I just ran that test, as adviced by a member in another thread, which showed that with my internet connection everything is fine.

Though it gave me 2 warnings.

- Basic UDP access is available.

The client was able to send fragmented UDP traffic.

The client was unable to receive fragmented UDP traffic. The most likely cause is an error in your network's firewall configuration or NAT.

The maximum packet successfully received was 1472 bytes of payload.

Direct UDP access to remote IKE key exchange servers (port 500) is blocked.

They suggest that there might be an error in the firewall or NAT settings from the router which is used to connect to my ISP, but the router doesn't have those settings.

- The second one was about a router D-Link 615, that is configured as an access point, which seems to run vulnerable firmware

This device appears to run "Linux/2.4.22-1.2115.nptl UPnP/1.0 miniupnpd/1.0". This system may be vulnerable to CVE-2013-0230

Anything I can do to solve these problems ?

A third issue is actually that I have one more router configured as access point on the network, but the test doesn't detect that router, though it is working properly and can be accessed.

Major Abnormalities –

• Your ISP's DNS server is slow to lookup names

Minor Aberrations –

• The network latency was somewhat high
• The time to set up a TCP connection was somewhat high

I just ran this test with TOT Fibre2U using Linux Mint 17.3

Apart from high ping rates etc nothing was untoward.