Can't log in?

I have the same problem. Black character screen. I got DC’d while in Stormwind suddenly. At first I couldn’t log back in to B-net even but after a while I could. Now, like I said, there’s a black screen in my server character list.

Hey guys,

Moving this over to Technical Support.

if you’re still having trouble getting stuck on a black character selection screen, try creating a new character and log it in and out. If that doesn’t help, continue with the troubleshooting steps over here: Can’t Connect to World of Warcraft.

I can’t even ‘‘go online’’ on battlenet launcher. If I try to start wow I wont get past login screen… whats goin on recently? 2 days ago authentication got messed up and now this… Rly unhappy as a payin customer, when I finally got time to play I cant play!

Same Can’t log in Game or Battlenet, try to use VPN working fine so seem like the problem is my IP got blocked ?

Issues here too, cant connect to europe b-net app but swapping to america works fine? But then when on america I can not load the game instead so something is def up.

Hey Hylden and Sòón

We currently do not have any reports of connection issues so my advice is that you try the following steps:

You can also check if there are any problems with our games and Battle.net through our Twitter page which provides faster updates into everything that is going on:
https://twitter.com/BlizzardCSEU_EN

Hope this helps! :slight_smile:

Same, I´m only offline when I log in. Can´t go online.

Greetings Álmúr

I would give it a go at trying the steps from my post in this thread.
You can also use this article to check our twitter and realms status for any potential issue coming up. :slight_smile:

I have tried everything in the “Connection Troubleshooting” list but nothing works. I can´t log in. I´m offline

if i dont use VPN i can’t have acces to the website/Battlenet/Game, i’m using the same PC the only thing that change is my IP. With VPN is working fine on everything.

Same here, i cant login after yesterdays maintainance.
error : BLZBNTBGS80000011after blizzard launcher times out

Same problem as the person above this post.

And I am having the exact same problem: BLZBNTBGS80000011 as error code. I tried everything suggested: cache cleaning, reinstalling destktop app, etc etc.

seem fixed for me i can log with my IP again.

Tried everything possible, uninstall the app, re-do the authenticator, reset password… Nothing helps, still cannot log in. Even b-net app cannot find my classic wow for some reason.

Im having some similar issues. I randomly dced. Got back to login screen with my chracters, my main character had no place underneith its name(place where u logged out).Tried to login, got a message that said character does not excist. Cleaned cache interface and wtf folders. Now I am back able to login but the loading screens are really slow, feels like there is a 10-20 second delay between every action i do in the game(talking, click on npc, mounting, switching form, …) Anyway to fix this? My other characters have no such problems at all and my latency/ping/ms is 15-18. Please help me!

I´m still having the same problem today…

if you google the error code BLZBNTBGS80000011 that you get, there are tutorials how to fix this on youtube. I followed the guide and now it works and i can reconnect again.

Im not sure what it does but i added new DNS (Google public DNS) and it worked:

8.8.8.8
8.8.4.4

Hi,

I have the same problem since last update (for week and a half already), and it became so annoying that I bothered to do a troubleshooting. Maybe my explanation would sound nonsense to you, but I would strongly suggest you show it to your network engineers as the problem is your software/hardware that build tcp connection does not react on certain conditions as it should by the standard. And there is no need to tell me to reset my network card settings as I did solve it for myself with workarounds here and there.
It all goes down to this packet trace of communication between my network provider and your login and realm server:

