but what do I enter for username and password?
Hope this helps:
Vodafone (Huawei) 556a ADSL and 3g Router - ADSL Disabled
Huawei E1820
Huawei E220
Hauwei E353
All the above work in any combination with my 8TA, VODA and CellC SIM cards.
The norm is to leave UN and PW blank but my router also does not like that.
UName: guest
PWord: guest
Tel: *99#
APN: internet
Authentication: auto
DNS: auto (or I use Google's 8.8.8.8 and 8.8.4.4)
If there is an option for PS vs. CS: CS (packet vs. circuit switched)
Network Selection: auto or 3G preferred (I suggest you NOT specify a particular cell network, leave that to the SIM)
Lastly (from me anyhow) make sure that you are logged on as admin when setting up the above, but when connecting logon as user. Not sure that this is not a Vodafone/Huawei specific prerequisite, or it might be because I use Vodafone Ireland and /or NZ firmware.
Hope you come right.
Save and Reboot your router often during the setup.