Sponsored Links

Huawei CPE Pro 373 changes W.A.N address

bogalla

Casual Member
Perhaps someone in this forum may be able to help me? I have a Huawei H122-373 modem router with a 5G Three SIM. Trouble is every so often, if I re-boot or re-set the device to enable 5G again (it keeps losing it every 24/36 hours or so for some reason) the router sometimes, but not always, has the WAN ip address of 192.168.9.1 and will not connect to the internet. I have even seen 192.168.10.1 on occasions. The only way I can get it back to what it should be 192.168.8.1, is by resetting the device several times and then all is well again for a while.....I have some screenshots of what is happening for info. Anybody else have any issues such as this - is there a way round it I wonder?
 

Attachments

  • Screenshot 2022-06-09 120322.webp
    Screenshot 2022-06-09 120322.webp
    14.9 KB · Views: 203
  • Screenshot 2022-06-09 120520.webp
    Screenshot 2022-06-09 120520.webp
    25.2 KB · Views: 130
I can't think why it would do this but you mean the internal LAN address, not the external WAN IP don't you? Does it not just reset to the default 192.168.8.1 after you reset? Maybe it's time to just get a new router!
 
No, it's the external WAN address that changes. Should be 192.168.8.1 for Huawei modems, but mine changes to 192.168.9.1 or I have even seen 192.168.10.1 ocasionally. Might be the modem i suppose, but at the moment it's back to 192.168.8.1 with very good speeds. If I re-set or re-boot it may go back to a WAN address of 192.168.9.1 or 10.1. Strange.
 
Sponsored Links
Your IP range doesn't match your LAN IP address in the pic you posted. 192.168.8.1 is a LAN IP, what do you get when you type ipconfig /all in cmd?
https://www.ipchicken.com/ this site will show your external(public) IP address.
 
I can't see why the router address is changing either, but Pollax is right - 192.168.8.1 is the LAN address, not the WAN address. If you look at your screenshot, it is correctly labelled "LAN IP address".

192.168.*.* is one of three sets of "non-routable" IP addresses which are reserved for use on LANs - they don't get as far as the Internet. As it happens, my router is on 192.168.8.1 as well (so are lots of others!) and we couldn't all be using that IP if it was routable - but it isn't, so we can all use it quite happily.

None of which helps you one little bit with the Internet connection failing. . The thing is, unless you are using fixed IPs on your LAN, that fact that the router is switching from 192.168.8.1 to 192.168.9.1 on reboot shouldn't matter - the devices on your LAN would just pick up a IP in the new range and carry on. It isn't normal behaviour on any router I've used, though. Are you quite sure there isn't anything else on your LAN using 192.168.8.1, or acting as a DHCP server? I can imagine that might generate enough confusion on the LAN to cause the Internet to be inaccessible.

Failng that, I think I'd be trying a factory reset on the router. Hope you manage to fix it.
 
Hi both, thanks for your reply. I'm new to this and yes, it is the LAN address that changes from what it should be 192.168.8.1 to 9.1 and occasionally 10.1. (I tried to change the address back to 192.168.8.1 from 9.1 and that's where the error message "I.P address is empty or invalid. Please re-enter!" came from). My connection using ipconfig /all at the moment is showing 192.168.8.1, and all is good, but earlier, around lunchtime it was 192.168.9.1 as in the photo and the internet was not working. Typing the address 192.168.8.1. yielded the other photo.
I have done many factory re-sets on the router with no effect really. I do not think any else is conflicting on 192.168.8.1 or acting as a DHCP server as the modem router is all that connects to the internet.
Thank you for you help. It does seem to come back itself after a re-set/re-boot so I can live with that.
 

