Thank you for your reply. Yes, it's a Time Capsule. My WiFi Network is AT&T wireless with an AT&T router. Since I am only using the Time Capsule to backup my computer, the Time Capsule AirpPort utility is added to my AT&T WiFi Network (and not directly connected to the AT&T router.) Initially, it seemed that this setup increased my Wifi Network range, however lately it seems hard for me to connect unless I am close to the AT&T WiFi signal (in another room.) Therefore, my question: Does the Time Capsule extend the range of my wireless network? If I understand your explanation, the answer is NO. BTW: I cannot use the power wires in my home to send the network over the wires because it is an apartment.Huh? Bear with me, this topic is a bit difficult so follow along... it requires some explaining.
Do you mean you added a Time Capsule? Time Capsule (TC) is a WiFi router that has storage that can be used for Time Machine.
Yes, TC can extend your WiFi network, but it cannot run in router mode which is the default configuration, you end up with a double NAT situation and it wreaks all kinds of havoc on your network.
So, "extend" is a term that can be confusing. In Apple terminology, it means using a WiFi device, connected wirelessly to the WiFi router and then serving as a hotspot to allow connections from remote areas where the main router's WiFi is too weak. In network terminology, extending means using any means possible using hotspots to make the range of the network wider.
TC should not, and as I recall, cannot be used to extend the network in Apple's terminology sense. That role is typically reserved for Airport Express. But, TC can help expand the range of the network if it connects to the main router via Ethernet.
On the TC itself, it needs the Network tab Network Mode set to Bridged Mode. This turns off routing functionality, then makes the WAN Ethernet port a simple LAN connection to the main router. Any connections with the TC (wired or wireless) will simply be passed to the main router for redirecting to the internet or other hosts on the local network. On the Wireless Tab, the network mode would be set to "Create a Wireless Network" (doing this from memory so terms may not be exact). You then have the choice of putting the same WiFi SSID (network name) and Password\security settings as the main router WiFi, or a different wireless SSID\password. Now, you can connect to the network using whichever device (TC or Router) is stronger, and roam to the next device as needed.
I have found that it works reasonably well, but not ideal. On occasion, I have had to toggle WiFi on\off when the internet became unreachable. This may be a router issue, I never really investigated it.
Now, as I said, it must be Wired to the router. So two WiFi "Access Points" (any WiFi hotspot device) that are too close to each other will often create over saturation. So you want them far enough apart so the signal from each other is very weak or non-existent at the location of the other device.
If a wired Ethernet connection is a problem, you can use power line adapters to send the network traffic over the power wires in your home. The setup would be: Router <ethernet cable> Powerline Adapter 1 <house wiring> Powerline Adapter 2 <ethernet cable> TC WAN port. TP Link, Netgear, and others make respectable power line adapters.
Start with an Amazon search for AV2000 which will bring up the TPLink product, but others will appear in the related section of the page. Note, there is a TPLink AV1300 (a little slower data rate over the house wires, but likely more than enough unless you have 1Gbps ISP service) that has a WiFi hotspot on the remote end. It works quite well, and if all you need at the far end is WiFi coverage (no wired connections), it might be a better bet than using TC on the remote end. In this case, just leave WiFi off on the TC and use it for central storage.
Again, from the Apple definition, no it cannot "Extend" (wirelessly connect to the router and create a hotspot), but it can create a "Roaming" network (wired connection to router + hotspot).Does the Time Capsule extend the range of my wireless network? If I understand your explanation, the answer is NO. BTW: I cannot use the power wires in my home to send the network over the wires because it is an apartment.
Yes, every time I try to survey the WiFi for the best channel, the AT&T process indicates that all of them are “poor”.Because you're in an apartment, there are probably lots of other wi-di routers nearby. This may cause interference, resulting in poor range/connection/performance. Rebooting the router and/or the TC may enable it to find frequencies that are not used (or weak) and configure for those.
And that is why WiFi in densely populated areas basically just sucks. No matter what measures you take to tweak channels, there will be interference from neighbors. Your best bet is to use wired connections whenever possible to reduce the congestion on the WiFi radios.Yes, every time I try to survey the WiFi for the best channel, the AT&T process indicates that all of them are “poor”.
Thank you very much for your thorough explanations. I appreciate them.And that is why WiFi in densely populated areas basically just sucks. No matter what measures you take to tweak channels, there will be interference from neighbors. Your best bet is to use wired connections whenever possible to reduce the congestion on the WiFi radios.
802.11ax (WiFi 6) is just now hitting the market and should help. It implements a priority flag that enables the radios to quickly inspect packets, and drop them immediately instead of having to do a deeper inspection to see if they are intended for, or coming from hosts on that network. And, it should have longer range and faster speeds as well.
The problem with WiFi is basically an amplification of what was a problem with wired networks in the early days, collisions and congestion. Along came switches which manage traffic to reduce collisions and congestion. Any signal in the air that hits a WiFi access point or client has had to be processed to determine if it is to or from an authenticated host. So, every packet on a neighbor's network on the same frequency as yours will hit all the WiFi devices on your network, and they all have to try to sort out if it is to be processed. That will be better, but not completely solved by WiFi6.