Connectivity Troubleshooting for Constant Contact

Nick_S_0-1649879757753.pngCaught in a bad gateway. Nick_S_1-1649879757754.png


All right, I’ll stop riffin’ on pop songs and get to the point. Were you in the middle of a task and suddenly received an error message such as, “Bad Gateway: The proxy server received an invalid response from an upstream server?” Annoying, right? 


The last thing Constant Contact wants is to interrupt your workflow, so let’s consider some ways to avoid, or at least resolve, these types of issues. Take it away, nondescript-pop-singer-who-I-don’t-know-if-I-can-reference-without-legal-ramifications:


First off, make sure the browser you are using is compatible with Constant Contact. It is? Great! Moving along…


I forget to do this myself sometimes, but double check to make sure you have updated the operating system for your Mac OS or Windows PC.


Now, earlier we recommended you verify you are using a compatible web browser, and yet you’re still experiencing a technical issue. What gives? Hiccups can still arise with compatible browsers and the following troubleshooting steps can help identify them so you can get back to doing what you do best!


Try another browser. 

Click to see more

This isn’t to encourage you to give up your preferred browser, it’s just a step in investigating what might be causing you problems. If you find the issue does not persist in the new browser, that indicates the problem is (hopefully) localized to the previous browser.


If it is, consider disabling third party extensions or clearing your cache. Warning: When it comes to clearing cache, make sure you aren’t erasing your browsing history, saved passwords, or other site data! You'd just need to be clearing out the cached images and files on the browser.


@William_A's tip:

There are a number of elements that can affect website connectivity and accessibility on an individual basis. The most common culprits are typically incompatible browser extensions, problematic caching or cookies that need to be cleared, or interference from an ad/pop-up blocker, VPN, or other security software erroneously trying to block elements from our site from functioning as intended. Temporarily disabling these tools, and then refreshing our site can help narrow down the source of the issues. Testing to see if the issue occurs on other browsers, in Incognito/Private mode, on other devices, or even other networks can also help narrow down the source of the problem.

If you find that an ad/pop-up blocker, VPN, or other security programs you're running on your device / network seem to be blocking some of the site's functionalities, then we recommend safelisting the domains we use in those programs.


See if it's just the email. 

Click to see more

It's also worth seeing if a specific section of the site is acting slow. For example, if the rest of the site loads smoothly, but the email builder is particularly laggy, then it may have more to do with the amount of content in your email. Since the builder's drag-and-drop aspects and autosaving can use a significant amount of bandwidth, the more graphics and individually formatted text you have, the more processing will be required for it. Think of it in a similar vein to Photoshop or Blender.


With this in mind, we'd recommend seeing if you're able to work in the email builder as expected when working on a fresh, new, blank template. If so, then that can confirm your normal copied template may be getting a bit too large. Make sure to check out some of the following articles for best practices when it comes to email length, driving contacts to your site(s), and making emails easier to read.

Make sure to check out our main article on Connectivity Troubleshooting, to make sure you're checking the most common culprits (especially browser extensions and ad/pop-up blockers) for connectivity issues.


That covers the general troubleshooting advice we have, however it is important to note that unique, isolated incidents do occur where none of these steps will help! There might be a system-wide issue impacting everyone or a problem with your Internet Service Provider, such as a downed connection after a storm, etc. We recommend keeping an eye on for more information.


We hope this article was helpful in case the issue ever arises. If you need assistance with any of the above, feel free to post our on Get Help board.

Version history
Last update:
‎02-13-2024 03:32 PM
Updated by: