subnet mask which is effectively 10.0.0.1 - 10.0.255.254. This is a large subnet allowing over 65k hosts which is not best practice on enterprise networks. It probably won't cause you any issues but I doubt you will have any more than 254 hosts so personally I would use a /24 subnet (255.255.255.0)
The only major thing missing is NAT which needs to be configured on the router to translate the LAN IP addresses from their 10.* private range to the Public IP address on the Gi0/0 WAN Interface.
Firstly you need to define the 'inside' and 'outside' NAT interfaces which is fairly self explanatory:
#interface gi0/0
#ip nat outside
#interface gi0/1
#ip nat inside
Gi0/0 is your outside interface because its facing the Outside world (i.e the internet) and Gi0/1 is your inside interface because its facing Inside your LAN.
Then you need to tell the router which addresses to translate against by first creating an access list:
#ip access-list standard LAN-Addresses
#permit 10.0.0.0 0.0.255.255
Finally you need to tell the router to start translating:
#ip nat inside source list LAN-Addresses interface gi0/0 overload
Oh, I have just noticed that you do not have a 'default route' configured. A router forwards packets by first looking up the destination IP address of the packet (i.e where its going) in it's own routing table. Obviously home routers are not going to have an entry for every Public IP subnet on the internet so they use something called a default route which effectively says 'If I cannot find an entry for this packet in my routing table, use the default route'.
As you are on DHCP and your IP address (and even default gateway) could change on your WAN interface, I would not bother with the next hop address in the default route but rather use the outgoing interface as below:
#ip route 0.0.0.0 0.0.0.0 gi0/0
Hope this helps!

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

WRT54GS v7.2 Resetting Cable Modems?

Hey guys,
I'm posting here because I'm trying to cover all of my bases. I've been having issues where my cable modem would do a partial reset, and while in games it would act like a big lag spike. Going through Comcast, they tested my levels and everything comes back phenominal. They believed that it may be related to my games (World of Warcraft, Call of Duty 4; PC) taking up too much bandwidth, and causing the "MTA" to reset. The modem was an Arris Touchstone modem, and when it would reset all lights except for Downstream, Upstream, and Power would shut off; then turn back on and everything was fine. I was unable to forcefully reproduce this issue.
Comcast provided me another cable modem, so now I'm running two (one strictly for internet, the other strictly for phone). The same day of getting the new modem (also a different kind), the issue occurred again. If I could say when the issue happens, it's whenever I'm connected to a Ventrilo server + one of the games at the same time. Comcast is out of ideas and is continually saying that it's the games fault, however I still don't believe that. Posting elsewhere, someone recommended that perhaps the NIC is sending a power packet through which is causing the modem to reset... but since I'm connected to my WRT54GS 7.2 (latest firmware), that would have to be the case. The modem does not produce any error logs that would help.
I searched the forums, and someone stated that their router (different model) reset their modem, however Linksys RMA'ed his existing one and his new one doesn't do this. Would Linksys do this for me? Unfortunately one of the only ways of testing to see if the problem occurs is by isolating my computer directly to the modem. Unfortunately since I cannot force the issue to occur, I could probably go 2 weeks without having the issue and still not be sure if it's fixed.
Any ideas?

Since how long you have been facing this issue ? It's tough to tell, I know I never experienced this issue with my old router, however I can't be sure if the issue occurred immediately when getting the router or a short time afterwards.
How often does this happen ? Timing varies. I can go days without it happening, or I can have it happen multiple times in one gaming instance.
Did you reset your router and re-configure it ? I have not done this. My router has minimal configuration other than setting a wireless password and maybe a port or two forwarded.
I know I won't be able to verify 100% that it is the router, however it is kind of strange that this issue now occurs on two modems that are completely different make/model from each other, and never happened on my old router. It just really stinks because I can't just connect one computer for a weekend to try it without the other one being disconnected, and as stated since I can't force the issue to happen, I could do this multiple days in a row and have no answer. I can't connect straight to the modem, have it not happen and say it's fixed. It's just too intermittent to do that.

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.

Setting my WRT54G router up WITHOUT a modem!

Hey guys. When I set up my router, and install it for DHCP, the status shows like this: IP-Adress: 0.0.0.0, or like everything is at 0.0.0.0 ??? =( Right now im connected via a Switch. PLEASE help me!

1)make sure the modem is connected to the internet port and the internet LED is lit on the router
2)if you have a cable modem...on the router ui , under the "setup" tab , click on "mac add clone" subtab , enable it and click clone.. save the settings and do a power cycle
3)check the internet ip add ... if getting a valid ip add, try going online
4)if you have a DSL connection , under the "setup" tab...select the "internet connection type" as PPPoE .. enter the username and password provided by the ISP ..
5) go to the " status" tab and check whether the PPPoE login status is connected and there is a valid internet ip add ..

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

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.

Wireless router without a cable modem

Can this be done? Where i live i dont have access to a cable modem but i would still like to have a wrieless net work in my house, any sugestions?

ok, last time i tried to install a router it would not let me install it without a cable modem, so a router like the WRT610N would do what i need it to do as far as being able to install it without a cable modem correct?

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?

Wrt54gs router to internet cable modem connection drop

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