@Jaiket
https://github.com/retropie/retropie-setup/wiki/Wifi

Everything is in here:
https://github.com/RetroPie/RetroPie-Setup/wiki

You agreed to read:
https://retropie.org.uk/forum/topic/3/read-this-first

@jamesyboyjim That's what I did with my a Linksys E1200 I picked up used for a couple dollars.

http://www.dd-wrt.com/wiki/index.php/Client_Bridged

My Xbox One tends to download updates in the 30-50 Mbit range and sometimes closer to 80 Mbit on a good day. Can't remember what speeds I get with the Pi3 as it basically hits the limitations of usb on the Pi, so I do often end up with kida sporadic file transfers because I'm trying to push data faster than the Pi can write it to the SD card.

@rachuism at first sorry for delayed answer..... If you hash your password then special chars are hexed and your problems may be solved with your WIFI PW.

You can read this thread and follow instructions.
Here the PW is automatically hashed.

You see in the example the passphrease "Secret Key" was hashed to "5bee4223648102a29c09b2b52bbd2fc920c4d90ced9292781477d1bf219b753a"

You can also use this side to generate hashed values..... Be careful! You give your SSID and your PW to a xenos. I tested with the values provided in the thread linked above and the output from wireshark resulted also "5bee4223648102a29c09b2b52bbd2fc920c4d90ced9292781477d1bf219b753a" .... so this works so far!

Knowledge is power!

you need an internet connection to install additional packages.

@NintendoFan64 buy a usb wifi adapter

@babelfish possible perhaps. Sometimes I have to attempt to connect it a few times, then I'll reboot and it will work again, also good to check against other computers to make sure it's just the pi with issues rather than the ISP.

Also would be worth checking to see if your power supply is sufficient

nevermind, magically working now..

@slappa-wappa

Not a problem.

@BuZz thanks! Worked great!

@Whitesnake

Sometimes there's just no substitute for sneakernet.

Even if it makes a zombie thread alive now :)
Hash your password! Then you can use any character
Use the guide I wrote in the posting

@Wizardling Also a gold choice to change password. Annother solution is to use the import feature .... But use the hashed PW value instead.

Every hash consits of a HEX value. So it does not matter if you used special Characters.

@hellska said in Dynamic IP address 'not stable':

The power supply is 2Amp, is it weak for the WiFi to function properly?

@hellska It probably depends on what else you have attached to you RPi, but the specs for RPi3 say 2.5A is recommended.

Your issue reminds me the behavior of my RPi1 with an external Wifi dongle. I never confirmed it was caused by insufficient power, but the fact was I had a poor 1.5A power supply back then. Using scp (which is consuming bit of CPU btw) was causing my Wifi to disconnect many times.

@neobium Please use the @+name-sign or click on reply so the user you might want to talk is mentioned. If the WIFI IP is the one you've setted in the config and you can't connect to the Pie via WIFI then your security key (=WLAN Password, WPA passphrase.... ) might be wrong. Please check this first.

To varify use CLI and use ping command
ping your router first
ping 192.168.1.1
or via router hostname
ping myrouter.ip
ctrl+c stops ping command!

or you can try wget command to download some files
wget http://www.retropie.org.uk/
you will get index.html from retropie

Or are you behind a company proxy and want to play some games while in work? ;)
Or is your subnet mask the right one? Is your router setted to only pass trusted devices?

Are you able to optain a connection via DHCP? if yes then use the method @hansolo77 and myself explained. Change the hostname with raspi-config and you can use any IP you want .

Instead oft using standard Charakters you can try to hash the key. So the key will be transformed to a HEX string that contains only Charakters from 0 to 9 and A to F

Im still on vacation ;D

Seems to be solved by myself... Can someone please verify?

https://retropie.org.uk/forum/topic/4691/solved-feature-request-wifi-key-import-via-boot-wifikeyfile-txt

It seems to be quite simple "they" say....if you know how to compile on Linux (which I barely even know what that is ;)

If my memory serves I got some of it to work following this tutorial. And this was 2 months ago but I had some problems with it... I think it was something like I got WiFi to work, but then when I got to the Bluetooth part of the directions I wouldn't get that to work in addition to the WiFi (or the WiFi bricked the bluetooth or vice versus....I just gave up - it's NOT worth it to me to spend like 10+ hours on something everybody is telling me is already baked into the software (and/or how it's "so easy" to compile the drivers yourself...). Still have the dongle gathering dust though...

Regardless, all this is kinda pointless for the Zero's now that the W (wireless and Bluetooth) model came out - and cheaper to just buy that instead of this combo dongle.

The PowerBlock works with the Pi Zero! One way for getting the needed packages and files on the SD card could be to use a "bigger" Raspberry with Wifi or Ethernet to prepare the SD card.