[SOLVED] "Can't connect to Steam network" - No solution for weeks! :(

[Abaris]

EDIT after the issue has been solved, now:
PLEASE READ THROUGH THE ENTIRE THREAD, IF YOU HAPPEN TO ENCOUNTER A SIMILAR PROBLEM, I'M SURE SOME METHOD MENTIONED WILL WORK ON YOU :)

The solution for me was given by http://steamcommunity.com/profiles/76561198030616898
and summed up here: http://steamcommunity.com/discussions/forum/1/828935673158964273#c828936719140986153 <------
Yet, you still can contribute to this thread, if you encounter a similar problem and don't seem to be able to solve it OR you have a suggestion as to what a possible solution might be ;)

(And show some love for the people here - they're trying to help :P)
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First, let me apologize - I know there are a few other different threads concerning this - but since I haven't got an answer through Steam Support, yet AND my problem seems completly unsolvable...well, here we go:

I'm experiencing this very problem ever since a few days.
Every time I try to start steam and log in, I get this message:
http://img197.imageshack.us/img197/3365/connectiontosteamnetwor.jpg (German client)
Or the other one, where it gives me the additional option to retry connecting or running in offline mode.

The system I'm experiencing the error(s) on, is a laptop with wireless internet connection and administrative rights - Steam was running absolutely fine, until some days ago, or so. Other specs and stuff:
_______________________________________
General:

Intel Core2Duo CPU P8700 @ 2.53 GHz
4 GB RAM
500GB HDD in 2 partitions (Steam being on D: )
Some RADEON Mobility Graphics Card
Windows 7 64bit

Security:

Avira Antivir PE
Comodo Firewall
Spybot Search&Destroy
Ad-Aware
Windows Firewall DEactivated
Windows Defender DEactivated

Network:

"Realtek RTL8191SE Wireless LAN 802.11n PCI-E NIC"
on a
"ASUS RT-N66U" router
- German Steam client, German ISP
________________________________________

Again, it's been a couple of days to a couple of weeks, I wasn't using my laptop for a while.
When I first tried to start Steam again, I hadn't done ANY change to my system, before.

So I went and tried everything I could possibly find on google plus any forum I stumbled across.
Here's what I did so far:
(not in chronological order; some things I've done a couple of times in a different order)

- Checking internet connection per se (=> Running fine)
- Checking if other PCs in the network can connect to Steam (=> Working like a charm)
- Logging in to steampowered.com (=> Yup, changed nothing, though)
- Resetting both internet connection and PC (=> Changed nothing)
- Deleting all files in the Steam folder, but Steam.exe + Backup of SteamApps (=> Updated fine, but error messages keep popping up)
- De-installing Steam, rebooting PC, reinstalling Steam (=> Updated fine, but error messages keep popping up)
- Checked update history (WLAN drivers??) (=> not updated - in fact, I had Windows Update turned OFF, the entire time)
- (see above): Updated via Windows Update (=>125 updates and several reboots later, the problem still occurs)
- checked steampowered's list for possibly interfering programs that I might have installed (=> deleted a few[LogMeIn, Hamachi, Daemon Tools, etc.], but didn't expect the problem to change, since I didn't install anything around the time, when the problem first occurred)
- Updating WLAN drivers manually (=> didn't fix it, rolled it back [still no fix :P])
- Again, reinstalling Steam at this point (=> didn't fix it)
- Copying the Steam folder (except SteamApps) from another PC (which could connect just fine) (=> didn't fix it)
- Since I didn't have a system restore point .... I could'nt use that method..
- Tried to fix the registry entries, concerning offline mode (=> already set to 0 ; didn't change anything)
- Don't have the possibility to run wired instead of wireless, so... meh..
- Tried WinFixIt (or something like that) - updated again via Windows Update (=> didn't do anything)
- Used HotSpotShield to circumvent the problem (VPN to connect) (=> didn't change anything)
- Deactivated my Comodo Firewall and Avira AntiVir (=> didn't change anything)
- Portforwarded all necessary ports for steam (=> didn't change anything)
- Set Steam.exe and...well..the entire folder to "trusted file(s)" in Comodo (=> didn't change anything)
- Tried to connect to Steam on the "Administrator" account (=> didn't do anything)
- Tried to connect to Steam in safe mode with network drivers (=> didn't change it a bit)
- Connected to the router via another WirelessLAN stick (=> didn't change anything)
- Tried out different DNS-Servers(eg OpenDNS) on my wireless connection settings (instead of auto) (=> nothing)
- Re-Edited Portforwarding and Portriggering on my router (ASUS RT-N66U) (=> no change)
- Re-activated Windows Firewall and explicitly allowed any Steam-exe's. (=> no change)
- Rolled back ANY Windows update that I could possibly roll back (=> no change; repatched)
- Tried to connect to Steam through another VPN (=> nope)
- Tried deleting single files from the Steam folder (instead of the entire folder) and restart (=> updated instantly, no change)
- Checked the "hosts" file for any funny business, as far as I could tell (=>no change made, no change occurred)
- Checked Hijackthis for any malware or suspicious entries (=> some changes made; no effect)
- Set up msconfig a little different (start less processes and services) (=> no effect after reboot)

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Running out of ideas here -.-
There's IMHO no solution I could find on google, these forums, youtube and any other platform that helped :(
And I'm sure as hell not going to set the system up anew...just because Steam doesn't do, what it so proudly promises.
I payed for my games and I can't access them??? Not good, Steam, not good at all.

...Meanwhile, I've submitted a ticket, did get "http://support.steampowered.com/kb_article.php?ref=1456-EUDN-2493" as a response.

