Unable to Access ServiceNow Instance – 502 Bad Gateway (snow_adc)

[MACHARLASAG]

Hi Team,

I am currently unable to access my ServiceNow instance. Whenever I try to open the instance URL, I receive the following error:

Error: 502 Bad Gateway
Message: snow_adc

In some cases, I also see a message saying "We are having trouble opening your instance due to an internal error."

I have tried refreshing the page, clearing cache, using different browsers, and different networks, but the issue still persists.

Could you please confirm if this is a platform-side issue and suggest how to resolve it?

Thanks in advance for your support.

[Mark Manders · Accepted solution]

If this is a customer instance, contact NowSupport.

If it is your PDI: these are unsupported. I am able to use mine at the moment. 

Try to refresh the instance from the developer site or release it and ask for a new one.

[Tanushree Maiti]

Hi @MACHARLASAG 

My PDI is working fine. Wait for some time . at least 24 hours.

If still it is not working Release the instance and request for new instance.

There is no support available for PDI.

Meanwhile , please try to login in incognito window/InPrivate browser.

[GlideFather]

Hi @MACHARLASAG,

this happens here and there, I explained what to do in my pearlier post:

[GF#5] PDI in Offline state: Resolving Error 502 Bad Gateway

I believe it will answer your question