TP-Link wr941n, OpenWrt, problems?

Question

Network routing

There is a TP-Link WR941N router, it worked perfectly on native firmware, 1 year. For some reason, it started crashing. I put Open-WRT on it and it stopped buggy). There are only 2 problems left:
1. Download speed - 18 mb / s. Upload speed - 66 Mb / s. On native firmware, both values ​​were about 100.
2. I forwarded the port to my server, from the external Internet - everything is fine, but from my computer (local subnet of the router) I can’t access the domain that leads to the server.
Tell me how to fix it please.

Answer 1

How did you forward the port? If with just one DNAT instruction: 1. then it should not work from the local area, because the destination server receives a request from your ip, it of course answers directly to your host, and since your host is waiting for a response from the router where it actually sent the request, then the circuit does not work. just imagine the packet moving through the network 2. You also need to add a SNAT instruction to the router so that it replaces your local address with its own.