Gateway address problem

[antonio giulio <antongiulio05@gmail.com>]

Hi,

I have setted my wireless connection and now it seems working. However
there is a strange problem: with firefox I can browse every site
normally, but when I try to download emails (sylpheed) or update
repository (apt-get and synaptics), they can't start to download
(remain blocked)... I suppose it's a gateway problem.

I active my wireless-connection via dhcp:

# dhclient wlan0

and

# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
192.168.1.0     *               255.255.255.0   U     0      0        0 wlan0
default         mygateway1.ar7  0.0.0.0         UG    0      0        0 wlan0

# cat /etc/resolv.conf
search
nameserver 192.168.1.1

If I comment:

# cat /etc/resolv.conf
search
#nameserver 192.168.1.1

Firefox continues to work, but sylpheed etc. soon show "connection failed".

Have you any idea?

Thanks,
Giulio