Business Community > Routers > Solution to DHCP Issues of Routers (ER605 | ER7206 | ER8411 | ER7212PC) [Closed on May 22nd 2023]
< Routers

Solution Solution to DHCP Issues of Routers (ER605 | ER7206 | ER8411 | ER7212PC) [Closed on May 22nd 2023]

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
18910...

Solution Solution to DHCP Issues of Routers (ER605 | ER7206 | ER8411 | ER7212PC) [Closed on May 22nd 2023]

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
276 Reply
Re: ER605 ER7206 v1 - DHCP Server May Fail With 1.2.0 and 1.2.1 Firmware [Updated on Nov 11st 2022]
2022-11-15 03:20:33
I cannot risk upgrading the router to the 1015 beta again as it brought down most of my network and I could not re-establish connections on the devices until I downgraded the version back to the sept beta. Others have posted similar results while on 1015 earlier in this thread so I'm not alone.
OmadaLinux v5.13.10 R605 V1:1.3.0 - Build 20230511 R.51317 SG2008P V1:V1.0.8 Build 20230602 R.73473 SG2008P V3:V3.0.5 Build 20230602 R.73473 3 x EAP245 V3:V5.1.0-Build 20230104 R.79433
  0  
  0  
#85
Options
Re: ER605 ER7206 v1 - DHCP Server May Fail With 1.2.0 and 1.2.1 Firmware [Updated on Nov 11st 2022]
2022-11-15 12:29:41

Dear @TandS,

 

TandS wrote

I cannot risk upgrading the router to the 1015 beta again as it brought down most of my network and I could not re-establish connections on the devices until I downgraded the version back to the sept beta. Others have posted similar results while on 1015 earlier in this thread so I'm not alone.

 

Sorry for any trouble caused. I understand your point here. But our support engineers are unable to reproduce the issue in the lab at present, and the 1015 beta has been working steadily almost 1 month in our production environment, it's hard to check what's going on and figure out the issue you suffered with the 1015 beta right now.

 

We may need to wait for someone to reproduce the issue for us and try to fix it. On the other hand, the support engineers would like to have your network topology and device info in your current network for further testing. I've created a support ticket via your registered email address, the ticket ID is TKID221121347, if you're willing to help, please pay attentiont to this ticket email and respond to the support engineer. Thanks!

>> Omada EAP Firmware Trial Available Here << *Try filtering posts on each forum by Label of [Early Access]*
  0  
  0  
#86
Options
Re: ER605 ER7206 v1 - DHCP Server May Fail With 1.2.0 and 1.2.1 Firmware [Updated on Nov 11st 2022]
2022-11-15 13:28:53 - last edited 2022-11-15 15:28:14

I can add a few more details which will hopeful help your technicians resolve the issue

- I installed the 1015beta in the morning (in the hopes of being able to create a switch ACL rules based on MAC ID's - new feature pending new firmware release) and all appeared to work w/o issue (not the MAC ID's based ACL rules... but the firmware itself )throughout the day

- I have a WLAN schedule setup to have the wifi radio shutdown on Monday - Thursday from 7:00pm - 9:30pm  (As an FYI I opened another issue on this feature as well because it doesn't consistently work... It doesn't consistently turn off the radios per the set schedule ... yet another frustration) : https://community.tp-link.com/en/business/forum/topic/589070

- The WLAN schedule turned the radios off correctly on the day I upgraded the firmware but when the radios came back up at 9:30pm MOST devices failed to connect to the internet and some appeared to have arbitrary non sensical IP address.  Forcing a reconnect of the devices did nothing to resolve the issue.  Neither did rebooting the router, restarting the controller, rebooting the switch or rebooting all the EAPs)   I had no choice but to downgrade the firmware.

- I have a number of devices (TPLINK IOT devices + game consoles) setup with static IP address using the dhcp reservation option (This feature BTW only 1st appeared to work as expected with the 0922 beta firmware (and was yet another feature that was introduced that didn't work as intended for me until a subsequent beta firmware was released.

 

 

Fae wrote

Dear @TandS,

 

TandS wrote

I cannot risk upgrading the router to the 1015 beta again as it brought down most of my network and I could not re-establish connections on the devices until I downgraded the version back to the sept beta. Others have posted similar results while on 1015 earlier in this thread so I'm not alone.

 

Sorry for any trouble caused. I understand your point here. But our support engineers are unable to reproduce the issue in the lab at present, and the 1015 beta has been working steadily almost 1 month in our production environment, it's hard to check what's going on and figure out the issue you suffered with the 1015 beta right now.

 

We may need to wait for someone to reproduce the issue for us and try to fix it. On the other hand, the support engineers would like to have your network topology and device info in your current network for further testing. I've created a support ticket via your registered email address, the ticket ID is TKID221121347, if you're willing to help, please pay attentiont to this ticket email and respond to the support engineer. Thanks!

  @Fae 

OmadaLinux v5.13.10 R605 V1:1.3.0 - Build 20230511 R.51317 SG2008P V1:V1.0.8 Build 20230602 R.73473 SG2008P V3:V3.0.5 Build 20230602 R.73473 3 x EAP245 V3:V5.1.0-Build 20230104 R.79433
  0  
  0  
#87
Options
Re: ER605 ER7206 v1 - DHCP Server May Fail With 1.2.0 and 1.2.1 Firmware [Updated on Nov 11st 2022]
2022-11-15 13:35:57

  @Fae 

 

I generally think, that this bug DEPENDING to hardware constellation you use.

