Repeated Error Code: WOW51900319

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1

Edit: based on other topics, this seems to be an issue regarding MacOS 15.0.1 combined with World of Warcraft. A work-around is to disable the Application Firewall in MacOS as even specifically allowing WoW, BNet, etc. does not help. But for users who have Company-policies active, this is not possible (besides of the undesirable nature of the work-around).

Edit2: For me personally it helped to remove Third Party Security Software completely. While it’s said that disabling Network Extensions may do the trick: Repeated Error Code: WOW51900319 - #33 by Cubbins-ravencrest

Since last Friday I’ve been getting disconnects at least every hour.

Usually just pressing the “reconnect” button works, followed by logging back in on a character. Sometimes this has to be done twice, as the loading doesn’t finish and I’m tossed back to the character screen. However, in M+ it seems to be worse, as I can get into a real disconnection-loop (disconnect → reconnect → login on character → logged in → disconnect after 1-3 seconds, repeats 2-4 times it seems).

So, the troubleshooting guides were followed:

What has been tried (often several times):

  1. Restart PC (well, Macbook) and Modem/Router (with some minutes in between); done, several times
  2. Update addons, done
  3. Disable addons, done
  4. Reset UI (WTF-folder, Cache-Folder and Interface-folder renamed to their respective name +Old, relaunched the game, done
  5. Reinstall the game, completely purged everything. done.
  6. Swapped from 5 Ghz to 2.4 Ghz for the sake of testing, done.
  7. Swapped to a wired connection, done.
  8. Ran connectivity tests; to the named Blizzard endpoints (in one of the guides, some TracePath test was mentioned) for WoW in Europe; averaging 28 ms, no packet loss, this even WHILE the disconnections happened. Overall, latency isn’t the issue, that always remains good. It really is just a random server-disconnect. A continues connectivity-test to the other side of this planet; same, 14ms average, no drops, no hickups, nothing; it just works.
  9. In the advanced section of a troubleshooting guide, a mention of resetting cvars was present ( /console cvar_default), done
  10. Using a VPN connection to test a different ISP (and point of entry towards the Blizzard AS), done.
  11. Disabled the antivirus suite, done
  12. Cleaned the NS-cache, renewed the DHCP lease, etc, done
  13. Also repaired WoW a couple of times, but since re-installing doesn’t help either … not really worth mentioning, but done
  14. Checked for updates (WoW as well as OS), all up-to-date, done
  15. Close down all programs; check, done
  16. Resetting some network devices, changing nameservers for the sake of testing, done
  17. Gave my user administrative rights, to make sure it’s not some odd permission issue, done
  18. Moved the WoW install from $home/Applications to /Applications, done

Some notable things, when/after disconnecting the following things can (but not always) happen:

  1. Client logs (in the _retail/logs folder) are often almost all cleaned out completely (Zero bytes). This is odd, as logs are there to mainly debug, if something odd happens…they should actually NEVER be cleared. This is imo a big red flag indicating some client-issues, not network issues.
  2. In-game settings tend to get reverted to a previous state, but not always and not always very synchronous either. Enable action-bars? They’re disabled after a disconnect. Disable the mount-effects? Same. Un-check the network-settings (for speedy connections), same.

And these points, actually, make me suspect that it’s not a simple disconnect from the server but some odd client<>server synchronisation issue.

Some other worthy mentions

  1. Other Macbook on the same network has zero issues, so a general ISP-issue is close to ruled out
  2. Prior to Friday I don’t even recall when I had the last disconnect
  3. Otherwise my connection seems stable, with no packet loss, and if I’m on Discord - there is not a single hickup while the disconnects happen.
  4. Reconnecting usually goes fast, immediate even.
  5. Battle.net client doesn’t seem to disconnect.
  6. I tend to be the only affected on when doing group content, even when playing together with someone who’s on the same local network.

