Pop up coming while accessing General Information page in SAP MSS

Hi Experts

Whenever I am logging into the portal for the first time and try to access the General Information page available in MSS,I get a pop-up which asks to enter the

user credentials.

My portal is connected to a different Dev Client- 260 but the pop-up asks credentials for Dev Client -200..

I have am using a copy of the standard General Information page.The General Info page contains following iViews:

1. Employee Search

2. General Data

3. Personal Data

4. Photo

5. Related Activities

Customisation is done only for Employee Search OADP configuration and homepage framework modified for Related activities.

Rest everythin is same as standard.

Can you please help in resolving the issue.