I am using photon+ wireless broadband. I am getting the following error messeage "error 633 the modem or other connecting device is already in use or is not configured properly" ans Internet stops functioning. Unless I restart, this problem doesn't go. Is there any solution. I am using Acer notebook with Wndows XpI am getting the same problem. Tata photon people says it's WinXP fault. I have formatted my PC thrice installed 3 diff Winxp versions, not working at all.Error : 1722 RPC server not available.Why it's giving this kind of error?? what's the solution?Winxp with SP2,SP3 tried on Pentum Dual core and celeron notebook.