Speed

Edit.. sorry to jump in over conversation.. there were no replies when I started. Type too slow.

There isn't a single answer to your question.

I am guessing you mean WAN to LAN speed??

Even with that question there are multiple answers..

With Time Capsule (TC) setup as router, and we are talking about Gen4 or Gen5 model then I would expect 400Mbps.. up to maybe 450.. although I have seen higher figures.. the confusion can be caused by the setup.

On IPv4 then put a figure of 400Mbps and any extra is bonus.

But if your ISP supports IPv6 that is entirely different.. IPv6 does not use the NAT router required for IPv4 which is the major cause of slow downs.. and you can get close to the full speed of gigabit.

Of course in real world you will not have all sites using IPv6 so it will slow down again for any site using IPv4.

If you are talking LAN to LAN speed .. then it is a standard gigabit switch chip and you should get very close to gigabit.. usually a figure like 930Mbps. That is including overheads so when you work out MegaBytes from Megabits it will have 10% inefficiency due to packet overhead.. so 90-100MByte/s

I get 100 mbps.

Over ethernet means there is a broken pair in the cable between the TC. and the computer.

Or faulty ethernet port.

Test the computer up close to the TC with a short known good ethernet patch cable.. Cat6 or 5e.

If the Time Capsule is set up as your router, the maximum speed through Ethernet would be in the 325-350 Mbps range.

If the Time Capsule is not set up as your main router........meaning that it is in "Bridge Mode"........the speed of the Time Capsule might approach 500-600 Mbps.

If the connection from your Internet Service Provider (ISP) is less than this, then the Time Capsule will be limited to the speed that your provider is supplying to you.

To what device is the Time Capsule connected? The Android "box"?

If you disconnect the Time Capsule from the "box" and connect your computer directly to the box using an Ethernet cable, what speed do you see?

A defective Ethernet cable will allow a connection, but knock a 1,000 Mbps signal down to 100 Mbps, so check the Ethernet cable connections as well.