If you use Public Share, set "Readonly" to "disabled".

Then if you don't use win explorer or konqueror you may have to set a user,password for example using an fstab entry:

//192.168.0.1/Public /mnt/net cifs username=guest,password=guest

Windows Explorer, Konqueror etc. automatically submit a standard user which will then be mapped by samba to a guest user. In this case you don't have to do anything. I don't know if macs do this to.

Ah okay, now I can see it, the problem is that the partition is mounted with fmask=0022,dmask=0022, therefore only root has write permissions, but samba will access as either guest user or the user you specified.

DD-WRT should mount fat partitions with umask=0000, that's the problem. Until this has been changed you could do the following:

Go to Services->NAS->FileSharing

Disable Public Share, check Use Custom Configuration, then add in Custom Configuration:

[global]
server string = 3500L
workgroup = Home
interfaces = br*
bind interfaces only = Yes
map to guest = Bad User
smb passwd file = /var/samba/smbpasswd
private dir = /var/samba
passdb backend = smbpasswd
log file = /var/smbd.log
max log size = 1000
printing = none
load printers = No
usershare allow guests = Yes

[Share]
comment = My Share
path = /jffs/
read only = No
guest ok = No
valid users = root

In User1 field add the user "root" without quotes, supply a password, now connect to your share, with user root+pass. Now samba will access as user root which has write permissions.

Hi
I've just installed the latest build on a rt-n16.
All seems ok, but I also have no write access from Windows 7.
I have Samba public enabled, read only disabled. I formatted my usb drive ext3 assuming this would give better performance(?)

My telnet mount info:

root@DD-WRT:~# mount
rootfs on / type rootfs (rw)
/dev/root on / type squashfs (ro)
none on /dev type devfs (rw)
proc on /proc type proc (rw)
ramfs on /tmp type ramfs (rw)
sysfs on /sys type sysfs (rw)
devpts on /dev/pts type devpts (rw)
devpts on /proc/bus/usb type usbfs (rw)
/dev/mtdblock/4 on /jffs type jffs2 (rw)
/dev/discs/disc0/part1 on /jffs type ext3 (rw,data=ordered)

Hi Kong
Thanks, all good now. Getting about ~5.3 MB/sec read & ~6 MB/sec write transfers from the Samba NAS on the RT-N16 with ext3 usb: how's that compare to the WRT3500?

I'm curious to know what USB drive you're using to get 5-6MB/sec transfer rates. I'm getting more like 832KB/sec, at least that's what windows 7 reports.
I'm using an ext3 formatted USB hard drive mounted on /jffs (firmware build 14584). Any suggestions?

Okay, I reset the router, turned off QoS and disabled USB 1.1 options (just leaving USB 2.0).

I was amazed to see turning QoS off/on alone increased my speed from about 800KB/sec up to 4MB/s. I guess QoS has some real issues, especially considering I supposedly had it set to only adjust WAN traffic.

From what I could tell, the QoS change was the only option that yielded a performance gain though. I wasn't previously using ProFTPD but switched it on for testing purposes. FTP was only marginally faster by about 0.3MB/sec. So at best, my transfer rates now are still only 4.3MB/sec. Even so, that's an amazing increase, thanks! Any other suggestions to attempt to tweak a little more speed out of my setup?