The short answer
Reload, try another network or browser, and switch off extensions. If it still fails, send us the page address, what you saw, your device and browser, and a screenshot.
Fix a slow or blank page
1Reload the page
On a phone, close the tab and reopen it.
2Change network
Switch between Wi-Fi and mobile data.
3Change browser
Or open a private window.
4Tell us what you saw
Send the page address and a screenshot.
Most slow or blank pages are fixed by the first few steps.
- Reload the page. On a phone, close the tab and open it again.
- Try another network: switch between Wi-Fi and mobile data.
- Try another browser, or a private window.
- Turn off browser extensions (ad blockers and script blockers are the usual cause).
- Update your browser.
- Sign out and sign in again if only your portal is affected.
If it still does not work
Send us a request with:
- the page address (copy it from the address bar)
- what you saw: a message, a blank page, or a spinner that never stops
- your device and browser, for example "iPhone, Safari"
- the time it happened and your country
- a screenshot, if you can take one
The more you tell us, the faster we can find the cause. Do not send your password or any card numbers.
What to send us
Page address
From the address bar
What you saw
Message, blank or spinner
Device and browser
For example iPhone, Safari
Updated 22 October 2026
Related questions
- Which browsers and devices work?An up-to-date Chrome, Edge, Firefox or Safari, on a computer, tablet or phone. Keep cookies switched on so you stay signed in.
- A video will not playIf the player keeps loading, your network is probably blocking YouTube: try another network or your phone's data. If the player shows an error, use Open it on YouTube.
- How do I talk to a person?Ask the AI assistant first. If it cannot help, choose Talk to a person to send a request. You can also email info@wartens.com or call. Replies usually come within one working day.
- Can I learn on my phone?Yes. Lessons, notes, quizzes, your portal and the checkout all work on a phone. Course software such as TIA Portal installs on a Windows computer, so do those practical steps there.
- Our emails are going to spamSearch your spam, junk and promotions folders for EDWartens and mark our email as Not spam. Adding the sender to your contacts helps.
- How big can an uploaded file be?It depends on where you upload: a CV or resume up to 10 MB, a profile photo up to 5 MB, a portfolio picture up to 8 MB, and internship or job simulation hand-ins up to 25 MB per file.
Still need help? Visit the Help Centre or send us a request.
Still stuck?
Ask the AI assistant. If it cannot solve it, a person takes over and replies by email, usually within one working day.