Cannot associate with wireless network.
Signal Quality – (Unacceptable)
- Improper configuration settings:
- Ad hoc selected
- Incorrect entry of WEP key or WPA (2) passphrase
- Incorrect selection of proper security type (WEP, WPA, WPA2)
- Improper encryption cipher (WPA2: TKIP or AES)
Note: WPA uses TKIP/PSK and WPA2 adds AES.
- Network Compatibility mode setting mismatch with network; i.e., 802.11 a/b/g/n
- Improper channel width setting vs; i.e., 20, 40, 20/40MHz
- MAC (media access control) filtering or other security measures
- Router MAC filtering either allows or prevents clients or wireless NICs to associate on the network. This router feature requires the entry of the printer's NIC MAC address to grant access to the router (AP).
- Work virtual private network (VPN)* connection is enabled while configuring or setting up device.
- Virtual Private Network (VPN) The only way around this is VPN tunneling. If this is not an option, disconnect from your VPN to ensure successful configuration and communication with the printer.
- Firewalls* on the router may prevent association with the router.
- DHCP turned OFF* on router. This prevents IP address assignment and prevents the printer from joining the network.
- 5GHz only* setting on the router if you do not have the latest EC6.0 printer firmware.
- Radio turned OFF*on router.
- Unsupported Proprietary Speeds and Protocol setting; Lexmark devices strictly adhere to IEEE 802.11 g/b/n 2.4GHz standard.
* See router or access point (AP) documentation.
|Access point is not using WPA.|
- WPA security type was selected and configured on the printer NIC but the AP does not have any WPA information elements in its beacons. Make sure that the router is not configured for some other type of security.
- Or the AP with the target SSID is advertising WPA security with WPA information elements in its beacons, but the printer's wireless NIC (adapter) is not configured for WPA.
|Signal strength too weak |
- The network name or SSID is in the wireless setup utility (WSU/WSAMac) site survey results, but its signal-to-noise (SNR) ratio is < 10 dB, which the Lexmark wireless adapter deems unacceptable.
Note: The setting page does not list SNR on our network settings sheet, but it may list signal strength, which accounts for overall signal quality. SNR = RF signal power relative to power of noise in the environment; e.g., 43db SNR is better than 37db SNR.
- Suggested actions include:
- Antenna adjustment; booster (gain) antennas if router supports it.
- Range extenders (repeaters)
- Reposition AP or printer.
- Change AP channel.
- Remove obstructions. See the router documentation or contact the router manufacturer's technical support for further suggestions.
|Can't find wireless network.|
Possible causes and suggestions include:
- Invisibility Status (enabled) or Broadcast SSID (disabled) may be configured on your router. This prevents a successful site survey by the wireless configuration utility.
- The target network name or SSID no longer exists. Confirm your AP's network name or SSID. See the router documentation or configuration web or software utility.
- The target network name or AP is completely out of range.
|Signal strength too strong|
- The target SSID in the wireless configuration utility site survey is too strong or greater than –10dB.
- This explanation requires a greater understanding of radio frequency behavior, but it should be known that having the printer too close to the router can cause receiver trouble.