Guys
Thank you all for all the suggestions and help! Problem solved.
Last night, I finally got connection.
I went back to basic following your advice Softus! I somehow got connected to an unprotected network in the area, then managed to connect to my own router after disabling my router's WPA key - which was a first as I have tried this strategy in the past (The MAC filtering was not the problem).
I finally figured out the WPA keys on router / laptop were not identical -
- Router's one was supposed to be a 63 character computer generated key which I used to set up the latop, but it only had 60 characters (the first 60 of the 63). The weird thing is that I changed the password on both router / laptop once before and still had the "acquiring network address" problem - but may be I did not use the right number of characters??. This time, using identical network keys - minimum 8 characters - I got connection. The other weird thing is that when I got the 60 characters into the laptop wireless set up, I still had the problem
.
Anyhow, I have also learnt other interesting things which I'd like to share:
1. Problem solved, but when I checked ipconfig/all on the work laptop, the Autoconfiguration still says "disabled" as before despite wireless connection! This is unlike the other home laptop which has this heading as "enabled" when connected.
2. After experimenting with the WPA key set-up, I have concluded that when the keys router / laptop are identical EXCEPT for at least one character in capital, the connection happens but wireless does not work with status stuck on acquiring network address ie the problem I had. And as you would expect when the keys are different (cf case sensitivity), there is no connection - interesting indeed
Hope my query has been an interesting journey for you guys...
Thanks for all the help once again!!