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

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version 15.0
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service timestamps debug datetime localtime
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ip virtual-reassembly in
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version 15.2
no service pad
service timestamps debug datetime localtime
service timestamps log datetime localtime show-timezone
service password-encryption
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boot-start-marker
boot system flash0:c2900-universalk9-mz.SPA.152-3.T1.bin
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aaa new-model
aaa session-id common
clock timezone CDT -6 0
clock summer-time CDT recurring
network-clock-participate wic 0
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no ip source-route
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no ip domain lookup
ip cef
application
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service alternate default
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interface GigabitEthernet0/0.5
description Guest VLAN
encapsulation dot1Q 5
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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
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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.

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.

UK User with Cable Modem Problem

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