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Slow or unstable WiFi

Symptom: the customer has internet (the fiber connection is good), but the WiFi is slow, drops, or doesn't reach some rooms.

Before anything: separate WiFi from the connection​

Confirm the connection itself is good: optical signal OK (Optics) and a reasonable speed diagnostic on the device. If the fiber is good and only the WiFi is poor, follow along here.

Step by step​

  1. Open the CPE's WiFi tab (requires TR-069).

  2. Channel and interference: check Neighboring Networks. Many networks on the same channel degrade WiFi. Change the channel (or use automatic selection).

  3. Band: confirm the customer is using 5 GHz where possible (faster, less interference) and not only 2.4 GHz.

  4. Connected devices: on the Devices tab, check how many devices are on the network and whether one of them is hogging everything.

  5. Change parameters: adjust SSID/password/channel remotely as described in Change a CPE's parameters via ACS.

Most common causes​

CauseIndicationAction
Congested channelMany neighboring networks on the same channelChange channel / automatic
Only 2.4 GHz in useCustomer far from the router or only 2.4Recommend using 5 GHz
Insufficient coveragePoor only in far roomsSuggest a repeater / mesh
Overloaded deviceToo many devicesRestart / consider an upgrade
Physical limit

WiFi depends heavily on the customer's environment (walls, distance, appliances). Not every WiFi problem can be solved remotely — sometimes the solution is repositioning the router or using mesh.

When to escalate​

  • Insufficient coverage due to property size → offer mesh/repeater (sales), not a network fault.
  • Poor WiFi on several customers with the same model → evaluate the firmware.

See also​