Archive for June, 2009
So you’re having trouble getting to the Internet? Can’t ping the Internet gateway? Can’t ping your own IP address? Have network adapters that refuse to enable or disable? Could be a corrupt IP stack. You can take a look at MSKB 299357, or you can follow these steps:
- Make sure you’re logged in with a local administrator account.
- Open a command prompt.
- Run the following command :
netsh int ip reset logfile.txt
where logfile.txt is the name of a file where the command can write its output.
- When the command completes, run it again with a different filename for the output file.
- When that run completes, run it one more time, again with a different filename for the log file.
- Restart the computer in Safe Mode with Networking.
This will reset the TCP/IP settings back to sane defaults, which means all adapters in the computer will be set for DHCP. If you’re doing this on an SBS server, restarting in Safe Mode with Networking is absolutely crucial in order to avoid the dreaded 30 minute reboot. When the computer comes back up, set the network settings as needed, then reboot normally.
You may still have other issues, but these steps will get you a nice, clean, DHCP-enabled set of network adapters in the system.
Exchange 2003 SP2 and Exchange 2007 have options to require a security code on a device that will connect to the Exchange server using ActiveSync. This setting is optional in Exchange 2003 but is enabled by default in Exchange 2007. Without getting into the reasons why you might want to reconfigure Exchange 2007 so that ActiveSync devices do not require a device security code, if you do change the Mobile Device settings after an iPhone has already connected with ActiveSync and is requiring the password, you have to jump through a couple of hoops to actually get the iPhone to pick up the new security settings.
OK, they’re really small hoops, but it’s worth pointing out nonetheless because I had to Google quite a bit to uncover this tidbit. To remove the security code requirement from the iPhone, do the following:
- Remove the Exchange account from the iPhone configuration.
- Turn off the security code in the iPhone settings.
- Add the Exchange account back to the iPhone configuration.
That’s it. If you’re prompted to create a security code when you re-add the Exchange account, then the Exchange policy hasn’t been modified correctly, and you need to dig into that. But if the requirement for the device security code has been correctly changed, you will not be prompted to enter a security code in step 3 above, and no reset of the iPhone is needed.