Browser cache issues

Logging in to Jamk services uses the global Microsoft sign‑in portal. Since most users have, in addition to their Jamk Microsoft account, other Microsoft accounts such as a personal, workplace, or another educational institution’s account, the login may automatically proceed with the wrong credentials in Microsoft’s sign‑in portal, or conflicting user information may cause an error during sign‑in.

These issues can be worked around by using the browser’s private window for logging in. This feature is usually found in the menu at the top‑right corner of the browser. The name of the feature varies slightly depending on the browser:

  • Microsoft Edge: New InPrivate window
  • Google Chrome: New Incognito window
  • Mozilla Firefox: New Private window
  • Safari: New Private window (found in the File menu)

If using a private window does not resolve the issue, or you want to permanently fix the problem without always using a private window, clearing the browser cache is a common way to fix browser cache issues and login credential conflicts. Below are instructions for clearing the browser cache for each browser.

Clearing the browser cache

Open Edge’s main menu by selecting the three dots in the upper‑right corner and choose “Clear browsing data.”

Edge main navigation opened from tip right corner and option "Delete browsing data" is highlighted
Edge – Delete browsing data

If necessary, adjust the time range for the data you want to clear. The recommended option is to clear all history. If you have important saved sign‑in or form data in the browser, you do not necessarily need to remove those.

An image showing the detailed settings for clearing browsing data. At the top, you choose the time range for which the browsing data will be deleted. Below are the options for what you want to remove.”
Edge – Advanced settings for deleting browsing data

Finally, select “Clear now.”

An image of the Chrome browser’s main menu, opened from the top-right corner of the browser. The ‘Clear browsing data’ option is highlighted in the main menu.
Chrome – Delete browsing data

Open Chrome’s main menu by selecting the three dots in the upper‑right corner and choose “Clear browsing data.”

In the window that opens, make sure to select the appropriate time range. The recommended option is “All time” to remove all stored browsing data that may be causing issues.

If you have important saved passwords, sign‑in data, or form information, you do not necessarily need to clear those items — you can leave them unchecked.

An image showing the advanced settings for clearing browsing data in Chrome. The time range must be selected through the ‘More’ menu, and it is recommended to clear browsing data for the ‘All time’ range. Below are additional options that define which types of data will be removed.
Chrome – Advanced settings for deleting browsing data

Finally, click “Clear data.”

An image of the Firefox browser’s main menu opened from the top-right corner. The ‘History’ option is highlighted, and in its submenu the ‘Clear Recent History’ option is emphasized.
Firefox – Clear recent history

Open Firefox’s main menu by selecting the three horizontal lines in the upper‑right corner, then choose “History”, followed by “Clear Recent History…”.

In the window that opens, select the appropriate time range. The recommended option is “Everything” to remove all cached data that may be causing issues.

If you have important saved login or form information, you do not necessarily need to clear those items — you can leave them unchecked.

An image showing the detailed settings for clearing browsing data in Firefox. At the top, there is a dropdown menu where you can select the time range for which the browsing data will be cleared. Below are options that define which types of data will be removed.
Firefox – Advanced settings for clearing browsing data

Finally, click “Clear” to clear the selected data.

Open the “History” menu at the top of the screen and select “Clear History…”.

An image showing the Safari browser’s History menu opened, with the bottom option ‘Clear History’ highlighted.
Safari – Clear history

In the window that opens, choose the appropriate time range. The recommended option is “all history” to remove all cached data that may be causing login or browsing issues.

If you have important saved website data or preferences, you do not necessarily need to clear everything — you can adjust the selection based on what you want to keep.

An image showing a Safari browser prompt related to clearing history, where you must select the time period for which the history will be cleared. Below are the ‘Cancel’ and ‘Clear History’ buttons, allowing you to either cancel the action or confirm the clearing for the selected time period.
Safari – Advanced settings for clearing history

Finally, click “Clear History” to complete the process.