WRT54GX4 trouble with Cable Modem

I will like to receive a IP Address from my Cable Modem ( Webstar - Scientific Atlanta ) but I can. I checked the router conecting it to another router (WRT54G) and works ok, but when I connect it direct to the Cable Modem it loose the IP.
Any Idea ?
Thanks a lot. Frank

Reset your router on the back for 30 secs and try this procedure listed on their site. This will set your router settings to default after the reset. The MAC Address clone procedure is needed for most Cable connection types:
Setting up a Linksys Router with a Cable Modem and a Dynamic IP Address
"Sometimes your knight in shining armor is just a retard in tin foil.."-ARCHANGEL_06

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Airport express connected to iMack with cable modem

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Hello cyclistgeorge,
This may be due to a source of interference.
Wi-Fi and Bluetooth: Potential sources of wireless interference
http://support.apple.com/kb/HT1365
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Setup 1941 router with cable modem and 2 vlan?

hello everyone,
i need a little help setting up my new 1941 router with cable modem using 2 vlns.
this is what i have:
1- 1941 router configured as g0/0 wan port facing isp configured as (dhcp). g0/1 is lan facing the switch (192.168.1.1)
dhcp pool (192.168.1.x)
2- sg300-28pp switch.
3- wap371 AP/ 11pcs..
now everything is working perfect except sometimes we have more than 250 to 300 people trying to connect to the wifi, the router will have no enough ip addresses.
i heard that i can setup 2 vlans to solve this problem? and is there any setup that i have to do on switch and Access points?
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hello Andre Neethling i added network 192.168.0.0 255.255.254.0 to dhcp pool config and it seems that it is working but i am concern that i am going to have problem in the future so please take a look at the running config and let me know if i have everything done right. also we want to order static ip address from the provider for our security camera system and we will not longer receive dhcp ip from them and my router setup is to receive it as dhcp on g0/0 so what i should do about changing the settings on g0/0?
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Building configuration...
Current configuration : 1163 bytes
! Last configuration change at 00:46:35 UTC Wed Apr 15 2015
version 15.0
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
hostname Abdullah
boot-start-marker
boot-end-marker
no aaa new-model
no ipv6 cef
ip source-route
ip cef
ip dhcp excluded-address 192.168.1.1 192.168.1.50
ip dhcp pool Local
import all
network 192.168.0.0 255.255.254.0
default-router 192.168.1.1
multilink bundle-name authenticated
license udi pid CISCO1941/K9 sn FTX1523022E
redundancy
interface GigabitEthernet0/0
ip address dhcp
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
interface GigabitEthernet0/1
ip address 192.168.1.1 255.255.255.0
ip nat inside
ip virtual-reassembly
duplex auto
speed auto
ip forward-protocol nd
no ip http server
no ip http secure-server
ip nat inside source list 101 interface GigabitEthernet0/0 overload
ip route 0.0.0.0 0.0.0.0 GigabitEthernet0/0
access-list 101 permit ip 192.168.1.0 0.0.0.255 any
control-plane
line con 0
line aux 0
line vty 0 4
login
scheduler allocate 20000 1000
end

Trouble connecting Cisco router with cable modem for Internet purposes

So I am requesting help from the Cisco community on this issue as the cable company states there equipment is working fine. At all my facilities I have a guest Internet service setup through a local Internet provide to provide Internet services to the residents and guests. I have the cable modem usually a Motorola SBG6580 or a SMC 8014 (both provided by cable company) connected to my router on a FE or GE interface. I am using static IPs and using the cable modem just as a modem (bridge mode). Over the past several months these connections have just stopped working. I have not made any drastic changes to my router configs; however, the cable company has updated the firmware on these modems. I am wondering if that could affected how the modem and router talk. I was told by the cable company that the modem sees the Cisco router but that the port is inactive. My router shows the port is active and traffic passing. Does anyone have any ideas that could point where the problem lies? I will post a basic config to one that currently does not work. I am using a VRF to route a certain group out, using NAT. Please let me know if I need to post additional info. Any help would be greatly appreciated.
Cisco CISCO2911/K9
Version 15.2(3)T1
service timestamps debug datetime localtime
service timestamps log datetime localtime show-timezone
service password-encryption
hostname 1204RTR01
boot-start-marker
boot system flash0:c2900-universalk9-mz.SPA.152-3.T1.bin
boot system flash0:c2900-universalk9-mz.SPA.151-3.T.bin
boot-end-marker
card type t1 0 0
logging buffered 64000
aaa new-model
aaa session-id common
clock timezone cst -6 0
clock summer-time CDT recurring
no ipv6 cef
no ip source-route
ip vrf 5
rd 5:1
ip multicast-routing
1
ip dhcp pool Guest
vrf 5
network 10.51.XXX.0 255.255.255.0
default-router 10.51.XXX.XXX
dns-server 209.18.47.61 209.18.47.62
ip flow-cache timeout active 1
no ip bootp server
no ip domain lookup
ip cef
multilink bundle-name authenticated
application
global
service alternate default
license udi pid CISCO2911/K9 sn FTX1508AHTM
hw-module pvdm 0/0
redundancy
ip tcp synwait-time 10
interface GigabitEthernet0/0.5
description Guest VLAN
encapsulation dot1Q 5
ip vrf forwarding 5
ip address 10.51.xx.xxx 255.255.255.0
no ip redirects
no ip proxy-arp
ip nat inside
ip virtual-reassembly in
ip tcp adjust-mss 1452
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
interface GigabitEthernet0/2
description Guest Intenet access
ip vrf forwarding 5
ip address 24.242.182.182 255.255.255.252   <--Cable company IP, Modem IP is 24.242.182.181
ip nat outside
ip virtual-reassembly in
load-interval 30
duplex auto
speed auto
ip forward-protocol nd
no ip http server
ip http authentication local
no ip http secure-server
ip http timeout-policy idle 60 life 86400 requests 10000
ip nat inside source list 9 interface GigabitEthernet0/2 vrf 5 overload
ip route vrf 5 0.0.0.0 0.0.0.0 24.242.182.181
access-list 9 permit 10.51.204.0 0.0.0.255

