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No longer able to connect to FTP servers using TLS

bigjim
Regular

Hi there

I've had three home broadband for over a year now. I'm a web developer that works from home and sometimes needs to transfer various files to FTP servers.

Something has changed within the last week as I am no longer able to securely connect to any FTP server using TLS. It's worked fine for the past year. I can FTP via connecting to my non-three phone as a hotspot, so it's not a hardware or software issue. 

This is a major issue for me. 

Please can someone assist. 

14 REPLIES 14
benwalker
Fledgling

So, the issue went away on it's own not long after my post, and was working perfectly up until the outage problems yesterday. It's now back, and using a VPN is again the only workaround. It's clearly an issue Three is aware of given it being fixed last time...

seredrup
Fledgling

I don't know if this helps, but I too am a developer and recently hit a similar problem using Filezilla.
what I found was that one site I was trying to connect to (which I had previously connected to successfully) I could no longer reach, BUT a different site I was able to reach.
After a bit of checking and searching, I tried again but this time with a VPN running.

This time I could connect ot BOTH sites successfully.
Still not sure what is going on exactly, but I wondered if Three had some filters blocking certain IP addresses?

Anyway, at least I can now use FTP providing I'm running a VPN.

Steve Redrup.
(3 Home Broadband User on 5G).

JonathanB
Community Moderator
Community Moderator

Hi everyone,

I'll be honest I'm not too familiar with FTP, other than a quick online search, but I'm sure if we can eliminate as many factors as possible we can then raise this onto our Service Desk.

Can anyone let me know, and multiple users corroborate if possible:

  • Is this issue Three Broadband specific, or happening with mobiles on Three too?
  • Does it make any difference whether the connection is over 3/4/5G?
  • Is this a constant issue, or intermittent?
  • Does this happen on both of our APNs 3internet (default for Broadband) and three.co.uk (default for phone SIMs)?
  • Assuming it's a router/broadband specific issue does switching to an IPv4 only connection help?

Let me know on the above and this should be a good starting point for getting an investigation started.

Thanks,
Jonathan



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daveylad
Fledgling

Can you tell me is this issue fixed yet? Just moved to 3 home broadband and now can't publish any apps to my web server.

tournesolbleu
Fledgling

Hi Did you ever get to the bottom of this, i'm having the same issue and it's driving me crazy! Thanks in advance.

Slobcat1337
Fledgling

Also a web developer and having the same issue, anyone know how to fix this?

benwalker
Fledgling

@bigjimI'm suffering the same issue. Did you locate a fix?

presnickson
Fledgling

@Benphp I've been able to connect using a VPN

JonathanB
Community Moderator
Community Moderator

Hi @bigjim@presnickson,

Which model of router are you using?

Thanks,
Jonathan



Mod tip! The author of a post can hit 'Accept as Solution', to highlight a reply that helped solved their query.