TypeError: NetworkError when attempting to fetch resource.

[siimphh]

Are you able to test this against LHR ipv6 forward proxies:

OGS Connection issues for BT users - and maybe others (update)

Since I had been suspicious about the router firmware update that happened around the same time frame, I connected my laptop directly to the pppoe on the openreach modem and can confirm that in that configuration as well the cloudflare websocket goes silent after 20 seconds. So whatever is going on is happening deeper in the network, not a bad router software update. FWIW, this reproduces the issue without relying on websockets and without referencing anything about online-go.com specifically: …

The connection reliably stalls via CF only. It has nothing to do with OGS specifically AFAICT, but something either in LHR forward proxies, or I guess it’ts feasible BT could be doing something weird for ipv6 only and for CF peering only, but that sounds pretty tenuous.

Anyway, it’s just not correct that CF is the most stable path for BT users, the CF path is in fact 100% broken for any connection that still needs to send requests more than 20s into the connection.