Do Nova Broadband block any ports?

For security reasons, the following ports are blocked by default:

Ports 135-139 and port 445
Windows File Sharing, blocked to prevent malware. These ports are blocked for all residential customers and for MyWave business customers. They are not blocked for SLA business customers.

Port 1900 UDP
SSDP/UPnP, blocked to prevent DDoS amplification attacks. Blocked for all customers by default.

If these port blocks present particular problems for any customer, we can unblock them for you on request to Please state:

- which port number(s)
- TCP or UDP
- reason for needing the port(s) unblocked

and we will be happy to help.

Broadband Speeds Explained

Broadband Speeds Explained

Note: This page refers to MyWave services.

What speed should I be getting?

The answer to this is as close to the advertised “up to” speed as is possible, given the technological limitations of your individual broadband link. For example, let's say you have a MyWave 20M package but your link only supports 17M, then you will get a maximum of 17M. This is a similar concept to fixed-line ADSL2+ broadband (eircom, etc) where you may be on a 24M package but your line might only support 8M, in which case you will get a maximum of 8M.

Why would my link support a certain speed, but another link support a different speed?

For MyWave customers, radio interference, link quality or distance from the local transmitter can cause a limitation in the speed you can receive.

I'm doing speed tests, and my broadband isn't running as fast as it should be. What should I do?

First of all, make sure you run speed tests using a computer and network cable. Speed tests over wifi are NOT accurate and give no indication of the speed of your actual broadband. Also, your broadband speed will vary - you are not guaranteed to get the maximum/up-to speed, especially at peak times. If you have done some cabled speed tests and your broadband is running slower than the package up-to speed a lot of the time, please raise a support ticket with us. Our support staff will do centralised testing and depending on the results of the testing, may elect to make some changes on your link, including a possible service call. If it is determined that due to physical link issues, for example interference on a radio link, that your link cannot support any higher rate, you will be offered the option of remaining on your current package or downgrading to a lower package.

Why does the speed of my broadband vary?

Many factors can make the speed vary from time to time:

  • Busy periods on the internet (at internet exchanges and big hosting sites)
  • Sources of interference coming on at particular times, e.g. evenings when interfering equipment is active
  • The performance of your computer, e.g. RAM, hard disk
  • Background applications running, e.g. anti-virus software, viruses, Bittorrent, etc.
  • Wifi interference in your home can cause a bottleneck even though the actual broadband is working properly. (Testing speed over wifi is not accurate – you should test speeds using an ethernet cable)

More information

Please see these knowledge base articles:

My broadband seems slow or I want to run a speed test
Solving wi-fi interference problems

Why do I get buffering with Netflix, YouTube, etc?

When video sites buffer (seen by the user as stuttering, pausing or stalling) it can be frustrating as it interrupts your user experience. Often, rebooting all of your equipment can help (Nova power supply, router, devices). Here is some more information regarding buffering:

A buffer allows for the download of part of a video or song so it can be played for a short amount of time, this process is called streaming.

When streaming, the buffer can become full and not allow for the next sequence to be played until the next part is downloaded. This can mean:

  • You may have performance problems on your router, your PC/tablet/device or your broadband line
  • You may not have enough speed to support the streaming content
  • There are too many people streaming the same content from the provider
  • You do not have the minimum requirement for some streaming

These issues can be caused bythe devices you are using to connect to the internet or an issue with the content provider.

There are a few steps that can be taken to help with the issue.

  1. Reboot all devices - Nova antenna power supply, router, PC/tablet/device.
  2. Change from High definition to Standard definition
  3. Check out the content provider's troubleshooting tips

Here are links to troubleshooting tips from common content providers.

How long does it take for a service engineer to come and repair a fault?

Once you report a technical issue to our helpdesk staff,  they will do a remote diagnosis and may elect to send out an engineer to repair a fault. Once a work order is issued to an engineer, we have a target turnaround time of two days for all MyWave customers. (Some business customers have different SLAs/repair times). Our engineers will do their best subject to workload, weather, etc. to meet or even beat this target. This compares to a target fix time of five days for fixed line broadband services in Ireland.

How do I bypass my wireless router (for testing purposes)?

If you need to test your broadband line without wi-fi (for example to check for wi-fi interference or to troubleshoot speed problems), please do the following (works for most users, some have custom setups):

1) Power off your wireless router (by taking out the DC supply plug from the back)
2) Take the cable out of the WAN/Internet port (usually a blue port)
3) Plug this cable into a laptop/desktop PC, wait 30 seconds
4) Test your internet speed without wi-fi

What is the quickest way to solve a technical problem?

We all want to get things done as quickly as possible in life and given how we depend on our broadband, fixing broadband issues is no exception. We operate a technical support helpdesk from our offices in Little Island, Cork. If you have a technical problem, we recommend the following procedure for the quickest possible solution:

"Have you turned it off and on again?"
Really - this often sorts out problems. We recommend rebooting computers/tablets, powering off your Nova power supply/POE and router for 2 minutes, then on again.

Check the knowledge base
We have analysed all of the top issues over the years and covered solutions in our knowledge base. Go on - give it a shot, you'd be surprised how often it works.

