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Solved
MR60 Firmware V1.1.7.134 - Possible issues with this firmware version and DoS/Port Scan Protection
Product Affected: Netgear Nighthawk MR60
Firmware Version (Router & Satellite): V1.1.7.134
I've recently suffered two brief power outages about a week apart from each other and in both instances, when the power came back up, some devices could not connect back to the MR60 automatically (as they would after any reboot or unexpected power loss). Gracefully rebooting the router via the management interface or forcefully by unplugging the cable did not fix the issue for affected devices.
Regardless of the connectivity type (wired or wireless), the only common denominator between all the affected devices is DHCP. For example, an affected iPhone would get assigned APIPA when trying to connect to the wireless network. I could however set a static IP address (+DNS) on it, and network connectivity (internet and local LAN access) would be restored.
The first time this issue occurred, I simply factory reset the router and satellite and the problem went away.
Today, the issue came back after a power outage and I wanted to get to the bottom of it. So, I did some googling and a user had a similar-but-not-quite-the-same issue. They said that checking the option "Disable Port Scan and DoS Protection" under Advanced > Setup > WAN Setup on the router's management interface fixed it for them.
I did the same, and lo and behold, all devices affected by this DHCP issue received a lease and got connected.
What's interesting is that nothing was showing in the logs. No DHCP leasing attempts for affected devices, no errors related to DoS or Port Scanning protection, nothing. Only DHCP leases for the working devices. I can only assume that the affected devices' packets (i.e. DHCP requests) were seen as undesirable by this security feature and dropped.
Important Note: I have owned the MR60 for about 2 years and suffered many power outages during this time, and this is the first time since I've updated it to the latest version (V1.1.7.134 - at the time of writing) that this issue has surfaced.
- Checking the option "Disable Port Scan and DoS Protection" resolved the issue for me, even after subsequent power outages.
16 Replies
what modem/gateway is the router connected to?
- The MR60 router is connected to an Arris TM822, a modem provided by my ISP
LogicaLv wrote:
The MR60 router is connected to an Arris TM822, a modem provided by my ISPJust a modem. Not even a cunningly hidden router function by the look of it.
How many RBS are deployed?
What is the size of your home? Sq Ft?
What is the distance between the router and 📡 satellite(s)? 30 feet or more is recommended in between MR and MS🛰️ to begin with depending upon building materials when wirelessly connected.
https://kb.netgear.com/000061709/Where-should-I-place-the-Mesh-WiFi-satellite-of-my-Nighthawk-Mesh-WiFi-6-and-Tri-band-Mesh-WiFi-6-products 📡What channels are you using? Auto? Try setting manual channel 1, 6 or 11 on 2.4Ghz and 40 to 48 channel on 5Ghz.
Any Wifi Neighbors near by? If so, how many?Has a factory reset and setup from scratch been performed since last FW update? A complete pull of the power adapters for a period of time after the factory reset then walk thru the setup wizard and setup from scratch with a wired PC and web browser. Recommend setting the default DHCP IP address pool range to the following after applying and a factory reset: 192.168.#.100 to 192.168.#.200.
For any Apple or Android mobile devices, be sure to disable the random mac address features on these devices While at home:
I have an MR60 with four MS60 satellites set-up in a vacation house and seem to lose device connectivity over time, perhaps might be from power outages as I’m not there to verify. Has the solution that you mentioned, “checking the option "Disable Port Scan and DoS Protection" under Advanced > Setup > WAN Setup on the router's management interface”, resolved the issue after subsequent power outages? Until I visit the house next, I’m only able to access the router with Anywhere Access and reboot, which doesn’t get many if any of the devices to reconnect (the Nighthawk app will show most if not all the devices connected, but they are not working remotely, mainly Kasa cameras and switches).
What is the size of your home? Sq Ft?
5,000 square feet
- Checking the option "Disable Port Scan and DoS Protection" resolved the issue for me, even after subsequent power outages.
Glad you got it working. Please mark your thread as solved so others will know. Be sure to save off a back up configuration to file for safe keeping. Saves time if a reset is needed.
https://kb.netgear.com/24231/How-do-I-back-up-the-router-configuration-settings-on-my-Nighthawk-router
Enjoy. 📡
LogicaLv wrote:
Checking the option "Disable Port Scan and DoS Protection" resolved the issue for me, even after subsequent power outages.
