Good to hear it's working.
The APN is the Access Point Name. Access to an APN is provisioned on your account held within the mobile network. The APN itself is kind of like a data gateway that gives you a connection out on to the internet. I'm paraphrasing here for for the sake of this explanation.
The settings in the device have to correspond to what's provisioned on yoru account. The settings dictate what the device will TRY and connect to, and the APN provisioned on your account in the mobile network dictates what you CAN connect to.
So when a device tries to connect it looks at it's settings, and requests that the mobile network let it connect to the APN specified in them. If the APN specified in the settings isn't enabled on your account, or the APN is misspelt, or your reading a Vodafone UK forum and using UK APNs but are actually a subscriber from a different network, then the request to conenct will be refused.
When using a Mobile WiFi device connection refusal is usually signified by the signal bars on the display of the device being slightly greyer or" Zig Zaggy" compared to the other text on the device dispay. When using Vodafone Mobile Broadband connection refusals fo this nature can manifest themselves as RAS errors 619, 635 and 770. If you're experiencing any of the symptoms described above the first thing to do would be to check/ammend yoru settings.
The Vodafone UK APN settings are as follows:
internet (if you are a contract/pay monthly customer)
smart (if you're a pay as you go customer on a £5 for 250MB lasting up to 30days plan)
pp.internet (if you're a pay as you go customer on a £15 for 1GB, lasting up to 90 days plan)
ppbundle.internet (if you're a pay as you go customer on a £15 for 2GB lasting up to 30 days plan)
I'm afraid I'm not aware of the APN settings isf you're a subscriber from any other network.
The only way to confirm which APN settings you shoudl be using is to call customer services. They should be able to look up your user account on the HLR (where the provisioning is held). So if you're a Vodafone UK subscriber and have tried the settings above, or are a subscriber from any other network then a call to custoemr services woudl clarify the APN you shoudl be using. Whilst there are resources that give information about what APNs different networks use they might not be up to date or take into account the reselling of mobile services such as Lebara or Tesco mobile which may use different APNs.
In addition, if you're roaming (in a different country from the mobile network operatoryou subscribe to) you don't need to change any settings, but you do need to have roaming (or potentially data roaming) enabled. When using Vodafone UK I think this can be managed via My Account, but again, apart from thsi the only definitive clarification requires a call to custoemr services.
I hope this helps.