 

Here the bug with:

 

OC200 , ER605 -> connecten to P1 on TL-SG3452, which is conntected with LAG static 4xDAC to TL-SG3452P , + 4xEAP245.

 

Bug1: LAG LACP dont work between TL-SG3452 and 3452P, so only static works

Bug2: During reboot with 1015 beta, ALL DHCP units are getting VLAN1 IP??

Nug3: Although they have FIXED IPs, they just stay on VLAN1 . 

 

After Downgrade to 0902 beta, DHCP ist working, I can reboots without the issue of getting VLAN1 IP?!

But I stil cant connect 3452 and 3452P fpr LAG LACP. After creating it is working, but if I reboot one of the switches, network will be dead until I disconnect all LAG connected cabels.

 

But it is another bug , that should be solved by a firmwarefix, I think.

 

Best Wishes

Alex

  0  
  0  
#88
Options
Re: ER605 ER7206 v1 - DHCP Server May Fail With 1.2.0 and 1.2.1 Firmware [Updated on Nov 11st 2022]
2022-11-17 04:04:21

Dear @kogan,

 

kogan wrote

Here the bug with:

 

OC200 , ER605 -> connecten to P1 on TL-SG3452, which is conntected with LAG static 4xDAC to TL-SG3452P , + 4xEAP245.

 

Bug1: LAG LACP dont work between TL-SG3452 and 3452P, so only static works

Bug2: During reboot with 1015 beta, ALL DHCP units are getting VLAN1 IP??

Nug3: Although they have FIXED IPs, they just stay on VLAN1 . 

 

After Downgrade to 0902 beta, DHCP ist working, I can reboots without the issue of getting VLAN1 IP?!

But I stil cant connect 3452 and 3452P fpr LAG LACP. After creating it is working, but if I reboot one of the switches, network will be dead until I disconnect all LAG connected cabels.

 

The issue doesn't seem to be a DHCP issue discussed in this thread. As all DHCP units are able to get the IP addresses, the DHCP is working. For the issue that the DHCP doesn't work in the correct VLAN, did you try the same reboots after installing the 1015 Beta?

 

If you want to figure out the issues, it's recommended to Start a New Thread here to discuss further and get help from TP-Link experts and fellow customers alike. More detailed information including your network diagram and configurations would be helpful to get better assistance with your case, you may also check Tips For Efficiently Reporting an Issue (or Asking a Question) In The Community before you start the thread.

>> Omada EAP Firmware Trial Available Here << *Try filtering posts on each forum by Label of [Early Access]*
  0  
  0  
#89
Options
Re: ER605 ER7206 v1 - DHCP Server May Fail With 1.2.0 and 1.2.1 Firmware [Updated on Nov 11st 2022]
2022-11-17 04:15:01

Dear @TandS,

 

Thank you for your details, I've forwarded this to the support engineers, hope they can find some clues. Please feel free to reply to the ticket TKID221121347 if you have more additional information to add. Thank you for your great cooperation and patience!

>> Omada EAP Firmware Trial Available Here << *Try filtering posts on each forum by Label of [Early Access]*
  0  
  0  
#90
Options
Re: ER605 ER7206 v1 - DHCP Server May Fail With 1.2.0 and 1.2.1 Firmware [Updated on Nov 11th 2022]
2022-11-17 16:37:54

I use an OC200 in 5.6.4 and an ER7206, after updating the ER7206 from 1.2.1 to 1.2.3 the DHCP started to die during the night, every day I have to restart it to get it working again.

  0  
  0  
#91
Options
Re: ER605 ER7206 v1 - DHCP Server May Fail With 1.2.0 and 1.2.1 Firmware [Updated on Nov 11th 2022]
2022-11-17 21:18:25

  @gabxav 

 

Same exact problem I had but rebooting didn't work for me. 

  0  
  0  
#92
Options
Re: ER605 ER7206 v1 - DHCP Server May Fail With 1.2.0 and 1.2.1 Firmware [Updated on Nov 11th 2022]
2022-11-18 02:03:00

Dear @gabxav,

 

gabxav wrote

I use an OC200 in 5.6.4 and an ER7206, after updating the ER7206 from 1.2.1 to 1.2.3 the DHCP started to die during the night, every day I have to restart it to get it working again.

 

If I didn't get you wrong, the issue can be reproduced every day in your network and you're currently using the ER7206 1.2.3 firmware, right?

 

Our support engineer would like to check more details when the issue occurs to figure out the issue, are you willing to help?

>> Omada EAP Firmware Trial Available Here << *Try filtering posts on each forum by Label of [Early Access]*
  0  
  0  
#93
Options
Re: ER605 ER7206 v1 - DHCP Server May Fail With 1.2.0 and 1.2.1 Firmware [Updated on Nov 11th 2022]
2022-11-18 12:33:24

  @Fae 

That's right.
Of course, I'm happy to help, what do you need?

  0  
  0  
#94
Options
18910...

Tags

DHCP Service Highlighted Thread Official
Related Articles
ER605 ER7206 - “Use Fixed IP Address” (DHCP Reservation) Doesn't Take Effect. [Thread Closed]
22005 4
ER605 v2 2.1.1 DHCP issues
1291 0
 ER605 DHCP Routing Issues
557 0
 ER605 ER7206 - IPTV screen freezes with error that the bandwidth is not enough.
3032 1
 ER605 DHCP option customization issues
1500 0
need information on ER7206 and ER605 routers
2971 1
About Us
Press
Copyright © TP-Link Systems Inc. All rights reserved.