Followed through those steps again - no change.

My thoughts so far:

- It HAS to be a client side problem.
- It does NOT have to do with anything already on my system (drivers, software)
- Since I didn't change anything on my system, it MUST have to do with a patch or sth.
- If the problem was actually caused by Steam, would it be justified to demand any compensation ? :D :D

No, but really...
WTH is wrong with my Steam?
I'd be thankful for any thought or solution on this :)

[T3chm0nkey]

Ffxiv again eredeti hozzászólása:

run "cmd.exe" as admin type ipconfig/flushdns congrats you can now connect

Had the same issue today, and this solution worked wonders. It seems that steam had an update for Dota 2 coming online, and that it was causing my client to glitch temporarily with the same issue presented in the entirety of this thread.

Running Mac OSX 10.6.8, wiht a bootcamp partition for Windows 7. Worked like a charm until 6 hours ago, then when I tried logging back into Steam, no luck for the past hour until I read the tip wiht the command prompt. Same connection as when I logged on last night and everything, then bam... Anywho, thanks for the quick fix!

[Elstree]

Hello everybody Flightless here I've read the entire thread looking for answers and have tried nothing yet. today 24/5/14 i logged into steam only for it to tell me that it could not connect to steam network. i turned off my wifi then went to offline mode. it booted up normally and displayed all of my games. Then steam tells me that my account credentials are outdated and that I have to re-enter my password. after entering my password steam froze and I ended the task by task manager. any ideas? (btw I still haven't tried anything except this soo yeah)

[Ftwpala]

Try disabling the Firewall of your antivirus system and try to connect.If you connect successfully you should be able to enable it afterwards and still connect.

[Ban0ng]

ipconfig /flushdns did the trick for me.

[scayman223]

I need some assistance, I went out for a trip for 2 days and steam was working fine before i left, I came back and now i cannot connect to the network as all, I instantly get a message on steam unable to connect to steam servers.I tried to connect on another computer on the same network and it had been able to connect but had very poor system properties meaning i cannot play any games on it. It seems only my computer cannot connect to steam, i tried the ipconfig/flushdns but it did not work. Any ideas?

[Dualpistolls]

i have this problem too it says that it cant connect to the steam network plz help

[Stay Blazed ⭕⃤]

thanks

[tgum]

same problem
same solution

thanks !!!!

the guys working @ steam should should put a link to this forum entry

[Estouaqui]

Hi had the same problem with Steam!
Fixed it by uninstalling the wireless card driver and downloading the new version driver.
hope this helps.
Thanks!

[Smiley]

i ran as admin fixed it for me

[Chance_The_Rapper]

hey i know this is a really old post but i had the same problem and did exactly what you guys did and now my steam account has been suspended, what could i have done wrong?

[wonderful waffle]

[2014-08-13 09:59:51] Startup - updater built Feb 10 2014 21:36:58
[2014-08-13 09:59:51] Verifying installation...
[2014-08-13 09:59:51] Unable to read and verify install manifest C:\Program Files (x86)\Steam\package\steam_client_win32.installed
[2014-08-13 09:59:51] Verification complete
[2014-08-13 09:59:51] Downloading update...
[2014-08-13 09:59:51] Checking for available updates...
[2014-08-13 09:59:53] Download failed: http error 0
[2014-08-13 09:59:54] Download failed: http error 0
[2014-08-13 09:59:54] failed to load manifest from buffer.
[2014-08-13 09:59:54] Failed to load manifest
[2014-08-13 09:59:54] Error: Download failed: http error 0
[2014-08-13 09:59:54] Error: Steam needs to be online to update. Please confirm your network connection and try again.
[2014-08-13 09:59:55] Shutdown

this is the error i get in steam log folder when i open it up this whole erro shows up on a notpad and i dont understand what to do i need simple words on how to fix my problem

[samoska]

Same here,

I've already tried to :

- flush steam by the command given
- flush dns
- reinstall steam properly
- delete all files except steam.exe and steamapps
- reset tcp/ip as suggested in this discussion
- run as administrator
-check the HKEY_CURRENT_USER\Software\Valve\Steam and Change the Key "Offline" from 1 to 0
-add the next line 87.248.210.253 media.steampowered.com to windows/system32/drivers/etc/

The log text is here:

[2014-08-19 23:16:25] Startup - updater built Feb 10 2014 21:36:58
[2014-08-19 23:16:25] Verifying installation...
[2014-08-19 23:16:25] Unable to read and verify install manifest E:\Programmes\Steam\package\steam_client_win32.installed
[2014-08-19 23:16:25] Verification complete
[2014-08-19 23:16:25] Downloading Update...
[2014-08-19 23:16:25] Checking for available update...
[2014-08-19 23:17:25] Download failed: http error 0
[2014-08-19 23:18:25] Download failed: http error 0
[2014-08-19 23:18:25] failed to load manifest from buffer.
[2014-08-19 23:18:25] Failed to load manifest
[2014-08-19 23:18:25] Error: Download failed: http error 0
[2014-08-19 23:18:25] Error: Steam needs to be online to update. Please confirm your network connection and try again.
[2014-08-19 23:18:36] Shutdown


I precise that steam worked perfectly before the last update and I've never had any problem like that before.

[D@$H]

its been awile before a responce but im getting the same issue and i read alot of the stuff and it all confused me what can i do? to fix this but simplify it

[samoska]

The problem is solved for me, it was zone alarm firewall that I Had unactivated from the start up but which was still continuing to block steam....

♥♥♥♥♥♥ zonealarm though....

I don't know if it could help you, but try to look for your firewall or try the different advices given by the community....