Panasonic CF-T2 Series Reference Manual page 156

Problems with Wireless LAN
The communications speed is low
Communications with access point are cut off
Unable to connect to a network
Communication speed may decrease if, aside from the access point to which this
computer is connected, there is another access point nearby using the same channel or a
similar channel. Change the channel on the connection access point, and check to see if
the speed recovers. Confirm method for changing channels using the access point
manual.
The communications speed may be reduced for the following reasons. Shorten the
distance between the computer and the access point.
• IEEE 802.11g or IEEE 802.11b may be affected by a microwave oven or similar,
reducing the communications speed while the microwave oven is in operation.
• IEEE 802.11a is more susceptible to interference than IEEE 802.11g or IEEE 802.11b,
and therefore the communications speed may be reduced if there is a wall between the
computer and the access point or if the computer is further away.
When using a wireless LAN in an environment that combines both IEEE802.11g and
IEEE802.11b, communication speed when using IEEE802.11g may decrease.
Using the CPU Idle Setting to set to [Performance] may improve this problem.
See "A device connected to a PC Card does not operate correctly" (
Shorten the distance between the computer and the access point, and try the detection
again.
If there are multiple access points aside from the access point to which this computer is
connected, confirm that different channels have been set for each access point.
Using the CPU Idle Setting to set to [Performance] may improve this problem.
See "A device connected to a PC Card does not operate correctly" (
Following the operating instructions of the access point, set the IP address of the access
point again correctly.
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page 150).