Android phone wi-fi not connecting with perticular network only Please refer me to right portal if this is not a right one.

I am having android phone HTC one +. Now problem is that when i am in office and trying to connect with Wi-Fi then it not connect but when i try to connect with any other Wi-Fi network then it easily connect.

I also had visit the service center and Wi-Fi connected easily in their network.

What i can do to solve this issue.
I had the same problem but with another device(HTC touch diamond2). You need to edit network settings. Write by yourself IP-adress, subnet Mask, Router of current Wi-Fi.
I think to find out this information for you will not be difficult.