Peter Vogelaar
asked on
Client devices intermittently cannot connect
Good day, long post ahead, help needed!
We help a shelter that is having major connectivity problems. Here is the situation.
In the spring, we had to perform a hard reset on each AP. Unfortunately, the controller was lost in a computer swap out before we came to assist this building. We recreated the networks, and ever since, they have been having terrible connectivity on their devices. On average, every day 3-4 devices cannot connect. Usually the message is 'Cannot connect to network' or similar. Sometimes they connect, but then have no access to internet. They will 'forget' the network, and maybe 50% of the time it works. Sometimes they just leave the phone, and a few hours go by and it works again. Extremely inconsistent. The experience score is low, usually around 50-60%.
The building is on 3 levels. There are 3 on the main floor, 2 on each upper floor. They are all installed in central locations in hallways on the ceiling. They are all UAP-AC-Lite Access points, powered by a US-8-150W.
When I am onsite, my devices connect with no problem, signal strength is good too. But they constantly are having issues, and I am getting desperate for help. An important thing to note is that there was NO connectivity issues before we reconfigured the access points.
Here is what I have tried:
Removing/re-configuring all the wifi networks.
Manually set the 2.4G channels to either 1, 6, or 11, hoping they wouldn't interfere.
Daily reboots of APs
Configure DTIM to 3/3
Tried on and off of 'Auto-optimize Network'
There may be a few other things I have tried, but since I have been trying to get this resolved for over a month, I may not remember it all.
The DHCP server is a Cisco Meraki device provided by the ISP.
Please help!
We help a shelter that is having major connectivity problems. Here is the situation.
In the spring, we had to perform a hard reset on each AP. Unfortunately, the controller was lost in a computer swap out before we came to assist this building. We recreated the networks, and ever since, they have been having terrible connectivity on their devices. On average, every day 3-4 devices cannot connect. Usually the message is 'Cannot connect to network' or similar. Sometimes they connect, but then have no access to internet. They will 'forget' the network, and maybe 50% of the time it works. Sometimes they just leave the phone, and a few hours go by and it works again. Extremely inconsistent. The experience score is low, usually around 50-60%.
The building is on 3 levels. There are 3 on the main floor, 2 on each upper floor. They are all installed in central locations in hallways on the ceiling. They are all UAP-AC-Lite Access points, powered by a US-8-150W.
When I am onsite, my devices connect with no problem, signal strength is good too. But they constantly are having issues, and I am getting desperate for help. An important thing to note is that there was NO connectivity issues before we reconfigured the access points.
Here is what I have tried:
Removing/re-configuring all the wifi networks.
Manually set the 2.4G channels to either 1, 6, or 11, hoping they wouldn't interfere.
Daily reboots of APs
Configure DTIM to 3/3
Tried on and off of 'Auto-optimize Network'
There may be a few other things I have tried, but since I have been trying to get this resolved for over a month, I may not remember it all.
The DHCP server is a Cisco Meraki device provided by the ISP.
Please help!
SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
turn down the transmit power, almost always fixes problems like this for me with this gear.
You should start with basic diagnostics: get access to a device when it has the issue (or get someone else to) and chec its' IP details. has it got a alid IP/Subnet/DNS/gateway?
Can it ping the default gateway?
are they all in similar areas in the building or spread out randomly?
Check DHCP logs and see if you can find the problematic unit. is its IP assigned to another device? is it even in there?
Can it ping the default gateway?
are they all in similar areas in the building or spread out randomly?
Check DHCP logs and see if you can find the problematic unit. is its IP assigned to another device? is it even in there?
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
This is tricky, because you have to worry both about other APs and other networks in the area. Additionally, why aren't you making use of 5 GHz?