I couldn't find "Accept as Solution", hence decided to leave a message for the rest of the people who would stop by for a solution to this problem.
This is by far the best way to get your WRT110 working if it stops working. Awesome guide from solo11. Just downgrade your firmware to the one which is specified and you are all set. Your internet works just fine. There is a slight change in one of the steps that might be applicable to someone like me. Below in red are the changes that i made to make it work for me.
In Step 16 of Basic Setup
Pic: http://www.abload.de/img/wrt110__net_set8aetjwxj.jpg
Internet Connection Type: Leave it as /or select Automatic Configuraton - DHCP instead of PPPoE
(In My case i left it as "Automatic Configuraton - DHCP")
Username: Leave Blank
Password: Leave Blank
I've internet throught Comcast and they don't have a username and password for high speed internet and if you select PPPoE and leave the username and password blank you won't be able to save the settings. Hence i just left the internet connection type to automatic configuration - DHCP and the username and password blank and then it will let you save the changes and then move on to next steps.
After finishing all of the steps i had to restart all the 3 i.e, my modem, router and my computer for the internet to work fine. Hope this one step helps someone as it wasn't mentioned in the guide and so i added it here.
All the best to people who are trying to get their WRT110 to work. Hope linksys does something 'bout this in their next firmware update.
