Can't start: Problems connecting to backend

Warhammer: Vermintide 2 Technical Support
1

Issue Description:
Downloaded and installed the game today through steam. After opening the launcher right off the bat the play button is greyed out, when I hover over it it says “Can’t start: Problems connecting to backend”. I managed to get into the game and even play through the tutorial, as the button would become active after waiting 5-10 minutes. The other part of the problem is, even if I manage to play the game i get booted out with various server error codes which force me to shutdown the game. I switched to google dns to see if it makes any difference, it didn’t.

Below are crash reports from the few times i managed to get into the game, play a bit before getting inevitably booted out.
console-2022-11-13-16.05.04-f97b9b85-0480-4b31-9133-269555f9db1c.log (102.3 KB)
console-2022-11-13-16.13.38-2e89a449-9611-4a05-a29c-3f65975009d1.log (7.2 KB)
console-2022-11-13-16.15.48-8ae14804-6453-4964-94a6-1371e318b607.log (1.6 MB)
console-2022-11-13-16.53.58-56e056ce-ebe0-4c69-9125-a3ebcff4dae6.log (77.3 KB)
console-2022-11-13-14.55.18-8b6056eb-282d-4dd5-a9ff-335f00b9cf18.log (13.6 MB)

Crash Report (If Applicable):
[Please see instructions on how to provide a crash report in the pinned Topic]

Error Displayed (If Applicable):

Steps to Reproduce:
[Please add the steps that can help our QA department in reproducing the issue. For example:]

  1. Play Convocation of Decay as Kruber (Mercenary)
  2. Attempt to pick up the second Grimoire
  3. Crash

Map Name (If Applicable):

Platform:
[Steam/Xbox/PlayStation]
STEAM

Player ID:
[Steam ID/Steam Profile URL/GamerTag/PSN ID]

Approx. Time of Issue & Timezone:
[MM/DD/YYYY, 00:00AM/PM] [TIMEZONE]

Reproduction Rate:
Once - Rare (<10%) - Unusual (<25%) - Common (<50%) - Often (<75%) - Constant (100%)
100%

Upload Supporting Evidence:
[Screenshots, recordings, links to Twitch VODs, etc.]

Upload Console Log:

  1. Press the Windows key + R
  2. Enter %appdata% within the search input and select ‘OK’
  3. Navigate to AppData\Roaming\Fatshark\Vermintide 2\console_logs
  4. Locate the console log that corresponds with the session in which the issue occurred, by looking at the timestamps in the log names
  5. Upload here

Upload user_settings.config:

  1. Press the Windows key + R
  2. Enter %appdata% within the search input and select ‘OK’
  3. Navigate to AppData\Roaming\Fatshark\Vermintide 2
  4. Locate the user_settings.config in this directory
  5. Upload here
2

After a day spent troubleshooting and testing i discovered I’m able to connect through a VPN but not without it. This is only happens with vermintide 2.

3

Enabling UPNP in my router seems to have fixed the issue. It’s odd i couldn’t find any threads with similar problems and nothing mentioning UPNP and vermintide 2. Enabling UPNP is a potential security hazard, so just a heads up to anyone finding this thread in the future.

4

@backendConnectionErr, glad you were able to resolve this! :slight_smile:

5

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