Ok, mysteriously this location just started working yesterday, but I still am dealing with seven others and I really would like to know what is going on. I will give you everything you may need and let me know.
Config:
version 15.2
no service pad
service timestamps debug datetime localtime
service timestamps log datetime localtime show-timezone
service password-encryption
hostname 1112RTR01
boot-start-marker
boot system flash0:c2900-universalk9-mz.SPA.152-3.T1.bin
boot system flash0:c2900-universalk9-mz.SPA.151-1.T.bin
boot-end-marker
aaa new-model
aaa session-id common
clock timezone CDT -6 0
clock summer-time CDT recurring
network-clock-participate wic 0
network-clock-select 1 T1 0/0/0
no ipv6 cef
no ip source-route
ip vrf GuestVRF
rd 5:1
ip multicast-routing
ip dhcp pool Guest
vrf GuestVRF
network 10.51.112.0 255.255.255.0
default-router 10.51.112.1
dns-server 209.18.47.61 209.18.47.62
ip flow-cache timeout active 1
no ip bootp server
no ip domain lookup
ip cef
application
global
service alternate default
interface Embedded-Service-Engine0/0
no ip address
shutdown
interface GigabitEthernet0/0.5
description Guest VLAN
encapsulation dot1Q 5
ip vrf forwarding GuestVRF
ip address 10.51.112.1 255.255.255.0
no ip redirects
no ip proxy-arp
ip nat inside
ip virtual-reassembly in
ip tcp adjust-mss 1452
interface GigabitEthernet0/1
description Guest Internet (Time Warner Connection)
ip vrf forwarding GuestVRF
ip address 97.77.116.234 255.255.255.252
ip nat outside
ip virtual-reassembly in
load-interval 30
duplex auto
speed auto
ip forward-protocol nd
ip nat inside source list 5 interface GigabitEthernet0/1 vrf GuestVRF overload
ip route vrf GuestVRF 0.0.0.0 0.0.0.0 97.77.116.233
access-list 5 permit 10.51.112.0 0.0.0.255
control-plane
end
router#sh ip arp vrf GuestVRF
router#Internet 97.77.116.233           2   f80b.bee7.e09f ARPA   GigabitEthernet0/1
Protocol Address          Age (min) Hardware Addr   Type   Interface
Internet 97.77.116.234           -   8843.e13c.8d99 ARPA   GigabitEthernet0/1
router#ping vrf GuestVRF 97.77.116.233
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 97.77.116.233, timeout is 2 seconds:
Success rate is 0 percent (0/5)
router#sh int g0/1
GigabitEthernet0/1 is up, line protocol is up
Hardware is CN Gigabit Ethernet, address is 8843.e13c.8d99 (bia 8843.e13c.8d99)
Description: Guest Internet (Time Warner Connection)
Internet address is 97.77.116.234/30
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full Duplex, 1Gbps, media type is RJ45
output flow-control is XON, input flow-control is XON
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 00:00:10
Input queue: 76/75/15/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 3000 bits/sec, 7 packets/sec
30 second output rate 0 bits/sec, 0 packets/sec
     81 packets input, 4860 bytes, 0 no buffer
     Received 81 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 12 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     16 packets output, 1193 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out
router#sh int g0/1
GigabitEthernet0/1 is up, line protocol is up
Hardware is CN Gigabit Ethernet, address is 8843.e13c.8d99 (bia 8843.e13c.8d99)
Description: Guest Internet (Time Warner Connection)
Internet address is 97.77.116.234/30
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full Duplex, 1Gbps, media type is RJ45
output flow-control is XON, input flow-control is XON
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters 00:00:42
Input queue: 76/75/67/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
30 second input rate 3000 bits/sec, 7 packets/sec
30 second output rate 1000 bits/sec, 2 packets/sec
     408 packets input, 24480 bytes, 0 no buffer
     Received 408 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 61 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     72 packets output, 5669 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out
I am receiving packets in and out of the interface but I cannot ping the modem through the VRF.
router#sh ip nat translations
Pro Inside global      Inside local       Outside local      Outside global
udp 97.77.116.234:3169 10.51.112.39:3169 209.18.47.62:53    209.18.47.62:53
udp 97.77.116.234:8534 10.51.112.39:8534 209.18.47.61:53    209.18.47.61:53
udp 97.77.116.234:12244 10.51.112.39:12244 209.18.47.61:53   209.18.47.61:53
udp 97.77.116.234:14002 10.51.112.39:14002 209.18.47.61:53   209.18.47.61:53
udp 97.77.116.234:23623 10.51.112.39:23623 209.18.47.62:53   209.18.47.62:53
udp 97.77.116.234:24489 10.51.112.39:24489 209.18.47.61:53   209.18.47.61:53
udp 97.77.116.234:24550 10.51.112.39:24550 209.18.47.61:53   209.18.47.61:53
udp 97.77.116.234:27458 10.51.112.39:27458 209.18.47.62:53   209.18.47.62:53
udp 97.77.116.234:28603 10.51.112.39:28603 209.18.47.62:53   209.18.47.62:53
udp 97.77.116.234:37404 10.51.112.39:37404 209.18.47.62:53   209.18.47.62:53
udp 97.77.116.234:53942 10.51.112.39:53942 209.18.47.61:53   209.18.47.61:53
udp 97.77.116.234:58125 10.51.112.39:58125 209.18.47.62:53   209.18.47.62:53
udp 97.77.116.234:64797 10.51.112.39:64797 209.18.47.61:53   209.18.47.61:53
udp 97.77.116.234:56925 10.51.112.52:56925 209.18.47.61:53   209.18.47.61:53
udp 97.77.116.234:56925 10.51.112.52:56925 209.18.47.62:53   209.18.47.62:53
udp 97.77.116.234:62342 10.51.112.52:62342 209.18.47.62:53   209.18.47.62:53
tcp 97.77.116.234:36559 10.51.112.69:36559 199.167.177.46:1227 199.167.177.46:1227
tcp 97.77.116.234:48895 10.51.112.69:48895 54.195.253.126:5223 54.195.253.126:5223
tcp 97.77.116.234:58385 10.51.112.69:58385 54.195.243.137:5223 54.195.243.137:5223
Pro Inside global      Inside local       Outside local      Outside global
tcp 97.77.116.234:58658 10.51.112.71:58658 31.13.66.165:443 31.13.66.165:443
udp 97.77.116.234:3066 10.51.112.72:3066 209.18.47.62:53    209.18.47.62:53
udp 97.77.116.234:3884 10.51.112.72:3884 209.18.47.61:53    209.18.47.61:53
udp 97.77.116.234:6656 10.51.112.72:6656 209.18.47.61:53    209.18.47.61:53
udp 97.77.116.234:11194 10.51.112.72:11194 209.18.47.61:53   209.18.47.61:53
udp 97.77.116.234:11774 10.51.112.72:11774 209.18.47.62:53   209.18.47.62:53
Let me know if you need anything else. I need to figure this out and I just don't get it because the other site wasn't working a few days ago and all of a sudden it is working again but others are still not.

