Unable to access Internet using a Mobile Network

Hello friends
I recently updated my SE Xperia mini pro 17i (2011 model) to ICS, initially there were some issues and I had to re-update it to finally get authentic interface of ICS. Even after the successful update I am unable to use the mobile network to access Internet, the only way is to use a Wifi instead. Can somebody please help me out with this issue?
Karan

The first thing I would advise doing is contacting your current network provider and have them send you through the relevant internet settings.
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If you haven't already, verify that you can connect to the internet through some other means such as Wi-Fi or Ethernet with your laptop to rule out any network setting issues. If you are able to connect successfully to the internet, use that opportunity
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My nightmare started when i upgrade my ipad to ios 7.0.2 i am not able access internet using cellular data, how can i revert to my old ios .

my nightmare started when i upgraded my ipad to ios 7.0.2 i am not able access internet using cellular data, how can i revert to my old ios.wifi is ok , but cellular data is a big prob.can anybody help me ?

Can't downgrade on iOS ...
Press and hold the Sleep/Wake button and the Home button together for at least ten seconds, until the Apple logo appears.
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Hi, I'm currently on a MacBook Pro running OS X Mountain Lion and Safari v6.0.4.
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Please read this whole message before doing anything.
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The purpose of this step is to determine whether the problem is localized to your user account.
Enable guest logins* and log in as Guest. Don't use the Safari-only “Guest User” login created by “Find My Mac.”
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Test while logged in as Guest. Same problem?
After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.
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Step 2
The purpose of this step is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login, or by a peripheral device.
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Hi, I have a Lenovo "G"-Series notebook, Type 4446-38U which has suddenly stopped allowing me to access my internet connections. The PC is only about a month old. It is running XP Professional.
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I spent several hours on the phone with Lenovo Tech Support to no avail, and their instruction that I uninstall Norton Internet Security made no difference either. When they instructed me to open a Command Prompt and ping 192.168.1.1, the results showed that there were 4 packets sent and 4 received. When I was instructed to ping the IP Address for the wireless adapter, the results showed 4 packets send and 4 received. When I was instructed to ping www.google.com, the results showed that the ping request could not find the host www.google.com. Lenovo Tech Support stated that there was nothing further they could do, and that I needed to use a utility to set everything back to factory specs (i.e., have a utility programme erase everything on the hard drive and reinstall XP ... and even then I was told that there was no guarantee that would fix things, meaning that the PC would then have to be sent into their repair depot). Before I do this, I was hoping that someone here might know as to what's going on with my connection problems and how it could be fixed, without having to erase everything.
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Unable to access Internet from LAN - Cisco ASA 9.1(2)