Attachments

  • Screenshot 2022-06-09 123048.webp
    Screenshot 2022-06-09 123048.webp
    49.1 KB · Views: 78
  • Screenshot 2022-06-09 120619.webp
    Screenshot 2022-06-09 120619.webp
    23.8 KB · Views: 71
Hi both, thanks for your reply. I'm new to this and yes, it is the LAN address that changes from what it should be 192.168.8.1 to 9.1 and occasionally 10.1. (I tried to change the address back to 192.168.8.1 from 9.1 and that's where the error message "I.P address is empty or invalid. Please re-enter!" came from). My connection using ipconfig /all at the moment is showing 192.168.8.1, and all is good, but earlier, around lunchtime it was 192.168.9.1 as in the photo and the internet was not working. Typing the address 192.168.8.1. yielded the other photo.
I have done many factory re-sets on the router with no effect really. I do not think any else is conflicting on 192.168.8.1 or acting as a DHCP server as the modem router is all that connects to the internet.
Thank you for you help. It does seem to come back itself after a re-set/re-boot so I can live with that.
Those screenshots don't suggest that you don't have access to the Internet, though. ipconfig says your subnet is 192.168.10.* which is OK, and identifies the gateway (your LAN's gateway to the Internet) as 192.168.10.1 - i.e. your router. That should work. The reason you are getting no response in the browser is that you are trying to reach a device on a different LAN subnet (192.168.8.*), which isn't allowed, but 192.168.8.* isn't the Internet.

Just to be clear (not trying to teach you suck eggs!) - the first three octets (i.e. 192.168.8) of the LAN IP and of the DHCP range must be the same - so LAN IP 192.168.8.1 and DHCP range of 192.168.8.100 to 192.168.8.200 should be fine. If any of the first three numbers are different, things won't work.
 
Sponsored Links
Thank you sbaggs, it must be something my end I think, If you look at the 1st picture I downloaded earlier it shows the router being connected to the internet but as a “globe” and no 4G/5G signal strength with 10 devices connected, whereas my connection now is as this picture showing a good 5G signal and 28 devices connected!
 
Here’s the connection just now.
 

Attachments

  • A580D1A3-7974-46E2-BFD1-B3F04CCAD523.webp
    A580D1A3-7974-46E2-BFD1-B3F04CCAD523.webp
    37.1 KB · Views: 87
Sponsored Links
That all looks good now, 28 devices is a fair amount!
Still not sure why it would jump from 8.1 to 9.1 or 10.1 but sbaggs theory about another device causing that is certainly probable. In post #6 the default gateway was 192.168.10.1 but you'd typed 192.168.8.1 in the browser which explains why you couldn't connect to the admin page of the router.
 
Look at all your other devices especially routers, switches and Wifi repeaters. One of them could have its own DHCP server turned on and giving the CPE a crisis in its own DHCP or just interfering with it without DHCP server being turned on.
 
Ah! You could have a point, I do have a set of 3 BT Whole Home repeaters for the house, so perhaps these could be setting up a rival DHCP of their own somehow? I don’t have anything else, such as another modem/router or Wi-Fi repeaters so perhaps you have are right. It’s been working fine since yesterday, so as they say I’ll let sleeping dogs lie. Cheers.
 
Top
Cheap BIG ISPs for 100Mbps+
Community Fibre UK ISP Logo
150Mbps
Gift: None
Virgin Media UK ISP Logo
Virgin Media £22.99
132Mbps
Gift: None
Vodafone UK ISP Logo
Vodafone £24.00 - 26.00
150Mbps
Gift: None
NOW UK ISP Logo
NOW £24.00
100Mbps
Gift: None
Plusnet UK ISP Logo
Plusnet £25.99
145Mbps
Gift: £50 Reward Card
Large Availability | View All
Cheapest ISPs for 100Mbps+
Gigaclear UK ISP Logo
Gigaclear £17.00
200Mbps
Gift: None
Community Fibre UK ISP Logo
150Mbps
Gift: None
Virgin Media UK ISP Logo
Virgin Media £22.99
132Mbps
Gift: None
Hey! Broadband UK ISP Logo
150Mbps
Gift: None
Youfibre UK ISP Logo
Youfibre £23.99
150Mbps
Gift: None
Large Availability | View All
Sponsored Links
The Top 15 Category Tags
  1. FTTP (6027)
  2. BT (3639)
  3. Politics (2721)
  4. Business (2440)
  5. Openreach (2405)
  6. Building Digital UK (2330)
  7. Mobile Broadband (2146)
  8. FTTC (2083)
  9. Statistics (1901)
  10. 4G (1816)
  11. Virgin Media (1764)
  12. Ofcom Regulation (1582)
  13. Fibre Optic (1467)
  14. Wireless Internet (1462)
  15. 5G (1407)
Sponsored

Copyright © 1999 to Present - ISPreview.co.uk - All Rights Reserved - Terms  ,  Privacy and Cookie Policy  ,  Links  ,  Website Rules