WRT54G V6 strange problem with cable modem

I have a cable modem with Comcast Digital Voice. I have a WRT54G V6 with the latest firmware. After much discussion and troubleshooting on the phone with Linksys rep, I returned and swapped the router. No change to the problem. I've seen similar issues, but not exactly the same one, on this board. Here's the situation:
I have an XP computer connected via Ethernet directly to the router. I have 1 Mac Laptop (OSX) and 1 Thinkpad (XP) laptop that use the home network interimly via wireless. I use WEP, but no special filtering.
I can get everything set up fine, and all will work for some time. Like I've seen some other's say, about 30 - 90 minutes worth of online time, and the router seems to hang - BOTH wirless and wired. During this time, my wireless signal does not drop out. But I sudddenly cannot get to the internet.
What makes it especially odd is that my digital voice (VoIP) does NOT drop out, meaning my internet connection is still up (and the cable modem shows no signs of trouble - and a reset of the cable modem makes no difference by itself.
The only thing that fixes the situation is a hard restart of the router (meaning unplugging it and then plugging it back in).
The Linksys help folks had me do a complet reset of everything and then even had me change some parameters, including a change of channel, manual MTU, etc. Nada.... Then I changed the router to a new one... Same-o same-o.
I suppose the Cable Modem could have a bad ethernet port -but I read SO many things similar to this problem on the board that I doubt it.
And to think I dumped my NetGear!!! (It also had problems - that were associated with unstable wireless).
Any help is appreciated. It's a real pain.

One other thing... When it drops out, I cannot even get to the router admin page via my web browser and wired connection to the router. So perhaps this has something to do with DHCP server dieing?

How do I set up Airport Extreme with cable modem and router?

Hi--
I'm having a house built and all of the wiring for TV, phone, and internet will be centralized in a closet. The cable modem can be placed there as well. In one room in the basement I want to use my Airport Extreme for my iMac and USB external hard drives. In another location of the basement, I'd like to set up a Time Capsule for another desktop and USB printer. If the cat5e comes out of the wall at each location, I "think" I need a router at the closet location. I also thought I might need an Airport Express upstairs on first or second floor to boost signal for my laptop. The house isn't that big so maybe that's overkill. So beyond the router question, do I want to set up a roaming network and have the Airport Express connected via ethernet or just wireless if the thought is that I need this? Finally, if I should connect cable modem to router to Airport Extreme, Time Capsule, etc., in what order and ports does the equipment get connected? Many thanks!!

