[TinyCedar]

I have a Linksys WRT3200ACM-UK with DDWRT firmware. build is DD WRT v 3.0-r50841 std (11/9/22).

The Internet connection works fine on open wifi (both with broadcasting the SSID and with a hidden network), but the moment I set up security for the wifi, my devices stop connecting. I tried all combinations of wpa / wpa2 etc and nothing works.

My devices are all on latest software (android 13, Windows 11,etc)and are pretty new, so I don't think it's a compatibility issue. (also, they were working on the linksys sofrware). They are all compatible with both 5GHz and 2.4 GHz, but for now I have disabled the 2.4 to focus on getting the 5 working first. (Additionally, since they connect without security, I don't think that is the issue).

I have tried it with just WPA2, and with WPA2 + CCMP-128 (AES) enabled (as suggested in some of the forum posts previously). Neither works. I tried matching my settings to the one here: https://support.flashrouters.com/dd-wrt/wifi-setup/linksys-wrt3200acm-dd-wrt-wifi-settings/ but that doesn't work either.

For now, I've left it on as an open network with a Mac address whitelist, but I know that's not really secure.

Can anyone help me out with whatever is wrong here? Thanks!

[Alozaros]

Hi there
WPA2 + CCMP-128 (AES) is the one you need, do not click/tick box anywhere else, do not use TKIP & AES mixed
than add password...click save and reboot...


also on wifi setting do not use auto channel ...

best help will come if you expose your WiFi settings and wifi security settings...so, other GURU's can have a look..(post a pic)

also Linksys WRT3200ACM is Marvell based router and those questions about it will be better answered there https://forum.dd-wrt.com/phpBB2/viewforum.php?f=58

Good Luck !

p.s. have a look here if this helps ... https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=333158

[egc]

Moved to the more appropriate Marvell forum.

See the forum guidelines with helpful pointers about how to research your router, where and what firmware to download, where and how to post and many other helpful tips:
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087

[TinyCedar]

[egc]

Post a screenshot of the wireless security

Check you client that they allow WPA2

[TinyCedar]

Here's the screenshot:

[the-joker]

Can you show a screenshot of the Wireless basic page? I wanna see the order of the interfaces i.e 2.4 vs 5Ghz and the number of interfaces you have (because different platforms shows the radios in different orders and Im unfamiliar with yours.)

Essentially check the security mode is set for the correct interface wlanX on both pages (matching MAC address and all .
Make sure you click APPLY to restart the interfaces after any changes.

[TinyCedar]

OK, I seem to have identified the problem: WPA2 + AES doesn't work if Mac filtering is on, but once I disabled that it seems to be working now.

It may be worth looking into if anyone wants to have both a password and a mac filtering option - but I'm happy to just have the WPA2 security.

Thanks all!

[the-joker]

MAC filtering you can whitelist (give access to only those clients to your wireless network ) or blacklist (deny the listed clients access).

For sanity you should only maintain whitelists and understand the difference.

I have whitelists and similar security on at same time, works just fine and should work for you and everyone also.

[Alozaros]

you can also do a mac filtering via DNSmasq advanced rules...

Use dnsmasq and additional options:

Code:

dhcp-host=11:22:33:44:55:66,set:known
dhcp-ignore=tag:!known

First directive will send extra options tagged as "known" to machine with Ethernet MAC address 11:22:33:44:55:66.
The other directive will ignore any clients which are not specified in dhcp-host lines. Equivalent to ISC "deny unknown-clients".
This relies on the special "known" tag which is set when a host is matched.
On linux (!) means NOT.