@jkwong32 , its been a while since we've seen any complaints about the port speeds of the 4582. Those ports will automatically negotiate the fastest data rate possible, depending on the port that is connected to the modem, and depending on the condition of the connecting cabling and ports themselves. You can't set the port speeds manually
What firmware do you have loaded, as seen on the STATUS page? If you have version 7.2.4.7.1b4, there is a chance that its a recent firmware update. I'd reboot the modem to see if there is any change in the port speeds.
Were the ports running at 1 Gb/s previously?
How are you connecting to the access points? Thru commercial cabling or house cabling? That leads back to the question of whether or not those ports were running at 1 Gb/s previously. I'm wondering about the possibility of a firmware update, or, potential damage to the cabling or to the ports themselves.
Do you happen to have anything else with a gigabit port on it that you can use as a test device. All you have to do is connect the device when its running and you should see an amber flashing LED beside the modems's connected port, and a green flashing LED on the device. Keep in mind, the port LED colours on the Hitron modems are backwards from the industry standard LED colours. So a flashing amber LED indicates 1 Gb/s receive / transmit while a green flashing LED indicates either 10 Mb/s or 100 Mb/s receive / transmit rate. A steady amber or green LED indicates that the modem port is connected at 1 Gb/s (amber) or 10/100 Mb/s (green) but, there is not data being transmitted or received.
Food for thought, if those ports have been connected for months or years, unplug the connector and plug it back in. I'd do that more than once in order to get rid of any oxidation on the port or connector exposed copper components. Sometimes, just doing that will resolve connector issues.
@jkwong32 if you haven't tested the house ethernet cabling yourself, don't assume that the ethernet wire pair to connector pin assignments in the wallplates have been done correctly, or that the cabling is configured for 1 Gb/s operation. Its possible that the wire pair to connector pin assignments have been made for 100 Mb/s operation, which only uses two out of the four wire pairs that are found in an ethernet cable.
If you pulled one of the wall plates off of the wall and had a look at the back of the connector, a simple visual inspection would tell you if only two of the four wire pairs are used for the ethernet cabling. Two of those pairs would be cut or pulled back along the ethernet cable, while the other two would be used for 100 Mb/s operation.
To test the cabling, end to end, for all of the house ethernet cabling, you need an ethernet tester, which looks like this:
Here's a cheaper version which is part of an ethernet cable installation/repair kit:
https://www.amazon.ca/gp/product/B07W88S9RG/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
With one of those on hand, you can test the ethernet cabling end to end, and identify the cable ends in the basement, if they aren't marked in some fashion. I'm assuming that the house has a Structured Wiring Cabinet in the basement where all of the house ethernet, telephone, and RG-6 cabling terminates.
A network tester would allow you to determine if the wire pair to connector pin assignments are correct and what the cabling is connected for, 1 Gb/s or 100 Mb/s operation.
I'd be interested in knowing what you find if you inspected the wallplates. If you find that only two of the four wire pairs are connected to the ethernet ports, its not a terribly difficult task to cut off the old ethernet port connector, strip back the cable cover and punch down all four wire pairs onto a new connector. You should do that for all of the wallplates in the home where an ethernet port is located.
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