Welcome to the discussions, Forum Girl!
It would be best to position the cable modem and main router in the central location like the closet if possible. The other devices would connect via ethernet to the wall jacks in each room.
If you could setup a "roaming" wireless network as you mention, this will give you better wireless performance and coverage. This is the way commercial establishments like airports, businesses, etc. are configured for wireless.
The order of connection would go something like this: ethernet connection > cable modem >main router>devices. Devices could be computers, routers, a backup device, etc. Since the Extreme has only 3 LAN ports for ethernet connections, you will also need to plan to install an "ethernet switch" near the location of the main router to provide enough ethernet jacks. If you are planning to use DirectTV, etc or your audio/video devices require ethernet connections (most new products do for updates and extra features), be sure to plan for that as well.
Make sure that CAT5e or CAT6 wiring is run so you will be able to take advantage of faster gigabit speeds.
Finally, it would be a good idea to work with an IT specialist to go over your plans to make sure all the bases are covered. This would be money well spent.

Time Capsule connectivity issues with cable modem

I have Comcast internet service (coming through a Linksys CM100 modem, no router) plugged directly to a 2TB dual-band TimeCapsule. In the past this has been working, and the TimeCapsule has been providing internet access to three Macs, as well as backing them up. I also have an AirPort Extreme base station (not the dual-band one but not the 2003-era UFO-shaped one either) that has been connected to the TimeCapsule over house ethernet to provide wireless through the rest of the house. Last night my connection kept dropping out. I could connect to one wifi network and it would not work, then I would connect to the other and it would work for a while before stopping. I have disconnected everything and then replugged only the cable modem and my TimeCapsule. When ethernet is plugged directly into my iMac from the modem, I get an internet connection without issue. When I plug it into the TimeCapsule, it reports an internet connectivity error. It says it gets no IP address, and no DHCP setting that I provide it with alleviates this message.
I'd be gratful for any suggestions on how to fix this issue. I don't really want to wipe the TimeCapsule completely, as it contains our backups to last July.

When ethernet is plugged directly into my iMac from the modem, I get an internet connection without issue. When I plug it into the TimeCapsule, it reports an internet connectivity error.
Because cable modems associate and "remember" the device with which they have established a connection, they need a complete reset whenever you change the device that is immediately connected to them.
Push the reset button, If present, on your modem
Power off the modem
Pull the battery if it is easily accessible
Power off everything else on the network, order if not important
Wait at least 15 minutes
Make sure that the Ethernet cable from the modem is connected to the WAN port (circle of dots icon) on the Time Capsule
Power up the modem and let it run 2-3 minutes by itself
Power up the Time Capsule the same way
Power up each of your other devices about a minute apart
Check for proper operation the network.

Airport Extreme Base Station not cooperating with Cable Modem

The non-specific issues are by far the most frustrating and I can't make any sense of this. To be fair, this might not be a AEBS issue as much as a ISP issue, but any suggestions are much appreciated.
History: My setup has worked great for about 6 months, but recently I've been having intermittent problems (described below) that have been getting progressively worse and more frequent. The issues have not changed in relationship to firmware/software updates for the AEBS and airport utility.
Setup: Cable Modem (Time Warner Kansas City is ISP) --> AEBS (A1143 on the latest firmware) --> periodic wireless connection to imac, macbook pro and 2 iphones. A Time Machine (hard drive) is also connected to the AEBS via USB.
Symptoms:
-Intermittent disconnects and slowdowns over wireless
-Wired connections are completely unaffected.
-Loss of wireless internet connectivity is consistent through all devices.
-Time machine is unavailable when the internet is not accessible.
-During disconnects sometimes the router doesn't even appear, sometimes I can connect but can't reach my time machine or the internet, sometimes it won't accept my password and sometimes it times-out.
Sounds like the wireless transmitter is going out on the AEBS or something, right? Well, Apple was kind enough to replace my AEBS under warranty to try to solve this problem, but it hasn't gone away.
Could this be an issue with my ISP not distributing IP address properly or something? I'm not really very savvy with the way all that works.
Thanks for your help with this mess.

