Problem Details
osu! client can't update or re-install properly. Running the old installer in Repair mode throws an error code 2720: http://puu.sh/wmu0O/f838c6bef9.png. Deleting config files did not help.



Video or screenshot showing the problem
Trying to log in on a new config file: http://puu.sh/wmu4h/5a29b50409.png Translation of the error: "Connection to Bancho has been interrupted: your osu! version must be updated"
Trying to run osu!repair: http://puu.sh/wmubJ/5994fe0c6e.png Translation of the error: "An error has occured, check your Internet connection"
Trace route to osu.ppy.sh: http://puu.sh/wmurR/8b3a5a76c3.png
Trace route to m1.ppy.sh: http://puu.sh/wmuHY/41d910667d.png
Trace route to cho.ppy.sh: http://puu.sh/wmuNj/585c63d2e1.png





osu! version: b20170503.4

mby can you translate these errors to english?

Already did that and included the translations to the OP.

Ok then try everything what I'll say:
Restart your PC, restart modem/router, renew IP config, flush DNS.

Are you using a VPN or proxy? If so, disable it.
Otherwise follow the steps below

Method 1: Antiviruses or Firewall

1. Try checking if your antivirus isn't blocking osu! From connecting

Method 2: IP conflicts

1. Try turning off your router by unplugging it and wait for 5 minutes before turning it on again.

Method 3: Reset adapter

1. Try disabling ethernet adapter then enable it again

Method 4: DNS Cache

1. Try clearing DNS
   
   1. Open up run (Windows logo + R)
   2. Type cmd and press enter
   3. Type ipconfig /flushdns and press enter

Method 5: Try using a VPN

1. You can try using a VPN like [lucky:1337]Psiphon[/lucky:1337] and see if it works from there
   Just download from the website and open it, after it connects try again.

Kao wrote:

Are you using a VPN or proxy? If so, disable it.
Otherwise follow the steps below

Method 1: Antiviruses or Firewall

1. Try checking if your antivirus isn't blocking osu! From connecting

Method 2: IP conflicts

1. Try turning off your router by unplugging it and wait for 5 minutes before turning it on again.

Method 3: Reset adapter

1. Try disabling ethernet adapter then enable it again

SPOILER

Method 4: DNS Cache

1. Try clearing DNS
   
   1. Open up run (Windows logo + R)
   2. Type cmd and press enter
   3. Type ipconfig /flushdns and press enter

SPOILER

Method 5: Try using a VPN

1. You can try using a VPN like [lucky:1337]Psiphon[/lucky:1337] and see if it works from there
   Just download from the website and open it, after it connects try again.

I think using VPN is not the best way.

Venix wrote:

I think using VPN is not the best way.

Which is why it is the last option :facepalm:

Osu refuses to update! I've tried all the strategies on this forum, and still I run into the problem. Please assist asap! I also can't download new maps while this problem persists. I can't even do online play! At least I can still update maps...
I could go on and on about my problems, but a diagnosis would be best



One more thing: The system I use is Windows XP (no, seriously).

osu! doesn't get along with Windows XP lately. t/606972

Please paste the contents of the update.log file, found in the Logs folder inside your osu! folder, here.

Warning: I accidentally left the updater running overnight.

Here's the first bit:

