I have since tried to manually set the switch ports to 1gb and the NIC thinking that it may be an autosensing issue but this failed to work either.Īt least I am getting somewhere at long last and I can try and get my FTP off site replication back up and running again. We managed successfully to get the FTP jobs to run without a problem by setting the NIC on the server (within Windows 2008) to 100mb. We patched one of the servers but this still made no difference. We tried looking at the patch levels of two win 2008 servers as they were both experiencing the same issues. Whilst this worked we struggled to interpret anything useful from the captured packets. We managed to get wireshark up and running and captured the information. Just an update as we are making a bit of progress. I've disabled the windows firewall on the server but this hasn't made a bit of difference.Īs a long shot ive just been and changed the network cable and switch port.Īnyone any ideas on how to trouble shoot this further as I'm running out of ideas.
Connecting out to any FTP server (using any FTP client) doesn't seem to want to work. This didn't work either and indicates an issue with the server. I then tried connecting to a second FTP server from one site to another. This is what I thought was a little odd as from other machines (win7) the FTP client running across the same site works ok going through the firewall. I was able to connect to the FTP server ok from a desktop between the two sites. So far I have ruled out any isses with the FTP server by connecting to the server from the same site as the FTP server - works ok. I have checked the firewall rules and all are setup as they were with rules to allow for FTP access through the firewall.
I initially thought this was a firewall issues so carried out a couple of checks. The client then reconnects several times before the FTP server states too many connections. The speed then starts to crawl and eventually reconnects.
I then start to upload any file and after anywhere between 2-4 minutes the connection/speed seems to drop. I am able to connect filezilla to the FTP server and I retreive the directory listing without any problems. All was working on for several weeks and now we are experiencing connection problems with any FTP client from the server (to any FTP server). This is a backup server and I have a scheduled FTP job setup to transfer backups to another site through a router, over VPN, to an FTP server on another of our sites. I have a 2008 r2 server running at one site. Just wondering if anyone can offer any advice i am having with a strange FTP connection problem.
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