Its gotta be the surrounding interference issue. I found a macworld article that refers to testing the different channels in the 2.4gHz range and finding some completely unusable (as you mention). If I didn't have a couple iPhones that can't run 5gHz, I'd certainly bump up to that because apparently that's where the performance is!
Here's a link to the article, although it's mostly a review, though information within is pertinent to our issue.
http://www.macworld.com/article/59923/2007/09/airportextreme.html

Plug-in order for connecting to internet via AP Extreme with cable modem?

Help!
My internet's been a bit slow the past few days. I was scared to do anything because when I first got my Airport Extreme, it took me several days to figure out how to get connected, and it was highly frustrating. I remember that there was always a blinking orange light and some issue the utility couldn't identify, and the ultimate fix had something to do with unplugging and replugging my cable modem, but I'm not sure at what step in the process I did this.
Now, I tried unplugging and replugging the modem and though my base station was showing up in the list of networks under the Airport icon at the top of the screen, it kept saying there was an error when I tried to connect. Airport Utility wasn't even finding any base stations at all, so I tried several orders of unplug/replug to no avail. Each time, the green light was coming on but my computer couldn't find the base station and wouldn't connect to the network. I then tried the reset button (5 seconds). When I reset, the utility could find the base station, but I'm back to blinking amber and when I try to configure the base station, it says "the wireless network could not be found." Does anyone here know the magic order of the plugs? I'm using an Ethernet cable to connect from modem to base station and running Tiger on a Powerbook G4. Any help would really be appreciated!!

Is this a cable modem with a usb port? If so you are correct. It doesn't connect easily. You're better off with a modem that has an ethernet port. Now if you are referring to a Sprint Novatel U720 USB modem I can tell you it works.

Router not communicating with cable modem

I have a befw11s4 ver 3 router that has functioned well for over 5 years and the other day we had a lightning strike that wiped out our cable modem. The modem was replaced but the router seems to have a problem. First, the power led does not lite up but the WLAN Act and WLAN link led's are ok.(green) When I try to setup the router with the CD the I get a message that the router will not communicate with the internet and stops. If you connect the computer directly to a access point the led's (link/act & full/col) and you can ping and talk to it.
So, is there a way to determine if the router was destroyed by the lighgtning strike or if the router just needs to be reloaded? Thanks in advance for your replies.

Press and hold the reset button for 60 seconds...Release the reset button...Unplug the power cable from your router, wait for 30 seconds and re-connect the power cable...Now check if the Power Light is ON on the router or not...? If there is solid power light the, you can reconfigure your router....If there is still no power light then check if you are getting any ip address from the router....
Click Start >> All Programs >> Accessories >> Command Prompt...A black box will appear(Command Prompt)...In the Command Prompt window type ipconfig and press 'Enter'...Look for Ethernet Adapter Local Area Connection IP Address , Subnet Mask and Default Gateway...
IP Address should be 192.168.1.x, Subnet Mask : 255.255.255.0, Default Gateway : 192.168.1.1 (assuming your router is 192.168.1.1)...
If you get the above mentioned IP Address, Subnet and Gateway Address then you should ping the Gateway, type ping 192.168.1.1 and press Enter..If you are getting 4 replies then...you can manually setupyour router...Ifyou are not getting the replies then, you router must have gone bad.
If your Internet Service Providor is Cable follow this link
If your Internet Service Providor is DSL follow this link

Time Capsule not working with cable modem

I have a WebStar modem using Cox cable internet. When I plug the ethernet cable into my Macbook directly out of the modem, I have internet. When I plug the Ethernet cable into my Time Capsule - I have no internet and the lights on the modem do not flash. The modem is not recognizing the TC or the TC is not recognizing the modem. Any solutions??? Please help.....

