Time Machine WIFI slows down and Fine after I unplug it?

Question

My Time Machine WIFI slows down to an absolute crawl and then after I unplug it and plug it back in, it's back to normal. Can someone help me?

Answer 1

My Time Machine WIFI slows down to an absolute crawl and then after I unplug it and plug it back in, it's back to normal.
This is a classic case of the effects of wireless interference from other networks around you. See the link at the bottom for more information about this.
It might first help to understand why things improve when you unplug the Time Capsule and then power it back up. When you do this, the Time Capsule will scan to find the best available wireless channels to use at the time.
Unfortunately, other wireless routers are doing the same thing all the time, so after a few hours or a day or two, the channel(s) that the Time Capsule was using become overcrowded and the wireless slows down to a crawl. Cordless phones can also create interference issues for a wireless network as well as any number of other electronic devices.
Unless you can convince other users around you to turn off their wireless routers, there is not much that you are going to be able to do to come up with a permanent fix. For now, locate the Time Capsule as far away from any outside walls in your home as possible and use the 5 GHz band for as many connections as you can.
A friend of mine who recently moved into a new apartment complex has the same problem. He has to restart his wireless router at least twice a day, sometimes more on the weekends.  Too many wireless networks.....not enough channels.
Wi-Fi and Bluetooth: Potential sources of wireless interference - Apple Support