Author Topic: Inconsistent Local IP  (Read 121 times)

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Offline mkcolgrove

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Inconsistent Local IP
« on: May 06, 2019, 11:22:14 PM »
If I go into cmd and type ipconfig, I am given that my ipv4 is 192.168.7.172. However when connected to my router adding a port forwarding rule, if I type that in it gives me an error for invalid IP. If i type the same thing except with a 1 where the first 7 is, it accepts, however upon checking, the port still isnt open. Similarly ipconfig lists the default gateway as 192.169.7.1 and if I try to go to that, it fails, however if I go to 192.168.1.1, then it does connect to my router.
It should also be noted that earlier today when I was working on this my local IP showed as something entirely different within the router gui (which was inconsistent with ipconfig even then), and after telling the router to "Reserve IP" and waiting a few hours, my computer name doesnt show up as connected to the router at all, and the IP it showed then isnt connected at all.
The local IP is consistent if I access my router from my phone, so it seems to be a pc issue.

using a Sagemcom Fast 5260, windows 10
« Last Edit: May 06, 2019, 11:24:55 PM by mkcolgrove »

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Inconsistent Local IP
« on: May 06, 2019, 11:22:14 PM »

Offline trpted

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Re: Inconsistent Local IP
« Reply #1 on: May 07, 2019, 01:26:49 PM »
While you say you have the Sagemcom Fast 5260, something tells me that we need to find out the rest of the network layout.

Note: From an user's guide / manual for the Sagemcom Fast 5260, at https://setuprouter.com/router/sagemcom/fast-5260/manual-2104.pdf - your NAT router has 5 RJ-45 ports (4 of them are the LAN ports.)

#1 If you are not sure of the network layout, start of by physically finding the equipment.

#2 This was my network layout what it used to look like.

a) A phone wire and a power wire from wall jack goes to power surge protector

b) A phone wire and a power wire from power surge protector goes to my Westell-F90-610015-06

c) An Ethernet wire from Westell-F90-610015-06 goes to my Linksys E4200's RJ-45 WAN/Internet/To Modem / To ONT - Port.

d) All of my computers are either connected to the Linksys E4200 by wire or by wireless.

#3 If not sure of what kind of cable is (or cables are) used, that is fine as long as you can just tell everything what you know about the network layout.

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Re: Inconsistent Local IP
« Reply #1 on: May 07, 2019, 01:26:49 PM »