roniamarie wrote:
The modem is not recognizing the TC or the TC is not recognizing the modem.
It's the former.
Power everything down, including the modem. While it's powered down connect the TC's WAN port to the modem. After a few moments of peaceful contemplation, power up the modem and then the TC.
You should then be able to configure the TC with Airport Utility, if you haven't already done so. If you can't, and you need to reach the outside world again, resist the temptation to connect your computer directly to the cable modem. Connect a computer to the TC's LAN port instead.
Here's the applicable explanation from Apple:
*You've done everything right, but still can't connect to the Internet. Why?*
It's because the modem locked onto your iMac, and it will ignore anything else you plug into it until it's been reset. If you were to plug the iMac back into the modem, it would still connect to the Internet.
Fortunately, resetting a broadband modem is usually very easy -- just unplug its power supply, wait a moment, and plug it back in. After its indicator lights have gone through their startup routine, you should do the same to the AirPort base station.
Odds are that you can connect to the Internet now.

Airport Express not working with cable modem

I have an airport express that has been working perfectly. I changed my internet provider and it suddently won't work -- no dns, no internet--even though other devices (including apple tv) are connecting with no problem. [the cable modem (motorola) runs through a router to apple tv and the airport express.] I have reviewed everything here and nothing is helping (powered down, disconnected everything, etc) I am at a complete loss. Please HELP.

Configuration is simple if you start from a factory default condition. Connect the main Airport to AC power and to the Internet modem (or modem/router). Open Airport Express on your Mac or other computer and accept all of the recommendations. After confirming that it works, insert your desired administrative and WiFi passwords.

Back to my mac doesn't work with Cable modem

I have at home Cable modem and a Airport Extreme, both use NAT to distribute internet, so it seems even if I connect the cable modem direct to my home Mac (without the Airport) that the Back to my mac doesn't work. Can somebody tell me how can I turn around this problem? Doesn anybody has it too?
The Back to my Mac panel displays this message when I have the Airport Extreme distribuiting the Internet: Back to My Mac isn't working properly because you may have more than one device on your network providing Network Address Translation (NAT). Try disabling NAT on one the devices.
And without the Aiport: Back to My Mac isn't working properly because it requieres a router that supports NAT Port Mapping Protocol (NAT-PMP) or Universal Plug and Play (UPnP). Make sure your router supports one of these protocols and that it is enabled.

If I may continue this thread, I have the same double NAT issue and am using a DSL modem/router combo. I added an Airport Extreme to my Qwest supplied Actiontec dsl Modem/Router in hopes it would solve issues with Back to my Mac, among other things. The dsl modem supports UPnP to some degree, but BtmM doesn't seem to like it.
Currently the setup uses the DSL modem/router first in line, functioning as modem, NAT, router, but no DHCP (or wifi). That plugs into the WAN port of the Airport BaseSta. The Base Station runs in bridge mode, and distributes the ethernet and wifi connections. I would rather bridge the modem and disable its router functions, and let the Airport handle NAT and routing and wifi and Back-To-My-Mac.
What are the alternatives? Any help appreciated!

Using Airport Extreme Base Station with Cable Modem

Hi everyone,
I have just bought an Airport Extreme Base Station. I connected it to my cable modem (Surfboard 3100) through the WAN port and my iMac G4 is connected to it through the Ethernet port. Installed the Airport Utility, and configured the base station with the normal settings of DHCP for Internet and DHCP for internal network.
After restarting the base station, my Internet connection from the iMac through the base station is very slow and most of the time will time-out. My Internet connection through my PowerBook G4 using wireless through the base station is ok though.
My question is, is there some setting which I should set for the Ethernet portion of the base station to make my wired connections to the Internet work?
Thanks in advance for any help!
regards,
Weiming
iMac G4 Mac OS X (10.4.10)

Hi,
My iMac G4 does not have an Airport card. I did not physically restarted the base station, its part of the sequence when we update the configuration, that the base station will restart on its own.
regards,
Weiming

