upload via wireless problems

Hi all,

We have a application we have developed that requires the upload of data to our server.

When uploading within our office it works great, and our developer has tested it at their offices and also great.

I tried it in a couple of places (public wifi) and my home (skywifi) and it does not upload. I have tried it on several different tablets same issue. The security protocol is the same on all 4 locations wpa/wpa2 psk

The server uploaded to is within our local area network and is a sbs2010 server our router is a bt 2 wire

Any ideas
censuraAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

PerarduaadastraCommented:
Are you uploading it via FTP? If so, make sure that the firewall isn't blocking FTP access - many do so by default.
0
censuraAuthor Commented:
Yes it is via FTP will check thank you
0
censuraAuthor Commented:
ftp port 21 open
0
Hey MSSPs! What's your total cost of ownership?

WEBINAR: Managed security service providers often deploy & manage products from a variety of solution vendors. But is this really the best approach when it comes to saving time AND money? Join us on Aug. 15th to learn how you can improve your total cost of ownership today!

PerarduaadastraCommented:
I assume you mean SBS 2011, not 2010...

Check the 2-Wire firewall at home to see if port 21 is open; on domestic-grade equipment it usually isn't, by default.

Public Wifi is unlikely to permit FTP traffic because of the risk of saturating the connection. A few large file transfers are going to consume a lot more Wifi bandwidth than dozens of emails and Facebook updates, so blocking FTP makes the problem go away and keeps the customers happy.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Craig BeckCommented:
Are you sure this isn't a FTP firewall issue?  You may need to open port 20 as well as 21.  Also check that you're using passive FTP and not active-mode.  That won't work through a firewall/NAT.

You need to ensure you're port-forwarding TCP/21 to your SBS server on the 2-Wire router too.
0
PerarduaadastraCommented:
craigbeck is entirely correct in what he says. There's a very useful explanation of active and passive FTP operation here:

http://slacksite.com/other/ftp.html

... which will help you to see why FTP might be failing in your situation.
0
censuraAuthor Commented:
Ok we are set up with passive FTP and have added port 20 to the already open 21 ftp port and still no luck
0
PerarduaadastraCommented:
These ports have to be open on every firewall between the remote client and the server. If your 2-Wire router has the ports open and your LAN firewall has them open, then check the Windows server firewall as well.
0
censuraAuthor Commented:
thanks
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Web Applications

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.