NREUM during login

[Zaki Alam]

We are trying to login to our instance. Since yesterday, we got the following error and cannot log in to Jira. It keeps looping through and throwing the following console error. How can we resolve this?

Uncaught ReferenceError: NREUM is not defined
at index.138b1074.js:1:162
(anonymous) @ index.138b1074.js:1

POST https://o55978.ingest.us.sentry.io/api/5988874/envelope/?sentry_key=db392c0dd39c43f9a29a56dbf6db9fc0&sentry_version=7&sentry_client=sentry.javascript.browser%2F7.120.3 net::ERR_BLOCKED_BY_CLIENT
(anonymous) @ index.602d5de6.js:77
(anonymous) @ index.602d5de6.js:75
add @ index.602d5de6.js:75
o @ index.602d5de6.js:75
_sendEnvelope @ index.602d5de6.js:75
sendEvent @ index.602d5de6.js:73
(anonymous) @ index.602d5de6.js:74
(anonymous) @ index.602d5de6.js:5
(anonymous) @ index.602d5de6.js:5
_executeHandlers @ index.602d5de6.js:5
(anonymous) @ index.602d5de6.js:5
s @ index.602d5de6.js:5
then @ index.602d5de6.js:5
_processEvent @ index.602d5de6.js:74
_captureEvent @ index.602d5de6.js:74
(anonymous) @ index.602d5de6.js:73
(anonymous) @ index.602d5de6.js:5
(anonymous) @ index.602d5de6.js:5
_executeHandlers @ index.602d5de6.js:5
(anonymous) @ index.602d5de6.js:5
s @ index.602d5de6.js:5
then @ index.602d5de6.js:5
captureMessage @ index.602d5de6.js:73
captureMessage @ index.602d5de6.js:5
captureMessage @ index.602d5de6.js:2
c @ index.602d5de6.js:2
(anonymous) @ index.602d5de6.js:2
withScope @ index.602d5de6.js:2
p @ index.602d5de6.js:2
n @ index.602d5de6.js:2
E @ join.acd774c3.js:1
o3 @ index.602d5de6.js:1
c @ index.602d5de6.js:1
iB @ index.602d5de6.js:1
iD @ index.602d5de6.js:1
(anonymous) @ index.602d5de6.js:1
v @ index.602d5de6.js:1
oe @ index.602d5de6.js:1
on @ index.602d5de6.js:1
or @ index.602d5de6.js:1
iO @ index.602d5de6.js:1
enqueueSetState @ index.602d5de6.js:1
J.setState @ index.602d5de6.js:1
t @ index.602d5de6.js:66
(anonymous) @ index.602d5de6.js:66
Promise.then
r._loadModule @ index.602d5de6.js:66
r.componentWillMount @ index.602d5de6.js:66
oC @ index.602d5de6.js:1
aL @ index.602d5de6.js:1
c @ index.602d5de6.js:1
iB @ index.602d5de6.js:1
iD @ index.602d5de6.js:1
(anonymous) @ index.602d5de6.js:1
v @ index.602d5de6.js:1
oe @ index.602d5de6.js:1
on @ index.602d5de6.js:1
or @ index.602d5de6.js:1
iO @ index.602d5de6.js:1
am @ index.602d5de6.js:1
(anonymous) @ index.602d5de6.js:62
await in (anonymous)
(anonymous) @ index.602d5de6.js:62
aQ @ index.602d5de6.js:1
i$ @ index.602d5de6.js:1
v @ index.602d5de6.js:1
oe @ index.602d5de6.js:1
iK @ index.602d5de6.js:1
_ @ index.602d5de6.js:1
eo @ index.602d5de6.js:1
V.port1.onmessage @ index.602d5de6.js:1
postMessage
_ @ index.602d5de6.js:1
y @ index.602d5de6.js:1
ot @ index.602d5de6.js:1
iA @ index.602d5de6.js:1
iO @ index.602d5de6.js:1
am @ index.602d5de6.js:1
(anonymous) @ index.602d5de6.js:66
Promise.then
(anonymous) @ index.602d5de6.js:66
aQ @ index.602d5de6.js:1
i$ @ index.602d5de6.js:1
v @ index.602d5de6.js:1
oe @ index.602d5de6.js:1
iK @ index.602d5de6.js:1
_ @ index.602d5de6.js:1
eo @ index.602d5de6.js:1
V.port1.onmessage @ index.602d5de6.js:1
postMessage
_ @ index.602d5de6.js:1
y @ index.602d5de6.js:1
ot @ index.602d5de6.js:1
iA @ index.602d5de6.js:1
iO @ index.602d5de6.js:1
am @ index.602d5de6.js:1
(anonymous) @ index.602d5de6.js:39
Promise.then
(anonymous) @ index.602d5de6.js:39
aQ @ index.602d5de6.js:1
i$ @ index.602d5de6.js:1
v @ index.602d5de6.js:1
oe @ index.602d5de6.js:1
iK @ index.602d5de6.js:1
_ @ index.602d5de6.js:1
eo @ index.602d5de6.js:1
V.port1.onmessage @ index.602d5de6.js:1
postMessage
_ @ index.602d5de6.js:1
y @ index.602d5de6.js:1
ot @ index.602d5de6.js:1
iA @ index.602d5de6.js:1
iO @ index.602d5de6.js:1
enqueueSetState @ index.602d5de6.js:1
J.setState @ index.602d5de6.js:1
setUserLanguage @ index.602d5de6.js:87
await in setUserLanguage
componentDidMount @ index.602d5de6.js:87
(anonymous) @ index.602d5de6.js:1
iH @ index.602d5de6.js:1
v @ index.602d5de6.js:1
oe @ index.602d5de6.js:1
iG @ index.602d5de6.js:1
iD @ index.602d5de6.js:1
iO @ index.602d5de6.js:1
sn @ index.602d5de6.js:1
(anonymous) @ index.602d5de6.js:1
iM @ index.602d5de6.js:1
sl @ index.602d5de6.js:1
t.render @ index.602d5de6.js:1
(anonymous) @ index.602d5de6.js:87

[Artem Nek]

Hard to say for certain from the console alone, but both errors point the same
way — at the client side, not Atlassian.

net::ERR_BLOCKED_BY_CLIENT only happens when something on your end blocks a
request (an ad blocker / privacy extension, or a network filter), never from
the server. And "NREUM is not defined" means New Relic's script didn't load —
same story. So it looks like a blocker is cutting Atlassian's telemetry
(New Relic + Sentry), and the login code may be tripping over the missing
NREUM.

Fastest way to confirm: open your Jira URL in an Incognito window (extensions
off by default), or a browser with no extensions.
• If login works there → an ad blocker is the cause; disable it for your
*.atlassian.net site or allowlist it.
• If it still loops there → it's likely network-level (corporate firewall /
proxy / DNS filter), so IT would need to allowlist the Atlassian domains.

Worth clearing cache + cookies for the site too. The incognito test should
tell
you which way it is in 30 seconds.

Best,
Artem

[Zaki Alam]

@Artem Nek 

I have tried on multiple browser and on the mobile app. We cleared cache.

I tried in incognito mode. Same behavior.

After some time we get the following:

We have multiple users, on multiple locations getting the same error. In my opinion, it has to be something on the Atlassian side. Not on the client side.

Regards,

Zaki