20:41:18.292602 IP (tos 0x0, ttl 62, id 0, offset 0, flags [DF], proto TCP (6), length 64)
    10.0.0.226.53177 > 37.244.54.40.1119: Flags [S], cksum 0x3718 (correct), seq 4246353231, win 65535, options [mss 1460,nop,wscale 6,nop,nop,TS val 785408915 ecr 0,sackOK,eol], length 0
20:41:18.336546 IP (tos 0x0, ttl 121, id 0, offset 0, flags [DF], proto TCP (6), length 48)
    37.244.54.40.1119 > 10.0.0.226.53177: Flags [S.], cksum 0xa94b (correct), seq 374560496, ack 4246353232, win 65535, options [mss 1460,sackOK,eol], length 0
20:41:18.391706 IP (tos 0x0, ttl 62, id 0, offset 0, flags [DF], proto TCP (6), length 40)
...
20:41:18.444969 IP (tos 0x0, ttl 55, id 1028, offset 0, flags [DF], proto TCP (6), length 3737)
    37.244.54.40.1119 > 10.0.0.226.53177: Flags [P.], cksum 0x7589 (incorrect -> 0xd951), seq 1:3698, ack 152, win 30016, length 3697
20:41:18.444996 IP (tos 0xc0, ttl 64, id 16769, offset 0, flags [none], proto ICMP (1), length 576)
    10.0.0.226 > 37.244.54.40: ICMP 10.0.0.226 unreachable - need to frag (mtu 1476), length 556
	IP (tos 0x0, ttl 55, id 1028, offset 0, flags [DF], proto TCP (6), length 3737)

I have to emulate my own network provider by faking it as a vpn tunnel to some other place, so I can have same circumstances (shortened MTU) and be able to to catch what is happening on the provider side sniffing traffic fired out of remote vpn side to the internet.
What you can see from it and what is crucial for understanding the problem is that start of the session requests MSS to be 1460 bytes, which is already kind of wrong on my network side, but not fatally, this happens due to my local computer be connected by ethernet cable and having mtu 1500 by default, and my router connected to my network provider by ppp connection and having mtu 1492, 8 bytes less, so my provider in reality cannot send me packets with data more than 1452 bytes in them (mss should be 1452). These circumstances are not a problem as my provider can actually fragment packets sent to my and chop them to smaller ones and my router can reassemble them back to big normal fat 1460 bytes of data as ethernet can transmit. But then the second issue kicks in, which is not really an issue by itself as well. As you can see on the packet number three from your host to me it has “flag [DF]”, which means “don’t fragment”. This is a normal type of packet especially for establishing encrypted connections which connection to blizzard is. And the packet is bigger than 1460 bytes of data (the size on the dump is even bigger, but this is due to tso, this is not really important) This is the problem start, as my network provider see that it has the packet bigger than it can send on the line as connection between it and my router is ppp which can hold no more than 1452 bytes of data and it has explicit command to not fragment this packet. But then there is solution to that for the internet as well, the provider send back to originator control packet “need to frag” asking the server to chop the packet smaller, as it want the packet to not be fragmented. And it never happens. Server keep resending the packet until giving up as it receive no answer to it. And this is exactly what broke recently. Your edge router software, or whatever you use to terminate tls does not react on the ICMP control packets at all. Either they don’t reach it, or it doesn’t bother.
There are few things to back my theory:

  • Why this is not a catastrophe and only some people are affected? With modern internet not a lot of people have this kind of network layout they use. But still it is pretty common. All you need to have is ethernet network inside your house, connection to provider that require additional header, some kind of ppp or other tunnelling and a router that doesn’t bother to squeeze MTU on the local net.
  • Why it sometimes works and sometimes doesn’t? There is either one server in your network that honour those control packets and if you lucky enough to hit it and it works, or sometimes tls session is being built the way it fits to smaller packets as only 8 excessive bytes matter.
  • Why people write that IT mumbo-jumbo like resetting their network card helped? Either reset dropped custom MTU settings they had for no reason set and they picked up proper settings from their router, or again they hit the host that honour ICMP need fragment.
  • Why it worked flawlessly before and broke only recently? I don’t know, you tell me. I can make couple of theories right off the cuff - either edge router software was upgraded or changed last week Wednesday and now it either set DF, or ignore need fragment, or the way TLS is built was changed and now it is a little bit more fat than it was, and the edge router was always like this.

Anyway, I don’t think anyone is going to react on that, I solved the problem for myself setting proper MTU on my network as A and have remote tunnel at hand where I can control MSS on leaving packets as B, but I honestly advice you blue guys show it to your network engineers.

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