CNREL (mobile) login request not handled correctly

[grasscutters]

CNREL (mobile) login request not handled correctly

[4Benj]

Can you tell if the network request is going to grasscutter or the official servers?

[MlgmXyysd]

Can you tell if the network request is going to grasscutter or the official servers?

I think all requests are redirected to Grasscutter https://github.com/Grasscutters/Grasscutter/blob/stable/proxy.py#L54

[4Benj]

Add this Grasscutter.getLogger().info(body); at around 215 in emu.grasscutter.server.dispatch.DispatchServer
You should see what information is being sent to the server (If it's being sent at all).

[memetrollsXD]

CN uses slightly different subdomains

[MlgmXyysd]

Add this Grasscutter.getLogger().info(body); at around 215 in emu.grasscutter.server.dispatch.DispatchServer You should see what information is being sent to the server (If it's being sent at all).

Now I can see the login request and logged in, so the problem turned to 4206 error code.

[MlgmXyysd]

PC (local) works well, iOS (LAN with WiFi proxy) not work

[KingRainbow44]

make sure your dispatch server ip and game server IP arent 127.0.0.1 but are your computer's local IP (usually like 192.168.1.x)

[MlgmXyysd]

make sure your dispatch server ip and game server IP arent 127.0.0.1 but are your computer's local IP (usually like 192.168.1.x)

That's unlikely. But I can connect to the remote server on PC client, why?

[KingRainbow44]

assuming you have the downloading resource error, this comes from the client not being able to ping the game server (the server on UDP). this is because the game server IP in the grasscutter config is usually 127.0.0.1. the IP you provide in the config for the game server is what is sent in the region query. if the IP in the region query is 127.0.0.1, external devices cannot connect.

[KingRainbow44]

this is quite the common error, so ill be adding this to the troubleshooting wiki soon
also let me know if this fixes your issue

[MlgmXyysd]

assuming you have the downloading resource error, this comes from the client not being able to ping the game server (the server on UDP). this is because the game server IP in the grasscutter config is usually 127.0.0.1. the IP you provide in the config for the game server is what is sent in the region query. if the IP in the region query is 127.0.0.1, external devices cannot connect.

Got it now, I need to change the address to a LAN accessible one in config.json, right?

[KingRainbow44]

yep

[MlgmXyysd]

yep

One more question, what if I want to open it on the Public Internet (WAN)?

[MlgmXyysd]

yep

sadly, tried both GameServerIp & GameServerPublicIp, still not work

[lilmayofuksu]

listening on 127.0.0.1 (gameserverip) will probably reject any connections other than the localhost
try setting both of the ip sections to your lan ip

[lilmayofuksu]

yep

sadly, tried both GameServerIp & GameServerPublicIp, still not work

also this is extremely weird, i'll have a look at this

[MlgmXyysd]

listening on 127.0.0.1 (gameserverip) will probably reject any connections other than the localhost try setting both of the ip sections to your lan ip

already tried

[lilmayofuksu]

yep

sadly, tried both GameServerIp & GameServerPublicIp, still not work

can you also show your dispatch ip's in this scenario?

[MlgmXyysd]

can you also show your dispatch ip's in this scenario?

1. DispatchIp: "127.0.0.1" & DispatchPublicIp: "" & GameServerIp: "127.0.0.1" & GameServerPublicIp: "" -> 4206
2. DispatchIp: "127.0.0.1" & DispatchPublicIp: "" & GameServerIp: "192.168.1.100" & GameServerPublicIp: "" -> 4206
3. DispatchIp: "127.0.0.1" & DispatchPublicIp: "" & GameServerIp: "127.0.0.1" & GameServerPublicIp: "192.168.1.100" -> 4206
4. DispatchIp: "127.0.0.1" & DispatchPublicIp: "192.168.1.100" & GameServerIp: "127.0.0.1" & GameServerPublicIp: "" -> 4206
5. DispatchIp: "127.0.0.1" & DispatchPublicIp: "192.168.1.100" & GameServerIp: "127.0.0.1" & GameServerPublicIp: "192.168.1.100" -> 4206
6. DispatchIp: "127.0.0.1" & DispatchPublicIp: "192.168.1.100" & GameServerIp: "192.168.1.100" & GameServerPublicIp: "" -> 4206
7. DispatchIp: "192.168.1.100" -> mitmproxy error: 127.0.0.1:443 server refused

[lilmayofuksu]

DispatchIp: "192.168.1.100" & GameServerIp: "192.168.1.100" with public ip's empty, have you tried this?

[MlgmXyysd]

Proxy will always error if DispatchIp is not 127.0.0.1

[lilmayofuksu]

i think the proxy errors out because genshin tries to query the dispatch ip that it receives, and in that case that would be 127.0.0.1

[lilmayofuksu]

if you listen on 127.0.0.1 (on ip's that are not public), then no other device can connect to your server

[lilmayofuksu]

the public ip section just changes the ip's that are sent to the client

[MlgmXyysd]

if you listen on 127.0.0.1 (on ip's that are not public), then no other device can connect to your server

but if I listen on other ip, localhost can't connect🤔

[lilmayofuksu]

that's also weird, this whole thing is very weird

[MlgmXyysd]

Fixed #78