I have 2 servers in the company. 1 is a brand new SBS 2003 R2, the other is Server 2003 standard SP1.
I have 2 modems - Netcomm Mega I Modem (CD2002) and Netcomm Roadster II (AM5693). When installing them, I get an error pop up window "Windows was unable to install the modem". Then is finished the installation with an error, and detects the modem and tries again in a loop until I cancel the process.
I downloaded the latest drivers off the Netcomm website.
I cannot even install the modems manually on COM1 as Standard 56000 bps. I get the same message.
The event log shows EventID 256, Source: PlugPLayManager, Type: Warning.
Timed out sending notification of device interface change to window of "ModemDeviceChange"
There is no other error in the log.
I also found that I cannot install USB printer drivers on any new PC (Win XP) in the domain. The same symptoms appear. It goes through looking for the driver, displays the compatibility issue, then comes up with the error, and goes through the cycle again. Exiting USB devices work just fine.
The event logs don’t show anything unusual except Event ID 20, Source Print – which is a warning.
I suspect that a registry key may have been introduced or set since the introduction of R2, which is causing this problem in the domain.
The new server SBS R2 server was set up using the swing migration. Everything else appears perfectly fine. One thing, which may or may not be important – I took the old server (after the swing), and removed it from the domain (also removing the domain) using dcpromo – last DC scenario. Then, I renamed the server, rebooted, and set it to workgroup. After this, I rejoined it to the domain as a new member server.
As I said, all things appear to be working well. The only problem is that I cannot add any new hardware. All the old hardware still works fine with pre-existing drivers.