Wireless Frequently Asked Questions
- What is a wireless LAN?
- What is IEEE 802.11b, 802.11g, and 802.11a?
- What data rates are available with a WLAN network connection?
- Will the Wired Network provide better speed?
- How fast is a wireless connection to the campus network?
- Will WLANs receive interference from other wireless devices or other WLANs?
- What is authentication?
- What is a client workstation?
- What is an access point?
- What is a MAC address?
- Will I need an account to connect?
- Why am I being taken back to the wireless registration page after authenticating my laptop for wireless?
- Why am I getting "you are already registered" when trying to register as a CCRI student today after registering as a Guest the day before?
- Whom do I contact if I need help?
- Why am I unable to connect to the wireless network with my portable phone, PDA or other hand held device?
What is a wireless LAN?
A WLAN is a type of Local Area Network (LAN) that
uses high frequency radio waves rather than wires to communicate and transmit data. It is a flexible data communication
system implemented as an extension to or as an alternative for, a wired LAN.
What is IEEE 802.11b, 802.11g, and 802.11a?
IEEE 802.11b, 802.11g, and 802.11a are industry
standard specifications issued by the Institute of Electrical and Electronic Engineers (IEEE). These specifications define
the proper operation of Wireless Local
Area Networks (WLANs).
What data rates are available with a WLAN network
connection?
802.11b WLANs operate at speeds up to 11 Mbps.
802.11a and 802.11g WLANs operate at speeds up to
54Mbps.
Will the Wired Network provide better speed?
Yes, whenever you can you should use the wired
network to do your work.
How fast is a wireless connection to the campus network?
With the 802.11g wireless standard you can have a connection
of 54 Mb/sec at best (i.e. if you're right next to the access point and you are the only user).
However, you rarely achieve the maximum possible speed. This is because of multiple users and signal strength.
All users within range of an access point share that bandwidth, so you'll only get the top speed if you are the only person
within range of that access point. In addition, as you move away from the access point and the signal gets
weaker, the system will automatically slow down to give you more reliable data transfer (sort of like
speaking slower so people will understand you better).
Will WLANs receive interference from other wireless
devices or other WLANs?
The unlicensed nature of radio-based wireless LANs
means that other products (ex. 2.4 GHz cordless
phones, microwave ovens, garage door openers, Bluetooth™ devices) that
transmit energy in the same
frequency spectrum can potentially interfere with a WLAN system. Older
microwave ovens are a concern, but
most WLAN manufacturers design their products to account for microwave
interference. RF interference can
also occur if two WLANs are located in close proximity to each other.
This situation is usually dealt with by
placing each WLAN on a different RF channel within allowed frequency
range.
What is authentication?
Authentication is the process used to verify that a
client's device is allowed to use the wireless network.
What is a client workstation?
A computer connected to a network.
What is an access point?
An Access Point connects wired and wireless networks
together and enables the sending and receiving of
data between wireless clients and the wired network. Using multiple
access points increases total system
capacity and range. Users can "roam" between access points without
losing their connection similar to the
way a cellular phone can roam between cellular phone towers.
What is a MAC address?
The Media Access Control (MAC) address of the
Wireless Ethernet Adapter is a unique serial number
assigned to the device by the manufacturer. Every wired or wireless
network device has a unique MAC
address.
Will I need an account to connect?
Yes, faculty, staff, and students can connect to the
wireless network by using their Pipeline Username and Password.
Why am I being taken back to the wireless registration page after authenticating my laptop for wireless?
If you are a new student and have just activated your Pipeline account, it will take anywhere from 1 hour to 24 hours for your account to be validated.
Why am I getting "you are already registered" when trying to register as a CCRI student today after registering as a Guest the day before?
If you are trying to register as student, staff, or faculty and you have already registered as a Guest, you will not be able to reregister using your Pipeline account login information. Please call the Helpdesk at 825-1112 for assistance.
Whom do I contact if I need help?
For assistance with the wireless network please contact the CCRI Helpdesk
at (401) 825-1112 or send email to
helpdesk@ccri.edu.
Why am I unable to connect to the wireless network with my portable phone, PDA or other hand held device?
Currently, our wireless security system does not support hand held
devices.