Hi,
I have Cisco 5515 IOS 9.1(2). I had configured out-to-in rule with 'ssh' and able to access the Internet server, but the same server is unable to access the Internet. Not sure what i am missing here. Please look in to the configuration below and suggest.
10.4.20.2 is the host i am trying to access the Internet and it fails, but able to 'ssh' to this IP from the internet.
ASA Version 9.1(2)
interface GigabitEthernet0/0
description OUTSIDE
nameif outside
security-level 0
ip address 1.1.1.1 255.255.255.248
interface GigabitEthernet0/1
description BACKUP
nameif backup
security-level 0
ip address 2.2.2.2 255.255.255.248
interface GigabitEthernet0/4
description INSIDE
nameif inside
security-level 100
ip address 10.4.20.1 255.255.255.0
boot system disk0:/asa912-smp-k8.bin
ftp mode passive
clock timezone PT -8
clock summer-time PT recurring
dns domain-lookup outside
object network 2.2.2.4_10.4.20.2
host 10.4.20.2
access-list out2in extended permit icmp any any inactive
access-list in2out extended permit ip 10.4.20.0 255.255.255.0 any
access-list out2in_bkp extended permit icmp any any inactive
access-list out2in_bkp extended permit tcp any object 2.2.2.4_10.4.20.2 eq ssh
pager lines 24
logging enable
logging timestamp
logging standby
logging monitor debugging
logging trap debugging
logging history debugging
logging asdm debugging
mtu outside 1500
mtu backup 1500
mtu inside 1500
mtu management 1500
no failover
icmp unreachable rate-limit 1 burst-size 1
asdm image disk0:/asdm-713.bin
asdm history enable
arp timeout 14400
no arp permit-nonconnected
object network 2.2.2.4_10.4.20.2
nat (inside,backup) static 2.2.2.4 net-to-net dns
access-group out2in in interface outside
access-group out2in_bkp in interface backup
access-group in2out in interface inside
route outside 0.0.0.0 0.0.0.0 1.1.1.2 10 track 100
route backup 0.0.0.0 0.0.0.0 2.2.2.3 20 track 101
timeout xlate 3:00:00
timeout pat-xlate 0:00:30
timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02
timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00
timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00
timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute
timeout tcp-proxy-reassembly 0:01:00
timeout floating-conn 0:00:00
dynamic-access-policy-record DfltAccessPolicy
user-identity default-domain LOCAL
aaa authentication ssh console LOCAL
aaa authentication http console LOCAL
http server enable
http 192.168.1.0 255.255.255.0 management
http 0.0.0.0 0.0.0.0 outside
http 0.0.0.0 0.0.0.0 backup
no snmp-server location
no snmp-server contact
snmp-server enable traps snmp authentication linkup linkdown coldstart warmstart
sla monitor 100
type echo protocol ipIcmpEcho 8.8.8.8 interface outside
sla monitor schedule 100 life forever start-time now
sla monitor 101
type echo protocol ipIcmpEcho 8.8.4.4 interface backup
sla monitor schedule 101 life forever start-time now
service resetoutside
crypto ipsec security-association pmtu-aging infinite
crypto ca trustpool policy
track 100 rtr 100 reachability
track 101 rtr 101 reachability
telnet timeout 5
ssh 0.0.0.0 0.0.0.0 outside
ssh 0.0.0.0 0.0.0.0 backup
ssh timeout 60
ssh version 2
ssh key-exchange group dh-group1-sha1
console timeout 0
dhcpd address 192.168.1.2-192.168.1.254 management
dhcpd enable management
threat-detection basic-threat
threat-detection statistics access-list
no threat-detection statistics tcp-intercept
ntp server 123.108.225.6 source outside
ssl encryption rc4-sha1 aes128-sha1 aes256-sha1 3des-sha1
username xyz password ***** encrypted privilege 15
class-map inspection_default
match default-inspection-traffic
policy-map type inspect dns preset_dns_map
parameters
message-length maximum client auto
message-length maximum 512
policy-map global_policy
class inspection_default
inspect dns preset_dns_map
inspect ftp
inspect h323 h225
inspect h323 ras
inspect rsh
inspect rtsp
inspect esmtp
inspect sqlnet
inspect skinny
inspect sunrpc
inspect xdmcp
inspect sip
inspect netbios
inspect tftp
inspect ip-options
service-policy global_policy global
prompt hostname context
no call-home reporting anonymous
Cryptochecksum:9b63e3cfc9f98800d2bb3efa34c75906
: end

Hi Anand
Could you please do a packet tracer on the Asa?
Packet-tracer input inside icmp 10.20.4.2 8 0 4.2.2.2 detailed
Are you able to ping 4.2.2.2 from the server ?
Please use the following command
"fixup protocol icmp"
And then check whether you are able to ping the Internet.
Regards
Aditya

Ipad is connected to the wifi but unable to access internet or receive mail.

Recently set up new broadband connection. Wifi set up and iphone, computer all able to connect to wifi and internet. Ipad recognises old networks and able to connect for wifi access, but for this new connection I am able to connect with the ipad but it does not seem to be able to receive or transmit any information, hence I am unable to access any internet, update any apps or check my email. Can anyone help? I've tried rebooting the system, forgetting the network and shutting the ipad off, all to no avail!

I've rebooted the router, I've made the ipad forget previous settings, rebooted the ipad, called the useless talktalk technical help. I have used this ipad previously with a previous talktalk connection. I'm not sure why this time I can't connect - perhaps its the security setting on the new router that isn't competible with the ipad? I'm using a D-link DSL-3680 router if that helps

Unable to access internet via Airport Express

Hi. I'm have trouble connecting to the internet using my Airport Express.
When I plug in my DSL modem to the unit, I get the solid green light. My Macbook is able to connect to the airport, and to other computers on the same Airport.
However, none of my computers are able to reach any internet sites. They were even unable to directly ping a remote IP address. However, if I plug my DSL modem directly into my Macbook, bypassing the Airport, it correctly connects to the internet, which leads me to believe the problem is with my Airport.
A couple of oddities which I don't know if they are normal. First, in my MacBook's network prefs, the DNS box is blank. However, I'm connected via DHCP, so I didn't know if that'd matter. In the airport configuration app, under internet, it's also using DHCP, but the box is empty, with the same address as the router (192.168.1.1) greyed out next to it. The IP address is 192.168.1.5. This number is rather different than when I connect to my DSL router directly on my MacBook.
I'm running what I believe to be the newest firmware (6.3).
Any ideas anyone?
Thanks,
Nathaniel

Hi,
I solved the problem using the airport express firmware 6.1.1. and erasing all favourites networks in network pref panel to create new ones. You may also check the keychains utility (applications -> utilities). If there is several times the same pass, just keep the latest and erase the others.
Hope my english is understandable...