UK User with Cable Modem Problem

Hi all
I have just signed up with VirginMedia for TV and Broadband. Access to the internet is offered rebranded Ambit U10C018 Data Cable Modem. I have a Mac BookPro 2.33GHz and a Airport Extreme 802.11n base station (firmware v7.2.1) providing my wireless network.
Wired access to the internet (i.e. connecting my MBP to the cable modem via an ethernet cable) is fine.
The problem I have is when I surf the web wirelessly. Requested web pages are taking a long time (15-30 seconds to load); pages which load instantly via a wired connection. I have used the AirPort Utility to try various different settings but they have not made any difference. The VirginMedia engineer who came to my house has suggested that there is an incompatibility between the AEBS and the cable modem.
The Ping and Traceroute output below look normal. NsLookup returns quickly, so I don't think there is a DNS problem.
My question is whether anyone else has had any similar experiences? What advice can you give me here? Should I look at getting another wireless base station?
many thanks
Nigel
<pre>
Ping has started ...
PING google.co.uk (66.249.93.104): 56 data bytes
64 bytes from 66.249.93.104: icmp_seq=0 ttl=242 time=41.412 ms
64 bytes from 66.249.93.104: icmp_seq=1 ttl=242 time=27.236 ms
64 bytes from 66.249.93.104: icmp_seq=2 ttl=242 time=26.675 ms
64 bytes from 66.249.93.104: icmp_seq=3 ttl=242 time=22.958 ms
64 bytes from 66.249.93.104: icmp_seq=4 ttl=242 time=110.269 ms
64 bytes from 66.249.93.104: icmp_seq=5 ttl=242 time=31.007 ms
64 bytes from 66.249.93.104: icmp_seq=6 ttl=242 time=28.013 ms
64 bytes from 66.249.93.104: icmp_seq=7 ttl=242 time=25.478 ms
64 bytes from 66.249.93.104: icmp_seq=8 ttl=242 time=26.804 ms
64 bytes from 66.249.93.104: icmp_seq=9 ttl=242 time=125.384 ms
--- google.co.uk ping statistics ---
10 packets transmitted, 10 packets received, 0% packet loss
round-trip min/avg/max/stddev = 22.958/46.524/125.384/36.118 ms
</pre>
<pre>
Traceroute has started ...
traceroute to www.bbc.net.uk (212.58.253.72), 64 hops max, 40 byte packets
1 10.0.1.1 (10.0.1.1) 1.991 ms 0.570 ms 0.807 ms
2 * 10.7.236.1 (10.7.236.1) 10.315 ms 8.286 ms
3 herm-t2cam1-a-v107.inet.ntl.com (80.3.34.33) 18.271 ms 8.380 ms 29.011 ms
4 hers-t3core-1a-ge-011-0.inet.ntl.com (195.182.176.241) 18.537 ms 10.507 ms 10.328 ms
5 bre-bb-a-so-110-0.inet.ntl.com (213.105.175.37) 10.207 ms 12.809 ms 11.880 ms
6 gfd-bb-b-so-120-0.inet.ntl.com (213.105.172.150) 10.421 ms 26.259 ms 12.814 ms
7 redb-ic-1-as0-0.inet.ntl.com (62.253.185.78) 13.022 ms 13.719 ms 24.336 ms
8 212.58.238.189 (212.58.238.189) 14.638 ms 24.925 ms 18.858 ms
9 212.58.238.133 (212.58.238.133) 17.176 ms 22.429 ms 15.177 ms
10 fe0-0.rt0-frontpost.prodgw.bbc.co.uk (212.58.239.222) 25.854 ms 15.577 ms 14.366 ms
11 * * *
12 * * *
</pre>

I wonder if my problem was solved which seems similar to yours. I have just brought a preused G3 , 400, running Panther. I want to use this as an backup to my DLS G4. It all seems oka and does everything it should do, but it seems unable to make a connection with any ISP. You can hear the modem dial out, but it fails to trigger a response from any ISP and the ISP numbers have been checked and rechecked, and I have checked permissions and done an erase and reinstall
I have a feeling that this computer came from off a LAN and the modem has been in some way inhibited to prevent staff accessing the WWW. Has anybody come across this and is there anything I can do to get internet access.
Any help much appreciated
Vernon
UK

WRT54GX4 trouble with Cable Modem

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