Login - Refused to Connect

1. This error can happen when a student/faculty is logged into the VLE and attempt to launch their Virtual Machine to access the VM. The issue is that the student/faculty have 2 sets or more of cached credentials logged into their browser and Microsoft is unsure on which one to use. 

2. This will happen in all major browsers if you have cached credentials for 2 different accounts. There are two ways to resolve this issue. 

a. You can clear all your browser cache and history, ensure that you have completely closed out of the browser, please check task manager that there is not a background browser process still running, then relaunch your browser. If done correctly, you should no longer have 2 different accounts cached in your browser. When you click launch in the online classroom or student/faculty experience, you should be prompted for credentials and able to log in using your UMGC SSO Account. 

b. Depending on the browser that you are using, you can use Incognito / InPrivate / Private modes and how to allow 3rd-party cookies while using those modes.

Google Chrome (Incognito)

Open Incognito

• Windows/Linux: Ctrl + Shift + N

• Mac: Cmd + Shift + N

• Or menu ⋮ → New Incognito window

Enable 3rd-Party Cookies (for Incognito)

1. Open Incognito window

2. Go to:

   chrome://settings/cookies
   

3. Select Allow third-party cookies

   • OR choose Block third-party cookies in Incognito → OFF

4. (Optional – safer)

   • Under Sites that can always use cookies

   • Add your site

   • Check Including third-party cookies

⚠️ Chrome blocks 3rd-party cookies by default in Incognito

Microsoft Edge (InPrivate)

Open InPrivate

• Windows: Ctrl + Shift + N

• Mac: Cmd + Shift + N

• Or menu ⋯ → New InPrivate window

Enable 3rd-Party Cookies (for InPrivate)

1. Open InPrivate window

2. Go to:

   edge://settings/content/cookies
   

3. Turn OFF:

   • ❌ Block third-party cookies

4. (Optional – recommended)

   • Under Allow

   • Add the site domain

⚠️ Edge also blocks 3rd-party cookies by default in InPrivate

Mozilla Firefox (Private Browsing)

Open Private Window

• Windows/Linux: Ctrl + Shift + P

• Mac: Cmd + Shift + P

• Or menu ☰ → New Private Window

Enable 3rd-Party Cookies (Private Mode)

1. Open Private window

2. Go to:

   about:preferences#privacy
   

3. Under Enhanced Tracking Protection

   • Choose Custom

4. Set:

   • Cookies: All cookies

   • OR Cross-site tracking cookies (less permissive)

5. Reload the site

💡 Firefox does not fully disable cookies in Private, but tracking protection often breaks SSO/LTI flows.

Safari (macOS & iOS – Private)

Open Private Window

• macOS:

  • Menu File → New Private Window

• iOS:

  • Tabs → Private

Enable 3rd-Party Cookies (Safari-wide)

Safari does NOT allow exceptions per Private window.

1. Open Safari Settings

2. Go to Privacy

3. UNCHECK:

   • ❌ Prevent cross-site tracking

   • ❌ Block all cookies

4. Close & reopen Private window

⚠️ Safari is the most restrictive browser for 3rd-party cookies
⚠️ Some 3rd-party cookies cannot be enabled at all due to ITP

You can then access the VLE with your new browser settings.