How can I get OWA to work again?

If you have successfully used OWA but are not able to access your mailbox now, select your computer and browser below. Try Option 1 first. If you are still not successful, try Option 2 and then Option 3 if you still cannot connect.
HINT: Make certain you're using your Exchange password and that the Caps Lock key is not active.

---

Windows Internet Explorer

Windows Firefox

Macintosh Safari

Macintosh Firefox

---

Windows Internet Explorer

• Option 1
1. If you have a bookmark for OWA (exchange.umich.edu), delete it.
2. Attempt to link to exchange.umich.edu. If you are successful, you can create a new bookmark.

• Option 2
1. Under the Tools menu, click Internet Options.
2. In the Internet Options window, under the Browsing history section, click Delete.
3. In the Delete Browsing History window, click Delete all.
4. Attempt to link to exchange.umich.edu.

• Option 3
1. From the Windows Start button, select the appropriate steps based on your operating system:
   • Windows XP
   1. Click Run.
   

   2. In the Run window's Open field, enter cmd and click OK.
   

   • Windows Vista
   1. Right-click on Command Prompt and select Run as administrator.
   2. If you receive a "Windows needs your permission" window, click Continue.

2. When a black window opens, enter the following text: ipconfig /flushdns
3. When you see the "Successfully flushed" message, you can close the window and test your connection to exchange.umich.edu. If you are still unable to connect, please call 764-HELP [764-4357] Option 2.

---

Windows Firefox

• Option 1
1. If you have a bookmark for OWA (exchange.umich.edu), delete it.
2. Attempt to link to exchange.umich.edu. If you are successful, you can create a new bookmark.

• Option 2
1. Under the Tools menu, click Options.
2. In the Options window:
   
   1. click the Privacy tab.
   2. under the Private Data section, click Clear Now.

3. Attempt to link to exchange.umich.edu.

• Option 3
1. From the Windows Start button, select the appropriate steps based on your operating system:
   • Windows XP
   1. Click Run.
   

   2. In the Run window's Open field, enter cmd and click OK.
   

   • Windows Vista
   1. Right-click on Command Prompt and select Run as administrator.
   

   2. If you receive a "Windows needs your permission" window, click Continue.

2. When a black window opens, enter the following text: ipconfig /flushdns
3. When you see the "Successfully flushed" message, you can close the window and test your connection to exchange.umich.edu. If you are still unable to connect, please call 764-HELP [764-4357] Option 2.

---

Macintosh Safari

• Option 1
1. If you have a bookmark for OWA (exchange.umich.edu), delete it.
2. Attempt to link to exchange.umich.edu. If you are successful, you can create a new bookmark.

• Option 2
1. Under the Safari menu, click Reset Safari.
2. In the Reset Safari window, click Reset.
   

3. Attempt to link to exchange.umich.edu.

• Option 3
1. In your Applications folder, open the Utilities folder, then double-click Terminal.
2. In the Terminal window, enter login and press Return.
3. At the Login: prompt, enter your Macintosh User name and press Return.
4. At the Password: prompt, enter your Macintosh User password and press Return.
5. Based on your operating system, enter the appropriate bolded text:

Mac OS X 10.4 (Tiger)	lookupd -flushcache
Mac OS X 10.5 (Leopard)	dscacheutil -flushcache

6. Press Return
7. In the next line, enter logout and press Return.
8. You can now close Terminal and test your connection to exchange.umich.edu. If you are still unable to connect, please call 764-HELP [764-4357] Option 2.

---

Macintosh Firefox

• Option 1
1. If you have a bookmark for OWA (exchange.umich.edu), delete it.
2. Attempt to link to exchange.umich.edu. If you are successful, you can create a new bookmark.

• Option 2
1. Under the Firefox menu, click Preferences.
2. In the Main window:
   
   1. click the Privacy tab.
   2. In the Privacy window, click Clear Now.

3. Attempt to link to exchange.umich.edu.

• Option 3
1. In your Applications folder, open the Utilities folder, then double-click Terminal.
2. In the Terminal window, enter login and press Return.
3. At the Login: prompt, enter your Macintosh User name and press Return.
4. At the Password: prompt, enter your Macintosh User password and press Return.
5. Based on your operating system, enter the appropriate bolded text:

Mac OS X 10.5 (Leopard)	dscacheutil -flushcache
Mac OS X 10.4 (Tiger)	lookupd -flushcache

6. Press Return
7. In the next line, enter exit and press Return.
8. You can now close Terminal and test your connection to exchange.umich.edu. If you are still unable to connect, please call 764-HELP [764-4357] Option 2.

Information and Technology Services