6/18/2017 12:58:14 AM: Running cleanup..
6/18/2017 12:58:14 AM: Cleanup successful!
6/18/2017 12:58:14 AM: Resetting update process
6/18/2017 12:58:14 AM: Running repair (False)
6/18/2017 12:58:14 AM: Force update requested
6/18/2017 12:58:14 AM: CallbackStatus updated to Checking
6/18/2017 12:58:14 AM:
6/18/2017 12:58:14 AM: Beginning update thread
6/18/2017 12:58:14 AM: Stream: Stable
6/18/2017 12:58:14 AM:
6/18/2017 12:58:14 AM: Running cleanup..
6/18/2017 12:58:14 AM: Cleanup successful!
6/18/2017 12:58:14 AM: Requesting update information...
6/18/2017 12:58:15 AM: d3dx9_31.dll: NEW
6/18/2017 12:58:15 AM: Microsoft.Xna.Framework.dll: NEW
6/18/2017 12:58:15 AM: osu!.exe: CHANGED (cached)
6/18/2017 12:58:15 AM: osu!ui.dll: CHANGED (cached)
6/18/2017 12:58:15 AM: osu.dll: NEW
6/18/2017 12:58:15 AM: x3daudio1_1.dll: NEW
6/18/2017 12:58:16 AM: osu!gameplay.dll: CHANGED (cached)
6/18/2017 12:58:16 AM: Creating staging folder
6/18/2017 12:58:16 AM: CallbackStatus updated to Updating
6/18/2017 12:58:16 AM: Processing d3dx9_31.dll...
6/18/2017 12:58:16 AM: Beginning download of d3dx9_31.dll (http://m3.ppy.sh/r/d3dx9_31.dll/f_eea5e ... 1c97b5968f)...
6/18/2017 12:58:16 AM: Processing Microsoft.Xna.Framework.dll...
6/18/2017 12:58:16 AM: Beginning download of Microsoft.Xna.Framework.dll (http://m1.ppy.sh/r/Microsoft.Xna.Framew ... 5e92f21d4a)...
6/18/2017 12:58:16 AM: Processing osu!.exe...
6/18/2017 12:58:16 AM: Exists locally; checking for patchability...
6/18/2017 12:58:16 AM: No patches available; falling back to full download
6/18/2017 12:58:16 AM: Beginning download of osu!.exe (http://m3.ppy.sh/r/osu!.exe/f_35f34a211 ... bb5d7d7df8)...
6/18/2017 12:58:16 AM: Processing osu!ui.dll...
6/18/2017 12:58:16 AM: Exists locally; checking for patchability...
6/18/2017 12:58:16 AM: Failed download of Microsoft.Xna.Framework.dll! Error: System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. ---> System.IO.IOException: Received an unexpected EOF or 0 bytes from the transport stream.
6/18/2017 12:58:16 AM: at System.Net.FixedSizeReader.ReadPacket(Byte[] buffer, Int32 offset, Int32 count)
6/18/2017 12:58:16 AM: at System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest)
6/18/2017 12:58:16 AM: at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)
6/18/2017 12:58:16 AM: at System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest)
6/18/2017 12:58:16 AM: at System.Net.Security.SslState.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest)
6/18/2017 12:58:16 AM: at System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byte[] buffer, AsyncProtocolRequest asyncRequest)
6/18/2017 12:58:16 AM: at System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult)
6/18/2017 12:58:16 AM: at System.Net.TlsStream.CallProcessAuthentication(Object state)
6/18/2017 12:58:16 AM: at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
6/18/2017 12:58:16 AM: at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
6/18/2017 12:58:16 AM: at System.Net.TlsStream.ProcessAuthentication(LazyAsyncResult result)
6/18/2017 12:58:16 AM: at System.Net.TlsStream.Write(Byte[] buffer, Int32 offset, Int32 size)
6/18/2017 12:58:16 AM: at System.Net.PooledStream.Write(Byte[] buffer, Int32 offset, Int32 size)
6/18/2017 12:58:16 AM: at System.Net.ConnectStream.WriteHeaders(Boolean async)
6/18/2017 12:58:16 AM: --- End of inner exception stack trace ---
6/18/2017 12:58:16 AM: at #=qoWE5ObmAkr5I9ZgqFEFGhoVviqOTUpg1$93ckOvinRI=.#=qgJw6Z9_AZvVWjmx1ccWTvpCWh1JiqXrObIywlWAJwvc=()
6/18/2017 12:58:16 AM: at #=qlnCOLy$HSsN5y4nwJSR1kl_QwUh_tEFFWistSkkr_rIM6GFffOhTTe6iiMUtei65.#=qedfl3R7YZf5d18Nal4tjDw==(Boolean #=q1iJ1brdLbr18IL8dmr8cHA==)
6/18/2017 12:58:16 AM: at #=qlnCOLy$HSsN5y4nwJSR1kl_QwUh_tEFFWistSkkr_rIM6GFffOhTTe6iiMUtei65.#=qjwA6$sDYfzgGV3z66toyxMqlro1SoryKrJylg6uf13w=.#=qtYUVsvjWikKb2jLx82dHbNCgfm1SbiWmLmYDVQQh2II=()
6/18/2017 12:58:16 AM: No patches available; falling back to full download
6/18/2017 12:58:16 AM: Beginning download of osu!ui.dll (http://m3.ppy.sh/r/osu!ui.dll/f_8be4927 ... 379f881f58)...
