How do I change my email password?

You need to contact the Glenwood Help Desk at 866-756-4746 or 402-756-3131.

How do I find my public IP address?

Open a Web Browser and go to this URL: https://whatismyipaddress.com/

How do I set up my gtmc.net email?

Instructions for email setup are under the support tab at the top of the page.

What is FTTH?

Fiber to the home (FTTH) is the delivery of a communications signal over optical fiber from the operator’s switching equipment all the way to a home or business, thereby replacing existing copper infrastructure such as telephone wires and coaxial cable.

What is an ONT?

An ONT (optical network terminal) is an your connection to Glenwood. This device (a small black box) is placed in your business/office, in your home either inside or outside the building and serves as the termination point “D-Marc” for your connection. 

The ONT’s job is to convert the light pulses into electrical pulses – but why? Because your internal network runs on electricity, the ONT takes the light from Glenwoods fiber network lines and basically acts as a translator. 

In practical applications, all this means is that the fiber is terminated in the ONT (the fiber line actually attaches to the box itself) and you then connect your devices (firewalls, switches, additional routers, etc.) into the available ethernet ports on the other side of the ONT. 

ONTs can vary in features. They can either act as gateway devices and provide IP addresses to your devices, or they can bridge the connection between your provider and your network. 

Some ONTs also have wireless capabilities and act as an all-in-one solution for your home and business.

What is a router?

Typical Glenwood GPON connection to home:

When people talk about a “router” at someone’s home.
1) Examples Routers that Glenwood has are:
     -Calix GigaCenter
     -TP-link AC750 Dual Band WL Router
     -TP-link WR940N Wireless-N300 Router
     -Linksys E900 Wireless-N300 Router
     -Linksys E1200 Wireless-E300 Router
     -Linksys E92500 Wireless-N600 Router
     -Dlink Xtreme N Gigbit Router
These “router” devices do a lot of things!   They are a Router, Switch, Firewall, NAT box, and AP. 

1-A router is a networking device that forwards data packets between computer networks. Routers perform the traffic directing functions on the Internet. They are Layer 3 devices. They use IP addresses to connect/communicate. 

2-A network switch (Ethernet Switch) is a computer networking device that connects devices together on a computer network at Layer 2. They use the MAC address of devices to connect them. 

3-A firewall is a network security system that monitors and controls incoming and outgoing network trafficbased on predetermined security rules. A firewall typically establishes a barrier between a trusted internal network and untrusted external network, such as the Internet

4-Network address translation (NAT) is a method of remapping one IP address space into another by modifying network address information in IP header of packets while they are in transit across a traffic routing device. The internet has basically run out of IPv4 address space for use on the Internet. (IPv6 is the new wave) NAT is used to convert a “private” IP address to a “public” IP address. These Private IP address blocks à  can be used in a company’s local “internal” network, but they cannot be routed via the Internet, only Public IP address can be routed on the Internet. Thus a NAT device converts these for you and allows private address in a local-internal network. Example: Glenwood office uses private address192.168.46.x but our NAT device converts these to public IP addresses 

5-A wireless access point (WAP), or more generally just access point (AP), is a networking hardware device that allows a Wi-Fi devices (laptop, pda, tablet, computer, TV) to connect to a wired network. The AP usually connects to a router/switch (via a wired network), but it can also be an integral component of the router itself. An AP uses the “air” to transmit signals and does not use copper or fiber for example. The “air” can cause troubles because you can get too far away from the AP, and walls and other objects will affect the signal and thus the signal strength ends up too low to allow for valid communications. Wireless uses to frequency bands.  2.4 GHz  and 5 GHz. AP send out a SSID (service set identifier) messages that wireless devices can see and then know there is a Wi-Fi (wireless) network they can connect to. You will see different SSID on your device when you go to different places/locations. This can be an “open” wireless connection (NOT secured) or can have wireless encryption to protect the data from others seeing it. One will see a symbol  like this if it is a secure/safe connection! This typically requires a password the first time you connect. Then your device stores this for later connections to this Wi-Fi network. 


So the “router” is doing many of functions internally. These routers really do not have many issue’s to worry about other that the “wireless” signal that is being transmitted over the “air”.   

Things that can help?
→Adjust your antennas? (Probably not much help)
→Changing your router’s channel can help. What does this mean?
    →  A great tool for to see this is called “Wi-Fi Analyzer” by Matt Hafner.

On 5 Ghz we don’t see as may problems with channel interference as there are more Channels. CH 36, 40,44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128, 132, 136, 140, 149, 153, 157, 161 NOTE:  Higher frequencies “5Ghz” to not transmit signals as far as lower frequencies “2.4Ghz”. 

→One can use a tool to see what channel you are using and if there, are other ssid signals on that channel and if so you can move you router/AP channel to one other one via configuration settings.
    →  A great tool for to see this is called “Wi-Fi Analyzer” by Matt Hafner.
→Move your router to a location that is closer to where you use your Wi-Fi devices.       (not so easy to do as you may have to run CAT5e/CAT6 cables)
→Add more Wi-Fi devices-AP to increase you wireless coverage. (Probably the best solution)
→If Wireless Speeds seem to be the trouble. 

The best way to test this is to plug a computer into the ONT or router port with an Ethernet cable. This will prove if the problem is with wireless or wired 99% of the time.