Hi All,Suddenly my network settings got screwed-up and couldn't connect via Tata Photon +. Was getting error:"A connection to the remote computer could not be established. You might need to change the network settings for this connection..."I called up tata photon services and they said my machine's TCP IP settings are screwed up and only solution is to reinstall the OS. So much for their technical service quality - simply pathetic.I did google search and couldn't find any help with tata photon error 720. Next did search on Huawei 720 and got the link:Mine is a lenovo T400 machine with XP. And the directions solved my problem in no time, without reinstalling OS Thought to post this taking the risk of duplicating things (in case it is already addressed elsewhere in this forum) so that it might be of help to someone facing the same problemShas