With my PC tech skills, I never went down the rabbit hole of networking, So my skillset here is minimal.
I have an older refurbished ASUS RT-AC87R Wireless-AC2400 Dual-band Gigabit Router
has been working fine for many years.
This is connected to a NETGEAR ProSAFE 16-Port Gigabit Ethernet Switch (GS116NA)
and we have Google fiber to the router.
We have ethernet and wifi devices.
The issues is if you plug a ethernet cable into a device it will not get a connection,
the only way to get the device to connect is while the device is connected and turned on, we need to reset the router, then it connects.
But any devices that were not turned on when you reset the router will now not connect.
The dumb a$$ work around we had to do was turn every single device that uses the network on and then reset the router.
Any ideas. I did do a firmware update on the ASUS router, no fix.
If you connect a PC directly to the router, does it get a connection? If so, the switch is at fault. If not, you may need to reset the router to factory settings. Should that not yield results, try a different router. If the different router also fails, it might well be the switch after all. Have you done a factory reset on the switch yet?
Do the Wifi devices get network access?
If you have windows machines on the network, run ipconfig /all in the CMD. In the CMD, one of the entries should have “IPv4 Address” and then something that is either 10.x.x.x, 172.16.x.x or 192.168.x.x
In case the above results in 169.254.x.x, then you got a DHCP related issue.
I have reset router back to factory prior already.
I do need to try and bypass the switch, but wondered if there was something obvious to network people to try first that I didn’t know. there was wifi devices that had the issue also, which removed the switch from the scenario unless it is causing the router to do this.
I did move the switch to a different port on the router, and I used to have 2 other switches on the router prior to this issue years ago that weren’t being used, and were disconnected so I removed those cable connections also, so now there is just the one switch.
One thing I found strange is looking at the list of connected devices in the router a couple of them say static instead of DHCP. When I checked the computers that had this label, they were not set to static in their network ipv4 settings, strange ?.
ipconfig /all looks correct.
Could be a DHCP issue. Does ipconfig show a proper address on a non-working PC? If so, can the non-working system communicate with other local PCs, even if it can’t reach the internet?
If it’s a DHCP problem, set all your devices with static IPs based on the address settings of a working system with just the last octet of the IP address different, and see if everything works, or at least if it can reach other systems.
go into your routers settings and see if the device list has been filled.
same for the switch.
you may not be able to connect new devices till you clear out some old device id’s.
and check your setting to see if you have limited the amount of devices you can connect. it should be 255 or there abouts.
Okay, so something purely router related then.
It makes sense to have static entries for printers, NAS and similar.
So… mismatch between the computer expecting a new DHCP-Lease and the router thinking the devices are static?