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Since this morning I am unable to make a update with many files (i try to update the piwikinstallation, requires me to upload about 24mb). After a while, filezilla gets the answer from server, that too many clients are connected.
I did not change anything which could be related to this, in the past few days, nor windows, firewall or filezilla setting. There was an windows update 2 days ago, but I already recovered it, it did not cause the problem.
The strange thing is, I set in filezilla settings, that there is only one maximum simultaneous connection allowed. I have started laptop and filezilla new several times.
This problem is not limited to the one server, on the other server I tried, I get the same error after a while.
I tried also the other client, Fileduck or what it was, the one with the yellow duck, but I think its not working also, I do not receive any errors, (it does not say anything like in filezilla) but it somehow never stop uploading.
I have Windows 7 with only the windows firewall, I also use Avast but without firewall. I have already tested to shut off the windows firewall and the firewall of our adsl router, but it did not help. I also restarted the router.
When I do the filezilla wizard test, I can get almost through if I set to obtain ip-adress from filezillasite.
Here is the log
Connecting to probe.filezilla-project.org
Response: 220 FZ router and firewall tester ready
USER FileZilla
Response: 331 Give any password.
PASS 3.7.3
Response: 230 logged on.
Checking for correct external IP address
Retrieving external IP address from http://ip.filezilla-project.org/ip.php
Checking for correct external IP address
IP 84.251.------ ie-cfb-bjb-bah
Response: 200 OK
PREP 51905
Response: 200 Using port 51905, data token 1696147081
PORT 84,251,191,107,202,193
Response: 200 PORT command successful
LIST
Response: 150 opening data connection
Response: 503 Failure of data connection.
Server sent unexpected reply.
Connection closed
Between the 150 opening and the 503 failure code are several minutes.
I have tried to use a website to check if the port is open, but I get this error:
Error: I could not see your service on 84.251.---- on port (21)
Reason: Connection timed out
So this means the port is closed? How can it be, since the both firewall were shutdown (windows firewall has filezilla in list of allowed programs anyway and the router has never made problems before, and I did not update there anything)
I tried to search on internet, if I can check these things with telnet, I have putty installed, but its long time since I had to do with this network-stuff.. Strange how quick these things get forgotten.
But anyway, how can I furthermore find out, what causes this problem? Is it really that the too many client connections are because of a firewall, which blocks the answers, so filezilla tries to connect new? or something like this?
Any help really appreciated!
I'm not entirely sure I understand. But you have a problem ftp'ing to a remote server. Why are you then checking if your own port 21 is "open"? For an outgoing ftp connection local port 21 is not used (only the remote port 21 is used but that's not what you're checking). You need to check the remote port 21 and that's open otherwise you wouldn't even get a connection. – Rik – 2013-12-18T22:40:05.153
Did you try toggling active (or passive) mode on/off in Filezilla? – Rik – 2013-12-18T22:41:54.607
Thank you for your suggestions. Yes I tried many settings – Owl – 2014-01-09T09:41:04.330