HTTP unable to make connections

monitors went down showing "socket hang up" just now

87 Replies

might've been resolved on its own?


back green but still...


connection err closed something something when I tried to fetch my service's healthcheck endpoint


3 services were/are effected so far, no new deployments


a day ago

will look around


I just had it happen on railway.com as well


I'm in eu ams

affected services whose healthchecks failed externally


Seeing latency spikes


both screenshots are of services linked above

1780422081_YNsasalNLF.png

1780422087_flN8H3dakq.png


not seeing the socket hang up anymore but still seeing slight latency spikes


socket hang up again


a day ago

may I ask which ip/isp you're getting these from? can dm too


502 bad gateways, connection reset by peer


69.46.46.14:443: i/o timeout


a day ago

constantly, like right now?


upstream error

1780424834_Y8qVz8vCCK.png

Attachments


uhh not super constantly but quite consistent


a day ago

is there any response body?


upstream error


everything seems to be stable the last 30m, but might just be luck


a day ago

let me know if you see one in the next 5min or so


instability is back...


unexpected EOF


read tcp 172.18.0.8:33922->66.33.22.216:443: read: connection reset by peer


a day ago

ok, I know why you see this now


a day ago

wait what


a day ago

Oh I see, the origin/railway proxies (on the 66.33.22.0/24 prefix) were just deployed


a day ago

How aggressively are you monitoring those? Do you keep the connection open?


I don't think so, minutely checks


I'm trying to access the failing URLs from my browser, I get hit with a conn refused (or alike, browser autorefreshes) and afterwards it seems to work fine


a day ago

could you send me the failing URL in here/over DMs? (does it resolve to an address within 66.33.22.0/24)?


I'll send you the ones my monitors are annoying me about, do want to note that it's intermittent so far


pg
PRO

21 hours ago

seeing similar intermittent down behavior


21 hours ago

Hi @pg, could you let me know which domains you are experiencing that on?



pg
PRO

19 hours ago

happened again around 40 minutes ago


seeing timeouts, question mark


8 hours ago

do you know if its the 66.33.22 IPs or 69.46.46 IPs you're seeing timeouts on?


69.46.46.58


resolved ""itself"" as of now but

Screenshot_20260603-110259.png

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8 hours ago

ok, that would do it. bgp should reconverge

Screenshot_2026-06-03_at_18.03.54.png

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marw11n
PRO

8 hours ago

just got 5 minutes timeout then it fixed itself


8 hours ago

Let me know if you see anything else.


8 hours ago

Was this from a monitor out of interest? Is the monitor hitting the "ams1" POP? https:///.railway/cdn-trace


marw11n
PRO

8 hours ago

Yeah, it was a monitor hitting my own API. The entire app was running into a Cloudflare timeout error, but the Railway metrics were still showing everything as healthy and operating normally so idk what was that



69.46.46.58

1780479564_qfyzN65Ny7.png

Attachments


8 hours ago

Could you run a traceroute/mtr to that IP from the monitor's network/server if possible? 🙏


not consistent latency... mtr just shows ams eq6 right now, but ill keep retrying


some cloudflare proxied requests are timing out completely


7 hours ago

I'd like to see the hops you take before eq6


  2.|-- sre02.gs.core.blackgate.nl            0.0%    10    4.6   4.7   4.3   6.0   0.5
  3.|-- 100.65.1.14                           0.0%    10    4.3   5.0   3.8  11.2   2.2
  4.|-- 100.65.0.161                          0.0%    10    8.6   5.6   3.9   9.8   2.0
  5.|-- 81.20.68.161                          0.0%    10    4.6   5.8   4.5  10.0   1.8
  6.|-- ae-7.r23.amstnl07.nl.bb.gin.ntt.net   0.0%    10   84.0  85.5  83.4  90.8   2.5
  7.|-- ae-18.a01.amstnl07.nl.bb.gin.ntt.net  0.0%    10    8.6   7.4   4.7  14.1   3.1
  8.|-- 81.20.68.138                          0.0%    10    3.4   4.3   3.3  10.5   2.2
  9.|-- vl221.ams-eq6-dist-2.cdn77.com        0.0%    10    4.5   5.1   4.5   6.5   0.6
 10.|-- 69.46.46.70                           0.0%    10    4.9   5.0   4.3   7.6   0.9

7 hours ago

https://utilities-us-east.up.railway.app/raw

What is the x-railway-edge header you see here?


railway/europe-west4-drams3a



same edge val, cf-ray ending in -ams


7 hours ago

Ty


timing out for me



and... not anymore


7 hours ago

No timeouts on https://utilities-us-east.up.railway.app/raw right - just via Cloudflare?


timeouts only observed via cloudflare so far


latency spikes on non-cloudflare still a thing but my monitors havent tripped on them


cf-ray became lhr, then timed out the following refresh

(and once again I am able to fetch it fine..)


I'm assuming you disabled the ams pop

1780481793_DcsWTsj7ae.png

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7 hours ago

Nope it's still up, do you see that on the non-CF domain as well?


I do not

1780481846_PNytzo6MqF.png

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swag42dev
PRO

7 hours ago

image.png

railway/europe-west4-drams3a

Attachments


7 hours ago

I have a suspicion on what it could be. I'm going to disable something and we can see if that resolves it.


swag42dev

![image.png](https://station-server.railway.com/attachments/att_01kt6fsxgfexzbr9acmgmwzf9d) railway/europe-west4-drams3a

7 hours ago

Is your domain also proxied by Cloudflare?


phin

Is your domain also proxied by Cloudflare?

swag42dev
PRO

7 hours ago

no


7 hours ago

I've disabled something in AMS - let me know if you see improvement over the next half hour or so


swag42dev

no

7 hours ago

May I know the domain or service this is happening to?


phin

Is your domain also proxied by Cloudflare?

swag42dev
PRO

7 hours ago

Domain management is on CF, but this particular domain is not proxied.


still seeing these (or should I just wait a bit more)


7 hours ago

What latency is that tracking? ICMP or HTTP?



phin

May I know the domain or service this is happening to?

swag42dev
PRO

7 hours ago

project/b1f6fd55-ba7c-423a-8784-21ae43029bab/service/88da5b4b-99c2-4e7d-8946-b51c75496f9f


still going cf ams -> hikari lhr


non-proxied latency spikes still occurring


6 hours ago

Is there a specific domain this is occuring on or is it all of your domains?



swag42dev
PRO

5 hours ago

image.png

This is starting to affect other deployments.

The problem is becoming widespread.

Attachments


bodysplash
PRO

5 hours ago

Hey. 

Same here.

Using a VPN, we tested a few other edges.

In a nutshell, railway/europe-west4-drams3a is definitely troubles for us. us-west2 works fine as far as we can tell.


Monitors tripped over *.up.railway.app timeout


so it's no longer necessarily CF specific


I'm also seeing latency spikes from Singapore

(Singapore Railway service -> EU-W Railway service over pubnet)


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