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Forum Discussion
R7400 disconnects from Internet on every WAN DHCP lease renewal
Configuration ------------- Netgear Nighthawk R7400 router connected to Surfboard SB6141 cable modem Router firmware: V1.2.0.92_1.0.1 Problem ------- The router disconnects from the Internet...
Thank you for your reply.
The cable between the modem and the router is CAT 5, but it's only 6ft long. The coax I can see (because it's not in the crawl space) leading to the modem all appears good. The signal quality seems to be fine, whereas the DHCP-renewal-disconnect problem seems to be protocol/logic related.
I've previously factory-reset both the modem and the router and reset the network more than once, but I factory-reset the modem again today, then reset the network in the specified sequence. The Internet disconnection on DHCP renewal problem was present after the network reset with the router in its factory configuration and is still present after I reconfigured the router to my settings.
I recommend trying a CAT6 LAN cable. CAT5 officially only supports 100Mpbs. WAN and LAN ports one the router and I presume your modem support 1000Mpbs.
Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly. Have them check there logs for any odd issues on there side when this is seen.