We were thinking that maybe the problem is that the gRPC library is trying to use a http proxy set up by our customers' IT administrators on employee PCs. To me it is not clear whether gRPC (C++ version, out of the box) would try to use proxy settings in a PC if there are any.
One customer tried a laptop at home which worked, brought it to the office, and it couldn connect anymore. tisdag 16 november 2021 kl. 13:58:47 UTC+1 skrev Bengt Gustafsson: > Hi. We have a gRPC based server on the internet and our own client > software connecting to it at different customer sites. Quite often these > clients can't connect due to probably some firewall issue in their intranet > to internet connection. We changed to using port 443 to avoid firewalls > blocking outgoing traffic on unknown ports but that doesn't help. > > I turned on logging using gpr_set_log_verbosity(GPR_LOG_SEVERITY_INFO); > but I got nothing at all before I got the return value deadline_exceeded. I > have increased the timeout to 10s so it's not just slow. > > I replaced the URL with the corresponding ip number and then I got could > not connect to all addresses with no measurable delay. > > Any tips and tricks that could be useful? > > > -- You received this message because you are subscribed to the Google Groups "grpc.io" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/56f133b1-620f-4c60-9b24-6c466d1d831dn%40googlegroups.com.
