NWBC for HTML - F4 / drop down does not work, Export to excel not working

Hello Experts,

I am working on NWBC for HTML client with SAP CRM for incident management. Everything looks good except, on Customer field (in Incident create screen), if I press F4 or click on drop down button, a dialog box does not come up for selection/search for customer.

Also, on search incident screen result list, when I try to click on excel button, I get following error:

"DNS could not be resolved"

• NWBC patch level is 42 as required.
• NWBC for HTML is used with version 3.5.2.30

Any help on this?

Shital Kansara