For completeness:

  • Server: Any. Emeriss, Darksorrow/Genjuros/Neptulon, Silvermoon
  • Character: Any.
  • Device: Macbook Air M2, not optimal, but on “fair” settings it worked fine prior to Friday (edit: MacOS 15.0.1)
  • Location: Sweden
  • ISP: Bahnhof
  • Video card: That will be the Apple M2-integrated GPU
  • Description: above

So I’m at a loss, no idea anymore what to do to resolve this.

5 Likes
2

Same situation, after updating the operating system to mac os sequoia version 15.0.1, problems with the game started. Disconnects sometimes 3-4 times in a row, this happens more than 10 times in an hour.
I followed the troubleshooting instructions in all articles, i also opened a ticket, but received a not very good answer, regarding another game “We are aware of the significant issue affecting Warcraft III on Apple devices. Our team is actively working to resolve this, though we do not have an estimated timeframe for a fix at this moment. We recommend periodically attempting to launch the game to check for improvements.”

2 Likes
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Good point actually, could surely be related to this.

At least they know about it .

Thanks for the response, at least I’m not the only one.

1 Like
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I believe that 51900319 is the error code for “connection reset by peer”, which is a generic networking error meaning something somewhere interfered with the connection.

I say “believe”, because Blizzard refuse to publish a definitive list of errorcodes and their meanings, making troubleshooting infinitely harder.

5

Hi,
I have the exact same problem. My M3 Pro started this right after upgrading to MacOS 15.0.1. I’ve being trying to figure this out for about a week now. WoW is unplayable for me because I get disconnected often.

1 Like
6

https://us.forums.blizzard.com/en/wow/t/disconnecting-on-macos-1501/1979291/6

Looks like it’s MacOS Firewall related:

Yes, I have not experienced a disconnect since turning off the macOS firewall.

Which isn’t really a solution but it’s an interesting find.

7

I know, I found this solution on Reddit.
My Mac is company managed so I’m not allowed to turn off the firewall completely - which is understandable. Even if the Mac was my “own” I still would turn off the firewall completely.

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Yeah, I’m in the same boat.

It’s more like that it’s quite clear where the issues lies, so it shouldn’t be too problematic for Blizzard to actually fix this - as so far WoW is the only application on my machine affected by the 15.0.1 patch (which improved integrations with third party security software, so that may be related.)

9

It’s not clear how long this will take to resolve, as it’s unplayable right now. Maybe after the scheduled maintenance (which will be tonight), things will change.

10

Same problem here! Playing on a MacBook M1 Pro 14" with Sequoia 15.0.1.
Let’s hope in the weekly maintenance!

11

I’m on windows and have the same issue.

2 Likes
12

The problem with discounts remained. At one point, i thought it might be an issue with my router, so I updated it. But the problem with the firewall remained.

13

Today it’s even worse, I got disconnected at least 10 times in the last hour.

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It is starting to be unbearable. Can we raise awareness for this issue somehow?

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I have no idea. The internet is figurarly flooded with similar topics. Reddit, US WoW forum, EU WoW forum, Apple Support Forum, …

It’s clear there is an issue since 15.0.1 in combination with WoW. They should be aware of this.

And since their troubleshooting guides always end up in “make a topic on the forum” they should keep an eye on it - one would think.

So this is all we can do, it seems.

2 Likes
16

Have the same issue with WOW51900319. MacOS Sequoia 15.0.1. Can’t play even delves, because disconnection === death, don’t talk about group content.

2 Likes
17

Tbh I’m about to cancel my subscription. I’m not paying for this. And the silence from Blizzard makes it even worse.

4 Likes
18

I’m also having constant disconnects and awful input lag on Windows version, this has affected me for about 2 weeks, I’ve probably played 2 hours since then when I was on every day since War Within launch…

Disabled all addons cleared cache etc nothing worked…

1 Like
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Previous message I wrote before playing game after new hotfix-update. Play all day, no disconnection. For me the problem is solved.

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Disconnections, freezes and crashes ever since updating to MacOS Sequoia 15.0.1.

Mac firewall is disabled so no luck.

I’m playing on Classic Hardcore btw.