6/18/2017 12:58:16 AM: Processing osu.dll...
6/18/2017 12:58:16 AM: Beginning download of osu.dll (http://m1.ppy.sh/r/osu.dll/f_c400362e88 ... 9235f95ffd)...
6/18/2017 12:58:16 AM: Processing x3daudio1_1.dll...
6/18/2017 12:58:16 AM: Beginning download of x3daudio1_1.dll (http://m2.ppy.sh/r/x3daudio1_1.dll/f_12 ... 5c39a77d80)...
6/18/2017 12:58:16 AM: Processing osu!gameplay.dll...
6/18/2017 12:58:16 AM: Exists locally; checking for patchability...
6/18/2017 12:58:16 AM: Failed download of osu.dll! Error: System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. ---> System.IO.IOException: Received an unexpected EOF or 0 bytes from the transport stream.
6/18/2017 12:58:16 AM: at System.Net.FixedSizeReader.ReadPacket(Byte[] buffer, Int32 offset, Int32 count)
6/18/2017 12:58:16 AM: at System.Net.Security.SslState.StartReadFrame(Byte[] buffer, Int32 readBytes, AsyncProtocolRequest asyncRequest)
6/18/2017 12:58:16 AM: at System.Net.Security.SslState.StartReceiveBlob(Byte[] buffer, AsyncProtocolRequest asyncRequest)
6/18/2017 12:58:16 AM: at System.Net.Security.SslState.CheckCompletionBeforeNextReceive(ProtocolToken message, AsyncProtocolRequest asyncRequest)
6/18/2017 12:58:16 AM: at System.Net.Security.SslState.StartSendBlob(Byte[] incoming, Int32 count, AsyncProtocolRequest asyncRequest)
6/18/2017 12:58:16 AM: at System.Net.Security.SslState.ForceAuthentication(Boolean receiveFirst, Byte[] buffer, AsyncProtocolRequest asyncRequest)
6/18/2017 12:58:16 AM: at System.Net.Security.SslState.ProcessAuthentication(LazyAsyncResult lazyResult)
6/18/2017 12:58:16 AM: at System.Net.TlsStream.CallProcessAuthentication(Object state)
6/18/2017 12:58:16 AM: at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
6/18/2017 12:58:16 AM: at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
6/18/2017 12:58:16 AM: at System.Net.TlsStream.ProcessAuthentication(LazyAsyncResult result)
6/18/2017 12:58:16 AM: at System.Net.TlsStream.Write(Byte[] buffer, Int32 offset, Int32 size)
6/18/2017 12:58:16 AM: at System.Net.PooledStream.Write(Byte[] buffer, Int32 offset, Int32 size)
6/18/2017 12:58:16 AM: at System.Net.ConnectStream.WriteHeaders(Boolean async)
6/18/2017 12:58:16 AM: --- End of inner exception stack trace ---
6/18/2017 12:58:16 AM: at #=qoWE5ObmAkr5I9ZgqFEFGhoVviqOTUpg1$93ckOvinRI=.#=qgJw6Z9_AZvVWjmx1ccWTvpCWh1JiqXrObIywlWAJwvc=()
6/18/2017 12:58:16 AM: at #=qlnCOLy$HSsN5y4nwJSR1kl_QwUh_tEFFWistSkkr_rIM6GFffOhTTe6iiMUtei65.#=qedfl3R7YZf5d18Nal4tjDw==(Boolean #=q1iJ1brdLbr18IL8dmr8cHA==)
6/18/2017 12:58:16 AM: at #=qlnCOLy$HSsN5y4nwJSR1kl_QwUh_tEFFWistSkkr_rIM6GFffOhTTe6iiMUtei65.#=qjwA6$sDYfzgGV3z66toyxMqlro1SoryKrJylg6uf13w=.#=qtYUVsvjWikKb2jLx82dHbNCgfm1SbiWmLmYDVQQh2II=()
6/18/2017 12:58:16 AM: Failed download of x3daudio1_1.dll! Error: System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. ---> System.IO.IOException: Received an unexpected EOF or 0 bytes from the transport stream.

What's your diagnosis, Nikos?

iaport wrote:

What's your diagnosis, Nikos?

It's the same error, the user, whose thread I linked, is experiencing. Give a try to what I've suggested there.

OP here.
Tried everything from flushing DNS cache to rebooting router and Ethernet adapter. Will try VPN later.
Here is update.log: http://puu.sh/wnEDw/0d2c963f74.log
I don't know whether it's needed or not, but here is a link to update_success.log: http://puu.sh/wnEy1/e20e56aa1b.log

As you said before Nikos: "It's the same error, the user, whose thread I linked, is experiencing. Give a try to what I've suggested there."

If you ask me, it was a great idea! Problem is, all it did was speed up my pc a bit. Issue persists. Any ideas?

iaport wrote:

As you said before Nikos: "It's the same error, the user, whose thread I linked, is experiencing. Give a try to what I've suggested there."

If you ask me, it was a great idea! Problem is, all it did was speed up my pc a bit. Issue persists. Any ideas?

Does reinstalling with the old installer help, whatsoever? Make sure to backup your files if you're going to reinstall osu!, though.