Submit a Service Request Ticket
You can do this online in a jiffy by clicking here. Alternatively you can phone it in but this is slower as the person you deal with will take the details and raise a ticket for you. Our gifted and talented support gurus will go through tickets sequentially and analyse and sort your problem.

How do I forward my Nova Broadband phone service to another number?

Sometimes it is convenient to forward your phone to another number, e.g. your mobile. To do this you have to pick  up the phone and dial the following:

*72 [number to forward to]

then wait for a dial tone and hang up.

To cancel call forwarding, dial


then wait for a dial tone and hang up.

Please note that you will be billed for any calls that are forwarded from your phone to the new number at the appropriate rate, for example if you forward to a mobile, you will be billed calls that get forwarded to your mobile as if someone on your phone called a mobile. Full rates are available at

Solving wi-fi interference problems

What is interference?

Your wi-fi system in your house works using radio waves. Your FM radio goes from 88-108 and each station gets its own slice of the airwaves, for instance RedFM might be on 104.6 and 96FM might be on 96.4. Imagine if both of them were on the same channel? You would hear a garbled mess with bits of each station coming through but neither would be able to get their message across.

Why does wi-fi sometimes suffer from interference?

In your home, your wireless router (wi-fi router) operates on a certain channel. If there are other radio sources (wireless routers, baby monitors, video senders, wireless CCTV, cordless phones, etc) operating in your house (or your neighbours') on the same channel, they can drown out your wi-fi signal, causing your internet to slow down, as the data cannot get across with the noise blocking it out.

How do I know if I have wi-fi interference?

If your internet is slow, you may have wifi interference. Another common symptom is that the internet works okay when very near the wireless router, but as you move away to other rooms it doesn't. You can check to see if wi-fi is the problem using the following method (works for most users, some have custom setups):

1) Power off your wireless router (by taking out the DC supply plug from the back)
2) Take the cable out of the WAN/Internet port (usually a blue port)
3) Plug this cable into a laptop, wait 30 seconds
4) Test your internet speed without wi-fi

If it is fast without wi-fi and slow with wi-fi then the wi-fi is the problem! This means you either have wi-fi interference (most likely by far) or a faulty router (rare).

How do I sort this out? I don't want to be stuck to a cable all the time!

Put simply, if your wi-fi has interference on a certain channel, you should try other channels, as follows. Note these instructions are for a Nova-supplied TP-Link router. Other models vary (do some Googling to find directions.)

1) In your web browser, type into the address bar (where you normally see and hit enter. You should be asked for a username and password. If not, try
2) Give a username of admin and password of admin, hit enter. If these don't work, use the password on a label under the router
3) In the menu go to Wireless
4) Change the Channel dropdown to 1 and click Save. If prompted to do a reboot, then do the reboot. Your devices (PCs, smartphones, etc) might need a reboot also.
5) Test to see if the problem is resolved. If not, repeat the procedure trying channels 6, 11, 4 and 8 in that order

None of this helped?

You may have a faulty router. Please contact our tech support. Unfortunately in some highdensity areas, there may not be any channels available.

I need to re-program a TP-Link wireless router supplied by Nova

If you need to setup a TP-Link router, you can do so by following these steps:

1) Disable wifi on your computer if possible

2) Connect a network cable between your computer and any of the yellow LAN ports on the back of the TP-Link router. Wait 30 seconds

3) Open your web browser (, Chrome, Firefox, Internet Explorer, Safari, etc.) and type the following into the address bar at the top:

and hit enter. (If that doesn't work, try

4) Enter a username "admin" and password "admin". You should now see the TP-Link setup screen.

5) In the main menu, select "Quick Setup" then click "Next".

6) If you have a Nova antenna on your house/apartment, select Dynamic IP, then click Next.
If you have a Nova cable connection (an apartment with no antenna), select PPPoE, then click Next, then enter a username and password supplied by us (call 021 2429560), then click Next.

7) Select Wireless Security type WPA-PSK/WPA2-PSK and enter a password you will remember. Click Next, then Finish.

8) Disconnect the cable from the router and turn on your wifi. When the network is found, connect and enter the password you supplied.

A small number of users may have a special type of connection called Static IP. If this is the case (you would have requested it), call us on 021 2429560 for the IP settings for your router.

How do I use MyTalk phone service with all of the existing extensions in my home?

Our phone adapter has one active phone port on it, which becomes your virtual phone line. You can plug a single phone into it or you can use a splitter to plug more than one phone in.

If you have existing extensions in the house that are all connected to your old eircom line, you can use the following procedure to make them all work with your Nova phone service:

1) You need to disconnect your eircom line from these extensions. This can be done by disconnecting the appropriate cable as it enters the house or by disconnecting it in the main eircom socket. We recommend that only competent persons do this, such as qualified electricians. Note that you would have to undo this step or hire someone to do it for you if you need to connect your extensions to the old phone line again in the future.

2) Connect a splitter to your Nova phone adapter "Phone 1" port. Connect a phone to one side of the splitter, then use a phone cable to connect the other side of the splitter to the phone socket on the wall. This will send the phone signal out to all of the other extensions in the house.