Intermittent Connectivity, Slow Connection
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Make sure you have a strong signal, move to an area with a stronger wireless signal.
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Radio Frequency (RF) interference can be a major cause for poor wireless performance. Devices such as cordless telephones and microwave ovens are sources of RF interference. Other unauthorized wireless routers operating on the same frequency range can also cause RF interference. If possible, log and identify the devices are in use around the area when the connectivity issues occur.
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The access point (AP) is a shared medium and acts as a wireless hub. Therefore, a large number of users on an individual AP degrades performance. Move to a less busy area.
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Obtain and install the most recent version of the wireless network adapter driver.
Repeated Authentication
- Make sure you have a strong signal, move to an area with a stronger wireless signal
- Obtain and install the most recent version of the wireless network adapter driver.
- Disable any power saving features on the wireless card. If you have an Intel Pro/Wireless adapter, please see the Intel’s support website on how to disable this feature. http://support.intel.com/support/wireless/wlan/sb/cs-006205.htm
Authentication Failure after Getting Disconnected
- Disable your wireless card for at least 1 ½ mins, then re-enable it back.
Re-authentication after Sleep or Hibernation Mode
- The AP has an inactivity timeout. When an adapter goes in to sleep mode or hibernation, the AP de-authenticates the client. The user idle timeout is set to 1 ½ mins. Re-authentication is necessary after this idle timeout expires.
For additional troubleshooting information, please contact the IST Help & Solutions Centre and report the following:
- Description of the problem
- Date, time and location when attempting to connect to the wireless network
- Laptop’s wireless MAC address
- OS Platform
- UMnetID
ACN - Campus Network Support Group