SBS 2003 with Filezilla...was working now its not.
Posted on 2009-04-24
So here's my problem. For the past 3 months my customer has been using Filezilla in their SBS 2003 box. They have not had any problems and all had been connecting well until last 2 weeks. Now, client gets the 421 error can't make data connection. SBS box has RRAS running, and always has. I have been using Passive mode with no problems. Always had port 21 open in the SBS Firewall and working well.
The only thing I can think of is if Microsoft released an update that killed my Filezilla this past 2 weeks.
A. I can't open a range of ports on RRAS (5000-5001). Already tried that for Passive.
B. When I un-tick basic firewall in RRAS on the internet nic, Filezilla works well so I know its my sbs firewall.
C. I don't want to disable my SBS firewall and use router firewall.
D. I have IP Pass through on dsl modem, so no firewall is running on dsl modem
Like I said, it had been working fine and I have done windows updates the past week or so.