Pleased to hear you cracked it and up and running again and yes I would be pleased if you could send me what you consider could be the solution.
1) type 192.168.0.1 into your web browser
2) login with the default username (admin) and the default password (changeme). Change me is one word. If the login details don't work use what you have changed them to.
3) click advanced settings
4) click backup/restore
5) click backup
6) turn off your SH by the mains and let it cool down
7) take out the white (co-ax) wire
8) turn on your SH with the white (co-ax) wire still out and find the reset button on your SH and press it for 20 seconds
9) turn off the SH by the mains for 60 seconds and then put the white (co-ax) cable back in
10) turn on the SH
11) look at the back of the router and find your SSID should be something like virginmedia...
12) remember the name and password and on your laptop look for the new network name and input the password when trying to connect
Do at your own risk and let me know if you have any problems. Also restart your laptop and let me know if it connects quicker.
Note: A common problem with the SH I find is it doesn't reset to the factory settings when you use the reset button. I tried steps 6-10 several times. You know that the SH has reset when the network name has changed to virginmedia...
If you never ever changed the network name then I suggest you do that first via 192.168.0.1 settings so it makes it easier when you come to steps 6-10.