Can anybody help me to access Internet with my existing network

Dear All Recently I purchased new WRT 54G wireless router. Also I have tied up with new ISP to give wireless internet access to some of the my Higher authority employees only. My office network setup is as shown below Local Ip range : 172.18.0.0 to 172.18.2.254 subnet mask : 255.255.0.0 Default gateway : 172.18.0.50 Wireless Router configured as : 1) configured all ISP settings 2) configured LAN site setting( But I had to setup lan as 192.160.1.X i.e the required by ISP ). 3) connected ISP lan port of WRT54G to cable coming from ISP Modem 4) Connected Local port( any one of 4 ports) to my existing switch(existing LAN----172.18.x.x network) Now suppose I configure user laptop to access new ISP internet through wireless.I have done following setting Wireless LAN setting : Ip address : 192.168.1.2( I can give any IP of network 192.168.1.x) subnet mask:255.255.255.0 Default gateway :192.168.1.1 DNS : Automatic I can access the new ISP internet without any problem with WRT54g router. But the problem is while accessing the new ISP internet( Using 192.168.1.x/255.255.255.0/192.168.1.1 network),Also I want to access my existing network( 172.18.0.0/255.255.0.0/172.18.0.50). Since I am very weak in routing the network, can anybody help me out to do routing setting in linksys WRT54g router so as to access my New ISP internet using existing network( 172.18.0.0/255.255.0.0/172.18.0.50). Please help me anybody

O.K. Still the crucial question remains whether you want the separation of the ISPs enforced or not, i.e. do you actively want to prevent someone to switch to the other ISP simply by reconfiguring some settings on the computer or not?
If you don't want to enforce the policy and it is enough to just use different IP settings on different computers then this would probably be the easiest solution.
If you can, install a DHCP server (e.g. on a Linux box) inside your network which does the DHCP address assignments. That way you can dynamically assign the proper addresses to the computers.
You can then assign the WRT an LAN IP address inside the 172.18 subnet. The DHCP server assigns anyone addresses inside your 172.18 subnet. However, you configure different gateway and dns server addresses depending on the computer. You configure the MAC addresses of those 'preferred' laptops the gateway address of the WRT and the public DNS servers of the new ISP. All other computers you assign the old gateway address of the old router and the DNS server addresses of the first ISP.
If you don't want to install your own DHCP server you can assign either pool static IP addresses, i.e. assign all preferred laptops static IP address including the gateway address of WRT and use DHCP only for the normal computers or vice versa.
What won't work reliably is to run two DHCP servers on both routers and connect the LAN of both together. You'll end up with computers picking up the wrong IP address from the wrong DHCP server.
Again, this separation only happens due to the different configuration of the computers. If anyone can freely reconfigure the computer he has it is easily possible to change the gateway address and thus swap the ISP. But as long as people comply with the rules it works.
If you want to enforce the separation you will have to install another router between the two gateway router. This third router passes traffic from the WRT subnet for the 172.18 subnet and accepts the return traffic. In the opposite direction the router does not forward traffic. You should even be able to use a standard NAT gateway router and hook up the internet port to the 172.18 subnet and the LAN port to the WRT. You then configure a static route on the WRT to forward packets for 172.18 subnet to the third router. If the third router does not NAT then you have to configure another route on the first router to forward traffic for WRT subnet (192.168.1.*) to the third router as well.

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They automatically sign into the home network as usual but browsers and apps always time out. What's even stranger is that on my iPhone I do get pop-up notifications (from Twitter and Facebook) when the phone is on standby but once I open the notifications the request times out :-(
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Turn off "Smart Set Up" on the homehub. It can cause problems on mobile devices.
http://bt.custhelp.com/app/answers/detail/a_id/44328/~/switching-smart-setup-on-and-off-on-the-bt-ho...

Cant access google apps via mobile network..!!

I have a problem with accessing apps when using mobile data
Error received from Chrome reads ERR_TUNNEL_CONNECTION_FAILED
I have an Xperia Z Tablet upgraded tp 4.3 but this fault also occured in 4.2
I do have a data plan and it works in other devices
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After updating my macbook air to moutain lion i am having some trouble accessing internet.
Evertytime i re-start my mac or airport utility i am able to access internet properly. After sometime when i access some particular sites, internet access goes down and i need to restart time capsule to access internet again.
Even though in airport utility internet is marked as disconnected, time capsule's indicator is still glowing green colour.
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Is the time capsule the only router in the network?
Try setting the lease time in the TC to very short value.. 20min or even less, 10min. It will not add signficant network traffic but might keep the Air updated to the TC.
I would also use SMB compatible name for the TC as well as wireless.. ie short, no spaces.. pure alphanumeric.
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Unable to access Internet using a Mobile Network

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