Constantly Disconnecting to Error 51900319. Can't seem to find any helpful advice!

Your home connection is really bad. We expect to see ping times of 1-2, maybe as high as 10 and yours goes to 154, which seems to carry through the test. You also have 1% packet loss from the first hope that seems to continue through the test.

If you’re wireless, try changing bands or channels. If you’re wired, try changing ethernet cables. In both cases, check for updated network drivers.

Thank you for the insight! Quick question, does the large packet loss at the address 32.130.20.42 signify a different issue than what you highlighted?

It probably indicates that the hop is tuned to at least partially ignore the test packets. It drops back down to 1% packet loss right after, which it couldn’t do if 78% of the packets got lost on that hop.

That makes sense.

I think I solved my issue! I’m embarrassed to say it but I think it was a bad or out of date driver. I was certain I had tried updating my network adapter’s driver and it didn’t change anything in the past. I decided to try again based on your suggestion for the hell of it and it seems that I’m not experiencing anymore packet loss or high ping.

Time will tell but I’m hoping that was it!

Edit: Ok so after a few hours of seamless gameplay, around the time the Classic servers updated to phase 2 I started being booted from the game again. sigh

I just came looking for answers. Just this afternoon, I can’t stay connected for more than 5-15 mins at a time then getting the 51900319 error. Been playing fine for months, but today has been disconnect after disconnect.

Like above, I’m trying to update network drivers.

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I would not use outdated IPs as a test for Blizzard’s datacenters. After they stopped making that info available to the public, they likely changed it all — at least that’s the common protocol.

I wouldn’t worry about the 154ms worst ping, because doesn’t affect the average throughout the other hops in the test. It’s probably just flood protection on the modem/router, just like the hop showing 78% packet loss.

However, the packet loss on hop #1 is real and can cause disconnections. The equipment might be degrading or there might be new interference in the home/neighborhood if you’re playing on Wi-Fi.

I did a new test after updating drivers again and my packet loss is back to 0. However, I’m still randomly disconnecting to the 51900319 error. It’s normally preceded by almost 30-45 seconds of lag, this time.

My wireless adapter (TP-Link Archer T4U Plus v 1.6) works for every other instance of internet I’m utilizing. Websites are fine, streaming is fine, and I played Marvel Rivals for hours yesterday with not a single hiccup. It’s only WoW giving me these issues.

I would check with the ISP for updates on the modem. Then, I would swap cables if that’s possible. Beyond that, swap NIC.

Since we know the servers aren’t going down as often as you’re disconnecting, the problem does seem isolated to your setup.

I keep having the random 51900319, no ping time outs. It’s the Battle.net app that becomes disconnected then in turn disconnects me from the game.

Tons of solutions for that error on Reddit. Switching fullscreen windowed to full screen. Updating Windows .NET framework. Deleting the cache.

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