@sagaboi you can run a router with the modem either in Gateway or Bridge mode. Ideally the modem would be running in Bridge mode if you wanted to use the router as the network firewall and DHCP server. That's a normal configuration. If the modem is running in Gateway mode with the router running in full router mode what you have is a double NAT situation, first thru the modem, and then thru the router. That isn't ideal, especially if you have to run any port forwarding for applications or games. It will work with or without the router firewall up and running. The modem will act as the DHCP server for anything connected to it, including the WAN address for the router. The router will then take that address and use it as the base address for its connected devices if you don't override the routers LAN IP address range. If you adjust the routers LAN IP address range, as long as the address range for the router is beyond the IP address range for the modem, this will work. Now if you happen to have IPV6 up and running I believe this will work all the thru to the devices that are connected to the router but don't quote me on that on.
As for the router firewall, if you have it up and running you will have a walled off network within a network. There are arguments for and against, but, at the end of the day this will work. One exception will be if you are trying to reach a device which is connected to the router from a device that is connected to the modem. Its possible that you might see issues in reverse as well. I'm thinking specifically of a printer attached to the modem, and, you're trying to print from a device connected to the router. There should be traffic back and forth from the device to the printer, but, I suspect that the router firewall would stop the return traffic to the device. Once again, don't quote me on that one. A small test would confirm or contradict that theory.
As far as the router losing speed after the power outage, that would suggest to me that the CMTS also lost power but didn't return to its original state when it was powered back up. There is no logical reason for there to be a speed issue with the modem in Bridge mode. There have been issues with D-Link routers and the 4582, but I believe that was resolved months ago. So, there might be an issue afoot with the CMTS and 4582 (in Bridge mode) with certain routers connected. That would take a network engineer to look at the CMTS configuration and its files to determine if anything is amiss. Tech support wouldn't be able to do anything about this issue.
When you said that "After the outage was over, I had the problem of slow download speeds and slow internet browsing through the router but when I connected my pc directly to the CODA 4582 modem, the speed was normal (>300Mbps) and internet browsing was fast.", was that with the pc connected via ethernet to the router?
Can you log into the modem and:
1. confirm which Software (firmware) version is loaded, as indicated on the Status page. That page is displayed automatically when you log into the modem.
2. navigate to the STATUS .... DOCSIS WAN page, copy the downstream and upstream table (and everything in between) and paste it into a post. The copy and paste process with paste in the text contents of the table. Those tables are the cable signal levels and signl to noise ratios. I'm just wondering at this point if there are any signal issues on the go.
Edit: I've sent a request to @RogersDave to have a look at this. He's a Network Architect with Rogers who can address this issue at some point. It won't be soon as he hasn't been in the forums lately, but, it will be on the list of items to read thru.
Thanks @Datalink for such an informative response.
My CODA software version is 126.96.36.199T2
DOCSIS WAN page:
|Port ID||Frequency (MHz)||Modulation||Signal strength (dBmV)||Channel ID||Signal noise ratio (dB)|
|Receiver||FFT type||Subcarr 0 Frequency(MHz)||PLC locked||NCP locked||MDC1 locked||PLC power(dBmv)|
|Port ID||Frequency (MHz)||Modulation||Signal strength (dBmV)||Channel ID||Bandwidth|
|1||23700000||ATDMA - 64QAM||39.250||2||6400000|
|2||38596000||ATDMA - 64QAM||42.000||3||3200000|
|3||30596000||ATDMA - 64QAM||39.250||1||6400000|
This is my 3rd time posting a reply. Hopefully it goes through this time.
Man i'm glad i stumbled on this.
I'm having the same issue but with my brand new TPlink ARCHER 3200
Rogers tech had checked my modem said everything was fine, then decided to unbridge my modem to test. It broke my whole home network.
the speeds improved after taking it off bridged mode.
The rogers equipment is terrible, hence the reason why people including myself get 3rd party router. Does the beta firmware fix this issue?
Why does rogers essentially throttle your connection if you do not use the router on their hardware.
@letmein9, Rogers does not throttle data rates if you're using a third party router. The issue with the D-Link routers was due to some unique method of communicating with an upstream modem. The 4582 modem firmware was changed to accommodate the D-Link router.
For a new router or for a change in modems, I recommend running a factory reset on the router. That usually resolves the problem. So, kick the modem back into Bridge mode, and as that is occurring, initiate a factory reset on the router. Give that a go and see how it turns out.
Having done that, if you still have a problem with the data rate thru the router, leave the router running and pull the power from the modem. Wait 10 to 15 seconds and plug it back in to force a restart.
Let me know if this resolves the problem.
I was having the same issue with a Linksys router when using bridge mode, I had to remove my custom dns entry and use rogers dns. I'm on firmware 188.8.131.52T2 and hoping to get a new version.
Have you verified your TP-Link is running the latest firmware? Also disable any QOS and packet filtering on the TP-Link then try again. I've been running my modem in Bridge Mode for years without any issues getting the speeds my package includes. I am using a TP-Link Archer C3150 running in access point mode behind a pfsense box.
I have the same issue with my D-Link DIR-868L router connected to the CODA-4582 modem. I found no difference in speed between bridged mode and gateway mode.
Just bought a DIR-882 and having the same issues.....
Rogers Gigabit, had service tech come out to house and "while here" (magically boosted my internet....) was able to scheme 500+ Mbps. As soon as he left the premises......back down to less than 100 Mbps.......hmmm.
Coda 4582 (Software Version 184.108.40.206T6) Residential Gateway Function disabled,
D-Link AC2600 DIR-882 (Firmware 1.10)
Wired PS4 getting 137 Mbps download, 2.6 Mbps upload
wifi laptop (new 2018) 67 Mbps download, 32 Mbps upload