A customer service representative tells CNET the company's servers have been down since about 10 a.m. PT and may not be back up for several hours.
The cable giant's services went down in a number of areas across the US, but by midmorning Wednesday all seemed to be back to normal.
Disruption in nearly every geographical zone is preventing customers from viewing some content on Netflix.
Users report experiencing several-hour blackouts on the social network after sectarian riots left two people dead and 14 injured. Facebook says it can't find any technical issues on its end.
"Something went wrong," a message on the social network told would-be visitors. "We resolved the issue quickly," the company says.
The problem with the subscription service, which blocked updates, purchases, and in some case use of Adobe's software, is fixed, and Adobe apologizes.
After 24 hours of trouble with its subscription plan, including people being locked out of software, Adobe says it's fixing it.
Virgin Mobile has been forced to apologise to its customers after a network outage knocked out its voice, data and SMS services.
A site that houses more than 1.4 million bitcoin wallets has been down for more than 16 hours, but says users still have control over their virtual money.
After Google chat services go down for many users for about three hours, some find they actually have to talk to people in person.