Normal•2y ago

Suddenly unable to connect to Normcore servers

Hey guys, as of yesterday I could connect to the servers using the same app key as I am using now.

Initially I try to connect and it gives me

Realtime: Connecting to room "AdminRoom"

Realtime: Connecting to room "AdminRoom"

then

Disconnected

Disconnected

.

Eventually it throws the unable to connect error, and will ocassionally give me:

Realtime (native): BidirectionalClient: Connection Error: Unable to connect to webgl-demo.normcore-matcher.normcore.io on port 3000, error: Cancelled

Realtime (native): BidirectionalClient: Connection Error: Unable to connect to webgl-demo.normcore-matcher.normcore.io on port 3000, error: Cancelled

I have tried:

Deleting all gameobject except the realtime
Connecting to a different wifi network (phone hotspot) - so probably not a firewall issue
Making a blank scene with just the realtime, same result
Generating and trying a different app key in the blank scene, same result

Any help as to where I could start to debug this would be great!

kapa.ai•4/17/24, 2:30 AM

Hi @NeuroGoblin. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base.

kapa.ai•4/17/24, 2:30 AM

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I'm sorry to hear that you're having trouble connecting to the Normcore servers. Here are a few things you could try:

Check your firewall settings: Normcore uses multiple cloud providers to ensure a high-quality connection for all players. If you're having trouble connecting to Normcore's servers, make sure the following IP ranges and ports are enabled. Normcore requires TCP ports 443, 3000 and UDP ports 32,768 - 65,535 to be open for all Normcore Clients. You can find more details about this in the Firewalls + Corporate Networks (https://normcore.io/documentation/architecture/firewalls) section of the Normcore documentation.
Check your App Key: Make sure that the App Key you're using is correct and is entered correctly in the App Key field on the Realtime component. You can create a new App Key from your account dashboard (https://normcore.io/dashboard) if needed. More details about this can be found in the Creating a Normcore application (https://normcore.io/documentation/essentials/getting-started#creating-a-normcore-application) section of the Normcore documentation.
Check your Unity version: Make sure you're using a compatible version of Unity. Normcore 2, for example, requires Unity 2019.1 or above. You can find more details about this in the Upgrading from Normcore 1 to Normcore 2 (https://normcore.io/documentation/guides/upgrading-from-normcore-1-to-normcore-2) section of the Normcore documentation.
Check your connection method: If you're using the
```
Connect()
```
```
Connect()
```
method to connect to a room, make sure you're passing the correct room name and app key. More details about this can be found in the Connecting to a room (https://normcore.io/documentation/realtime) section of the Normcore documentation.

kapa.ai•4/17/24, 2:30 AM

If none of these suggestions help, it might be a good idea to reach out to the Normcore support team for further assistance.
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Note: you can ask me a follow up question by @ mentioning me again

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kapa.ai•4/17/24, 2:30 AM

@196555254496493568 kapa.ai is still learning and improving, please let us know how it did by reacting below

maxweisel•4/17/24, 2:31 AM

is it possible network permissions were denied for your app. this looks like it’s getting blocked at an OS level

NeuroGoblinOP•4/17/24, 2:33 AM

perhaps - I am running this in the unity editor on my mac for the first time (usually use a windows PC)

NeuroGoblinOP•4/17/24, 2:41 AM

i'm gonna try a webgl build and see if it can connect in the browser

NeuroGoblinOP•4/17/24, 2:44 AM

same, unable to connect ( this is reading from _realtime.room.connected)

maxweisel•4/17/24, 2:45 AM

do you have code calling Disconnect? I’ve got a blank project here connected and the webgl demo on normcore.io also connects

maxweisel•4/17/24, 2:46 AM

also triple check your console, some browsers (including flavors of chromium) do not allow localhost to connect to a secure websocket

NeuroGoblinOP•4/17/24, 2:46 AM

No, this scene only has a Realtime component on a blank gameobject and a textmeshpro

NeuroGoblinOP•4/17/24, 2:46 AM

however it does do this on load:

NeuroGoblinOP•4/17/24, 2:46 AM

but previously after the seccond connection attempt it would succeed

maxweisel•4/17/24, 2:46 AM

that’s fine that’s a benign bug in the webgl alpha

maxweisel•4/17/24, 2:46 AM

what does the browser console say?

NeuroGoblinOP•4/17/24, 2:48 AM

NeuroGoblinOP•4/17/24, 2:48 AM

identical to editor besides the 'waiting for client offer'

maxweisel•4/17/24, 2:48 AM

what does the network tab show?

NeuroGoblinOP•4/17/24, 2:49 AM

NeuroGoblinOP•4/17/24, 2:49 AM

I can see the matcher url

NeuroGoblinOP•4/17/24, 2:50 AM

but no additional info

NeuroGoblinOP•4/17/24, 2:50 AM

there is also this one actually

NeuroGoblinOP•4/17/24, 2:50 AM

NeuroGoblinOP•4/17/24, 2:50 AM

which is pending

NeuroGoblinOP•4/17/24, 2:51 AM

and now finished after 39 sec

maxweisel•4/17/24, 2:52 AM

what does it show the response was after it finished?

NeuroGoblinOP•4/17/24, 2:53 AM

empty

NeuroGoblinOP•4/17/24, 2:53 AM

maxweisel•4/17/24, 2:53 AM

also can you do me a favor. you're on mac? can you disable wifi and turn it back on again?

maxweisel•4/17/24, 2:53 AM

there's a chromium bug we've seen where chrome thinks its offline and web sockets fail to connect

maxweisel•4/17/24, 2:53 AM

cycling wifi seems to do it

NeuroGoblinOP•4/17/24, 2:55 AM

no luck, tried 2 wifi networks too

NeuroGoblinOP•4/17/24, 2:55 AM

when i get home tonight i'll be able to confirm if this is isolated to the mac

NeuroGoblinOP•4/17/24, 2:56 AM

given that i have the same problem in the editor it's probably not chromium related

maxweisel•4/17/24, 2:57 AM

Normcore uses libwebrtc from chromium for our native plugin

NeuroGoblinOP•4/17/24, 2:58 AM

ah i see

NeuroGoblinOP•4/17/24, 3:01 AM

i gotta brb for a while but i'm using MacOS Monterey 12.7.1 if that helps

NeuroGoblinOP•4/17/24, 4:52 AM

my coworker on his mac m1 max was able to connect to realtime via a deployed webgl app