open ports are "filtered" on wlan0

[KingDuckZ]

Hello, I've been messing around with systemd (mainly adding ifplugd) and since then my wifi connection seems to have broken.
I tried a port scan from my laptop, which is connected to the raspberry through a cross cable, and I see the following:
Cable connection:
$this->bbcode_second_pass_code('', '[root@dev00 ~]# nmap -sS 192.168.1.10

Starting Nmap 6.25 ( http://nmap.org ) at 2013-01-10 11:50 CET
Nmap scan report for 192.168.1.10
Host is up (0.0072s latency).
Not shown: 997 closed ports
PORT STATE SERVICE
22/tcp open ssh
111/tcp open rpcbind
2049/tcp open nfs
MAC Address: B8:27:EB:AB:75:DE (Raspberry Pi Foundation)

Nmap done: 1 IP address (1 host up) scanned in 0.29 seconds')
WiFi connection:
$this->bbcode_second_pass_code('', '[root@dev00 ~]# nmap -sS alarmpi

Starting Nmap 6.25 ( http://nmap.org ) at 2013-01-10 11:51 CET
Nmap scan report for alarmpi (192.168.0.14)
Host is up (0.024s latency).
rDNS record for 192.168.0.14: alarmpi.myhouse.it
Not shown: 997 closed ports
PORT STATE SERVICE
22/tcp filtered ssh
111/tcp filtered rpcbind
2049/tcp filtered nfs
MAC Address: 80:1F:02:65:50:D9 (Edimax Technology Co.)

Nmap done: 1 IP address (1 host up) scanned in 3.33 seconds')

Can somebody help with this please? I can't do anything from the raspberry, and ifconfig reports wlan0 to be dropping everything:
$this->bbcode_second_pass_code('', 'wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.14 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 fe80::821f:2ff:fe65:50d9 prefixlen 64 scopeid 0x20<link>
ether 80:1f:02:65:50:d9 txqueuelen 1000 (Ethernet)
RX packets 2344 bytes 253147 (247.2 KiB)
RX errors 0 dropped 2477 overruns 0 frame 0
TX packets 2070 bytes 170291 (166.2 KiB)
TX errors 0 dropped 1 overruns 0 carrier 0 collisions 0')
My wifi connection is started automatically at startup by net-auto-wireless, and my enabled services are:
cronie.service
dhcpcd@eth0.service
httpd.service
ifplugd@eth0.service
net-auto-wireless.service
ntpd.service
postfix.service
remote-fs.target
rpc-idmapd.service
rpc-mountd.service
rpcbind.service
sshd.service
sshdgenkeys.service
syslog-ng.service