Canon PIXMA MG5550 Series Online Manual page 11

Make sure that the channel set to the access point is valid to communicate
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with the computer, confirmed in Check 8.
If not, change the channel set to the access point.
Make sure that the firewall of the security software is disabled.
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If the firewall function of your security software is turned on, a message may appear warning that Canon
software is attempting to access the network. If the warning message appears, set the security software to
always allow access.
If using any programs that switch the network environment, check their settings. Some programs will enable a
firewall by default.
When using a router, connect the printer and computer to the LAN side
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(same network segment).
If the problem is not resolved, perform setup with the Setup CD-ROM or perform it according to the
instructions on our website.
• For placement:
Make sure that there is no barrier or obstacle between the access point and the machine.
Cannot Print or Scan from a Computer Connected to the Network
Make sure that the network settings of the computer are correct.
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For the procedures to set up the computer, refer to the instruction manual of your computer or contact its
manufacturer.
If the MP Drivers are not installed, install the MP Drivers.
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Install the MP Drivers with the Setup CD-ROM or install them from our website.
When using wireless LAN, make sure that access control is not set to the
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access point.
For the procedures to connect an access point and set it up, refer to the instruction manual of your access
point or contact its manufacturer.
Note
• To check the MAC address or the IP address of the computer, see
Address of the Computer.
Checking the IP Address or the MAC
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