Slow Skype connections cause lag, video and audio interruptions, and general frustration on the part of the users. If you're experiencing a slow Skype connection using video, audio or file transfers, it may be caused by your internet connection or an issue with your computer itself. In addition, Skype lag may also be due to a problem on the end of the user you are connecting with.
Slow Internet Connection
A slow internet connection on either end of a Skype call slows down communication for both sides. Have both parties close any unnecessary programs running in the background, especially programs streaming audio or video. Check the minimum bandwidth requirements, at support.skype.com/en-us/FAQ/FA1417/How-much-bandwidth-does-Skype-need, to ensure both parties have the minimum connection required for the type of Skype call you are making.
Computer speed is also affected by your computer's performance settings. If you or the party you are calling is using a laptop, the laptop may go into a power-saving mode that affects your connection. To prevent the power saving mode from activating, plug the laptop into a power outlet or change its settings to maximum performance. Also, check the minimum system requirements, found at support.skype.com/en-us/FAQ/FA10328/What-are-the-system-requirements-for-running-Skype, to ensure your system supports Skype calling.
Restrictive firewalls between the computers of the connecting parties often results in the Skype connection being routed through a relay. Relays limit bandwidth, thereby affecting the quality of your Skype call. To find out if you are using a relayed connection follow the instructions for checking for relay connections, found at support.skype.com/en-us/FAQ/FA1544/How-do-I-check-if-my-connection-in-relayed-or-not.
If you're experiencing a slow file transfer through Skype, a few common issues may be causing the lag. A relayed connection or limited bandwidth greatly affects the speed of your file transfer. Also, if you are engaged in a Skype call while transferring files, Skype prioritizes the call to limit interruptions in your conversation. When you are finished with your Skype call, the file transfer will resume its normal speed.
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