Comcast Corp. on Tuesday announced upgrades to its Internet service that will affect its customers in the Northern Tier of Pennsylvania and the Southern Tier of New York.

Comcast is doubling the speeds of two of its Internet speed tiers at no additional cost for its customers, according to a press release that the company issued on Tuesday. In addition, Camcast is beginning to launch a new "ultra-fast" Internet speed tier called Xfinity Platinum Internet, the release said.

Comcast's Xfinity Blast! customers will now get download speeds of up to 50 Mbps (formerly 25 Mbps), and Extreme 50 customers will now receive speeds of up to 105 Mbps (formerly 50 Mbps), according to the press release. This is the seventh time since Comcast launched Internet services in 2002 that the company has increased speeds for its customers.

The increase will be completed by Friday, July 25 in time for the Olympics opening ceremonies and for customers to stream the more than 3500 hours of Olympic coverage available online and through mobile apps, the company said.

To access the increased speeds, customers will simply need to reboot their modems, the press release said. Some customers with an older modem might need to upgrade to a DOCSIS 3.0-capable modem. These customers can visit where they can see the list of devices that are not compatible with the higher speed tiers. Comcast will also be reaching out directly to customers who need a new modem in the coming weeks to discuss next steps with them.

To reboot your modem, use a little switch at the back of the modem to turn off the modem for 15 seconds, and then turn it on again, said Jennifer Bilotta, a spokesperson for Comcast. Alternatively, you can reboot your modem by unplugging it for 15 seconds and then plugging it back in again, she said.

"More customers are simultaneously connecting to the Internet through tablets, laptops and smartphones within their homes. Whether it's to stream movies, upload photos, video chat with family and friends, or catch all of the Olympics action live on their tablets and connected devices, we want to ensure these consumers are getting the speeds they need," said Cathy Avgiris, executive vice president and general manager, Data and Communications Services at Comcast. "We will continue to increase speeds as customer demands evolve. Comcast is committed to providing our customers with even more choices to get the best, fastest and most reliable experience possible."

Xfinity Platinum Internet offers the most-advanced digital homes download speeds of up to 305 Mbps and upload speeds of up to 65 Mbps. These customers will also receive at no additional charge: Xfinity Signature Support (a $9.95/month value), providing customers 24/7 tech support from experienced and knowledgeable specialists; a wireless gateway to create a fast, efficient and secure home network; a dedicated Personal Communications Consultant to support their high-speed Internet needs; and the Constant Guard™ Security Suite, the most comprehensive online protection services available from any major ISP.

"With the launch of Xfinity Platinum Internet, Comcast continues to be a leader when it comes to delivering the fastest broadband speeds in the U.S.," Avgiris added.

James Loewenstein can be reached at (570) 265-1633; or email: