Lloyds and Halifax online banking is down with reports of thousands complaining they are experiencing issues.
Many are having difficulty logging into the Lloyds website and the app, with some being told the 'server connection has failed' or saying the 'website can't be reached'.
According to Downdetector, more than 3,000 are experiencing problems with Halifax - a subsidiary of Lloyds Banking Group - and at least 2,000 have reported problems with Lloyds Bank in the last 24 hours.
Frustrated customers have also taken to social media to vent about their problems.
One said: "The whole online system is down for Halifax. Can't access the website at all.
"And the app keeps failing. What's going on?"
Lloyds Banking Group has apologised to customers and said they are working to get internet banking back to normal soon.
Are you experiencing problems? Email webnews@mirror.co.uk
One fed up customer wrote on Twitter: "Trying to pay bills but @LloydsBank app is down. Again."
Another tweeted Lloyds saying: "Your website is down and so is the app, when are you fixing this?"
One urged: "Please give some timelines, so it can set our expectations."
Clare McConnell told Mirror Online she was also experiencing problems with Lloyds online services and at 7.45pm said her server had been down for more than an hour.

Complaints included needing to access accounts 'asap' and 'having bills to pay' as people appeared to be losing patience.
One woman said: "I've been trying to transfer money from lunch time and still can't access accounts to transfer now I'll be charged."
An angry customer said: "My other half is sending me money to pay my credit card this month.
"It’s due today but your site is down. Perhaps you’d like to pay my late payment fees? Thanks Halifax."
Another wrote: "Sods law it happens on the evening I wanted to do some budget planning for the rest of the month! Sort it out please."
Lloyds Bank has tweeted one customer saying: "We're aware some customers are experiencing issues when logging into Internet banking and our Mobile App.
"We’re sorry for this and also for the impact to your Twitter.
"Enjoy your lovely cup of tea and in the meantime, we're working to have it all back to normal soon."
Some seemed to be more patient than others, with one tweeting Lloyds to say: "Just because everyone is moaning about mobile/online banking being down. Here is a nice tweet saying thanks for being the best bank."
A Lloyds Banking Group Spokesperson told Mirror Online: "We know our customers are having issues with internet banking.
"We're sorry about this and we're working to have it back to normal soon."