This is a repost I wrote some time ago. It might be helpful.
Long note. Hopefully it's a helpful start.
Instructions are available for wlan setup. You can get the manual here:
http://www.ghl-kl.de/Produkte/Aquar...LAN_new_eng.pdf
The instructions appear confusing, but they do work if you follow them to the letter. It sounds like you're trying to set up wlan on the unit itself -- an impossible task! Well, maybe not impossible, but horrible. Much easier to plug the Profilux into a laptop by serial or usb and program from there.
You'll also need to designate a permanent ("static") dns string for your profilux through the router's control interface (again, by means of a laptop or pc that has access to your router). For example, designate 192.168.1.105 (for Linksys users only; DLink strings don't look like this). You must do this step, unfortunately; and it makes life much easier. Just don't start assigning other devices that don't need it. Just tackle the Profilux.
So, start by accessing your router. Not knowing how much you know about wireless router configuration, I'm going to be safe: you access your router config by opening a web browser on your computer and keying in your router access address. For Linksys routers, this is usually "192.168.1.1"; then you enter your admin user name and password. If you haven't established a username and password (you should!), you just type in "admin" as the user and leave the password blank -- just as anyone else in wireless range would do to hijack your router. Once there, grab a pen and jot down everything, or save and print screen shots of your progress. Set a permanent DNS address for your profilux. You can then return to your Profilux and go through the connect procedures to see if you can connect. If you've written everything down, you'll get the CHANNEL number and device address settings to match perfectly. Don't touch any other number settings unless invited to do so. If every number is perfect, you'll link.
If you connect (it may be slow; e.g 15 seconds, depending on various things), then you can proceed to adjust wireless security settings, which you've written down with your trusted pen before deactivating security on your router. If a screen appears instantly that says you can't connect, it's a simple discrepancy between your router and the Profilux. Go through all the steps again.
Once you're connecting properly to the Profilux from another wirelesscomputer on the router's network (or wired computer, I guess; doesn't matter) , you can then input the security settings on the profilux and save it. Then, and only then (e.g. with an established connection) should you proceed to reengage your router's wireless security settings -- which need to correspond exactly on the Profilux. Once security is reestablished, your (wireless) computer will likely no longer have access to your network, so you'll have to reconfigure your laptop to recognize and connect properly with the (now secure) wireless network.
If everything worked, you can attempt to connect wirelessly to your Profilux. If you didn't connect, I'd recommend you start over again, painfully re-reading the instructions to find the error in your procedure. It's often something horrible simple, like a channel setting (e.g. 5 instead of 11, etc.).
Read the guide above as if you were a surgeon! Follow each step surgically, so to speak, and if you get hung up along the way, note where connectivity failed to work. You can PM me and/or post to this particular thread and I'll get back to you asap.
Hope this helps. I've been meaning to write an easy-start blurb for wlan, but haven't had a moment to think. Perhaps guiding you through this process might help me get to it.
Cheers,
Erik
