WHATSAPP users were left unable to send messages for two hours on Tuesday after a mysterious outage.
The Down Detector site experienced a huge spike in reports just after 8am UK time.
Confused users flocked to Twitter to find out what was going on, causing the subject to trend.
Affected users said the app simply showed “Connecting…” at the top.
And any attempt to send a message wouldn’t go through.
They were left with either one tick or a clock icon, rather than the two ticks which mean a message has successfully been sent.
Almost two hours after the issue first emerged it looks like service is now back up and running.
At the time, WhatsApp owner Meta has acknowledged the problem, telling The Sun: “We’re aware that some people are currently having trouble sending messages and we’re working to restore WhatsApp for everyone as quickly as possible.”
One frustrated user tweeted: “Whatsapp down for more than half an hr now.”
Another added: “WhatsApp is down again, and it seems I’ve lost my connectivity with my loved ones.
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“Just shows how much dependent we are on a single online text messenger.”
A third person commented: “Don’t blame your Wi-fi services, it’s WhatsApp only that is crashed!!!”
WhatsApp is hugely popular with more than 2billion users worldwide.
The app is owned by Mark Zuckerberg‘s Meta company, which also includes Facebook and Instagram.
Zuckerberg, 38, paid $19.3billion for it in February 2014.
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This post first appeared on Thesun.co.uk