I am currently using a USB modem (aircard) to connect to the internet via Alltel Wireless.
Anywhere from 30 seconds to 30 minutes, the modem behaves as if I have physically disconnected/reconnected. What’s odd, though, is that Device Manager shows no issues or conflicts during this time. It’s as if the modem completely freezes, then resets itself.
I was having this problem previously on XP Pro x64 edition, but I just performed a clean install of Vista 64-bit last night and am having the same issues. I’ve gone through uninstalling/reinstalling drivers and software to no avail, USB Root Hubs are not turning off devices to save power, mobo and chipset are up to date, and I even purchased a new USB card thinking it had gone bad.
These are brand new cards (I have been through three, thinking the cards had gone bad). Every card does the same thing. My ISP refuses to be of any assistance at this point, and I’d like to be able to use my main PC instead of my laptop on a daily basis.
Any suggestions would be greatly appreciated – the other info is as follows:
AMD Athlon 64 X2 4800+
2GB RAM
Asus A8N-E mobo
Vista Ultimate 64-bit
Event Viewer information just prior to “disconnect”:
Log Name: System
Source: PlugPlayManager
Date: 3/4/2009 7:12:10 AM
Event ID: 12
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: ******
Description:
The device ‘PANTECH UM175AL WWAN Driver’ (USB\VID_106c&PID_3715&MI_03\7&6494a93&0&8515) disappeared from the system without first being prepared for removal.
Log Name: System
Source: RemoteAccess
Date: 3/4/2009 7:10:41 AM
Event ID: 20268
Task Category: None
Level: Information
Keywords: Classic
User: N/A
Computer: ******
Description:
CoID={6A3305EF-E798-4800-B8FD-3B7F82EEECB5}: The connection to Alltel Wireless Internet made by user **********@alltel.net using device COM3 was disconnected.
Log Name: System
Source: Tcpip
Date: 3/4/2009 7:10:32 AM
Event ID: 4202
Task Category: None
Level: Information
Keywords: Classic
User: N/A
Computer: ******
Description:
The system detected that network adapter Alltel Wireless Internet was disconnected from the network and its network configuration has been released. If the network adapter was not disconnected, this may indicate that it has malfunctioned. Try updating the driver for the network adapter.
Log Name: System
Source: Microsoft-Windows-User-PnP
Date: 3/4/2009 7:09:06 AM
Event ID: 20003
Task Category: None
Level: Information
Keywords:
User: SYSTEM
Computer: ******
Description:
Driver Management has concluded the process to add Service tunnel for Device Instance ID ROOT\*6TO4MP\0000 with the following status: 0.
Log Name: System
Source: Microsoft-Windows-User-PnP
Date: 3/4/2009 7:09:04 AM
Event ID: 20003
Task Category: None
Level: Information
Keywords:
User: SYSTEM
Computer: ******
Description:
Driver Management has concluded the process to add Service tunnel for Device Instance ID ROOT\*ISATAP\0002 with the following status: 0.
Log Name: System
Source: Tcpip
Date: 3/4/2009 7:09:03 AM
Event ID: 4201
Task Category: None
Level: Information
Keywords: Classic
User: N/A
Computer: ******
Description:
The system detected that network adapter Alltel Wireless Internet was connected to the network, and has initiated normal operation.
