RP6 ROBOT SYSTEM - APPENDIX
C – Solving Configuration Problems
WLAN networks offer many different configuration options. Therefore it might happen
that some settings create problems with the configuration of the WLAN module.
The following list contains a series of proposals to solve problems with the WLAN con-
nection of the RP6v2-M256-WIFI module – not everything will be applicable to your
specific problem. If a problem occurs, please work completely through the list, check
if everything is correctly set and watch carefully how the WLAN module behaves dur-
ing the execution of the various instructions. If the problem persists, please contact
the customer support and provide all relevant infos!
1. Do you use the RobotLoader version 2.3c / 20120717 (or later)?
This is important for the correct configuration of the module.
2. Do you use static or dynamic IPs (DHCP)? If you use DHCP, please try to change
to static IPs (caution: either switch off or change the configuration of other
computers in the network. Alternatively connect ONLY ONE test computer
linked directly per cable to the router).
3. Are the router, PC and WLAN module all in the same IP subnet? E.g. all com-
puters in subnet 192.168.10.x with subnet mask 255.255.255.0
4. Does the WLAN and network connection work with other devices? If the WLAN
connection doesn't work with a notebook or similar devices, it will most likely
also not work properly with the WLAN module.
5. All other network settings are as shown in the instruction manual? Especially the
following items should be checked:
◦
Safety: WPA2 PSK correctly configured in the router (avoid WPA1/WPA2
mixed mode, some routers don't transmit the safety settings properly).
◦
Is the pass-phrase really identical in the router and the WLAN module?
Problems may arise with special character $ and spaces as these are control
characters of the command interpreter in the WLAN module. Normally
spaces can be replaced by $ and the RobotLoader does this automatically in
the latest versions. If $ and spaces occur in the pass-phrase at the same
time, you have to use another replacement character. This can be con-
figured. However the most simple way is not to use $ and spaces in the
pass-phrase... all other special chars should work.
◦
Please operate the WLAN network in the 2.4GHz band, 5GHz is not suppor-
ted!
◦
Data exchange between WLAN devices must be allowed.
◦
Switch off Network repeater / WDS functions.
◦
Deactivate MAC filter.
◦
Switch OFF DHCP.
◦
Check all other functions and eventually also the advanced options.
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