Page cannot be displayed

Hi All,

One of our client has problem accessing jde web client. They can login in the webclient but sometimes they encounter "Page Cannot be Display" in the IE browser. Even during in midst of transaction they encounter this error. To login again in JDE, I told them to do the "ipconfig /renew and ipconfig/release". But this not good because even they encounter this problem they will do again the renewal of ip address. How can we resolve this issue?

Thanks,

Sancho