I am having trouble diagnosing an internet connection problem.
By way of background I have been using my laptop to set up six wifi aps, all of which have both frequencies and are offering multiple SSIDs two thirds of which are hidden. This has resulted in more than usual network activity on my part and at some stage in the process a new problem has arisen. To try and understand what is going on I have turned off the wireless NIC and am working with copper. This is only a problem for the two laptops I have been using. The main machine is a modern Lenovo running Tumbleweed, the other an ancient IBMT42 32 bit running Antix 19. I am raising this question now with respect to the Lenovo but the problem seems to relate to DHCP not working correctly on these devices.
In short, my NIC with a fixed IP, connects to the switch and I can ping the route ip but I get a warning exclamation mark on the task bar network widget and cannot get a WAN connection.
This is true on my usual subnet and also if I set the NIC for DHCP.
If I set the NIC for dhcp and connect to a different subnet the connection works fine and can connect to the WAN.
My desktop machines are all connected to the same switch with the same usual subnet and are all working as required.
Hi Henk and many thanks for your reply. I cleared all of the hurdles except the last when I had message:-
Name or Service not known
Sorry I cannot cut and paste but on the problem machine I have no connection.
Seems there is no name service so I must have poor configuration. Please can you advise how I should resolve as my router is supposed to have ISP DNS is supposed to be running.