Issue with Technicolor CGA2121 Router: Connectivity Loss on Asus Router, Console & TV

Yes. You only have to make sure that the operator's device does not work in bridge mode (modem) but in router mode and you have to make sure that there is no limit to the number of wired clients connected. To do this, call the operator's hotline and ask.

There is also a 4th option, the simplest, which I don't understand why you didn't choose it.

4. You forget the ASUS router and just use the Technicolor CGA2121 in router mode with WiFi. The name of the WiFi network and the password are configured from the client panel in Multimedia.

After all, why didn't you do that from the beginning? Could the subscription with WiFi on be PLN 5 more expensive per month?

In fact, since the gentleman from Multimedia connected the Technicolor, it works in modem mode. I didn't even ask about WiFi from the Technicolor, because I thought this Asus was better.

The person who assembles this Technicolor cga2121 device did not explain to you in what mode it sets it? If it works in bridge mode from the beginning, then 3 clients connected to it by cable were not allowed to work at the same time.

It turns out that ASUS is not better, it is a bottleneck. Maybe it's better to switch the operator's device into router mode with WiFi?

The person who installed the device from the operator did not point out to you that your router may be a bottleneck? After all, if a guy walks around and assembles 10 or 20 such devices a day, he should more or less realize that 300Mbps may be too much for older router models.

He did not say anything.

Technicolor does not produce WiFi even when I turn on the button, the network is a few seconds and disappears. And I can only connect one device to it via cable.

Multimedia has a panel where you can check some of the settings - https://www.multimedia.pl/Multimedia.pl/media/Instrukcje/1.pdf - maybe check what you have in this panel?

In general, switching to router mode with WiFi will cause you to have 300Mbps over Ethernet, and over WiFi it's probably also more than 100Mbps (I don't know how much this Technicolor draws).

These modems are mainly antiques and remnants from Virginia, i.e. hub3 equivalents with branded Polish software loaded.


1Gbps on LAN
300Mbps wifi 2.4GHz
600Mbps wifi on 5GHz

In general, they are mediocre in operation, with several connected devices and often hang.

However, they work best as a modem.

So it will be best to buy a router that supports 300 mb/s

Well, if you like to buy more devices, cool. You have a device from the operator that colleague RobeMek described in post #39. I cannot relate to this description in terms of the failure rate of this device. Well, since you have this device, why not try to use it.

You just need to know in what mode this device works - as a Z NAT router or as a bridge. And don't guess it by judging if it's putting out wifi or not putting out wifi. Ask the operator.

Regarding what a colleague wrote here earlier, that only a technician can do it on the operator's hotline - well, on a cable TV in a large city where I live (not Warsaw) all operators have access to a panel where you can perform standard, template tasks, in cases in which clients call. These are not the times when you need to know each other to reconfigure the terminal at the client's, there are simply panels for that and operators have access to them. Maybe it's similar in Multimedia, I don't know.

Technicolor from multimedia works as a modem. And in total, I would switch it to the router, but if you have to hang it every now and then, it will end up being replaced. Today I will call multimedia and switch the Technicolor to the router and see how it works.

Check, those in Poland have a completely different soft and sometimes the layouts are changed like a newer one, it's actually a model produced since 2013 with minor changes to the version or housing design. Usually it works without a problem as soon as 2-3 devices, I had over 20 of them, mainly under wifi, probably because there were problems with losing the network and the router crashing from time to time.


In addition, in the router mode, it was limited to 3-4 sessions (that's what I had in the subscription) because it happened that with more devices it started to hang or there was no Internet connection. :/

For some time I was so tired before I connected my own router NETGEAR Nighthawk R7000P (1 Gbps LAN, Wifi up to 600 Mbps at 2.4 GHz and 1600 Mbps at 5 GHz) to and since then no problems, the device limits have also disappeared.

My technicolor is from 2020. I'll see how it will work as a router, it will be linden, I'll be messing around.
Thank you for your help and patience.