GL-MT6000 (Flint 2) - 30 second hang-ups

My Flint 2 is connected via 2.5Gpbs Ethernet to a VirginMedia Hub5 2.5Gbps connection - which actually runs at 1.2Gpbs which is the ISP maximum.

On two occasions now I have seen that all the Eithernet and Wifi connections on Flint 2 hang for about 30 seconds - all at once. It may have done it more oftem but not observed.

The wifi on the main hub/router remained active at this time - so not a ISP issue.

I do NOT have VPN or any other of the optional extras on Flint 2 activated.

Sounds mostly like routing issues.

Please check How to get support quickly and tell us how your network looks like.

Which has to be the Router?